/* =========================================================================
   NeuroNextBD — design system
   Palette comes from the logo: deep green, lime, navy and circuit blue.
   Light theme by default; dark theme via [data-theme="dark"] on <html>.
   ========================================================================= */
:root {
  --bg: #f5f8f6;
  --bg-soft: #edf3ef;
  --card: #ffffff;
  --card-2: #f2f6f3;
  --border: rgba(10, 40, 25, .09);
  --border-strong: rgba(10, 40, 25, .18);
  --text: #0d1a14;
  --muted: #4f6158;
  --faint: #86978e;
  --primary: #15803d;
  --primary-2: #16a34a;
  --primary-ink: #ffffff;
  --lime: #84cc16;
  --navy: #0b1d3a;
  --accent: #2563eb;
  --accent-2: #06b6d4;
  --success: #16a34a;
  --warning: #d97706;
  --danger: #dc2626;
  --info: #2563eb;
  --nn: #2563eb;
  --nn-2: #06b6d4;
  --grad: linear-gradient(135deg, #15803d 0%, #65a30d 60%, #84cc16 100%);
  --grad-soft: linear-gradient(135deg, rgba(21, 128, 61, .12), rgba(132, 204, 22, .12));
  --grad-nn: linear-gradient(135deg, #1d4ed8 0%, #06b6d4 100%);
  --grad-hero: radial-gradient(900px 500px at 10% -10%, rgba(132, 204, 22, .22), transparent 60%),
               radial-gradient(800px 500px at 100% 0%, rgba(37, 99, 235, .14), transparent 60%);
  --ring: 0 0 0 4px rgba(22, 163, 74, .18);
  --radius: 18px;
  --radius-sm: 12px;
  --shadow-sm: 0 1px 2px rgba(10, 30, 20, .06), 0 2px 8px -2px rgba(10, 30, 20, .06);
  --shadow: 0 18px 40px -18px rgba(10, 40, 25, .28);
  --shadow-lg: 0 30px 70px -25px rgba(10, 40, 25, .40);
  --font: "Inter", "Hind Siliguri", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-head: "Plus Jakarta Sans", "Inter", "Hind Siliguri", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --nav-h: 76px;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --i-loader: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M21 12a9 9 0 1 1-6.219-8.56'/%3E%3C/svg%3E");
  color-scheme: light;
}
[data-theme="dark"] {
  --bg: #070c16;
  --bg-soft: #0b1220;
  --card: #0f1729;
  --card-2: #141e33;
  --border: rgba(255, 255, 255, .08);
  --border-strong: rgba(255, 255, 255, .16);
  --text: #e8eef6;
  --muted: #9aa8bd;
  --faint: #66748a;
  --primary: #22c55e;
  --primary-2: #4ade80;
  --primary-ink: #04140a;
  --accent: #60a5fa;
  --nn: #60a5fa;
  --nn-2: #22d3ee;
  --grad: linear-gradient(135deg, #16a34a 0%, #65a30d 55%, #a3e635 100%);
  --grad-soft: linear-gradient(135deg, rgba(34, 197, 94, .14), rgba(163, 230, 53, .10));
  --grad-hero: radial-gradient(900px 500px at 10% -10%, rgba(34, 197, 94, .20), transparent 60%),
               radial-gradient(800px 500px at 100% 0%, rgba(37, 99, 235, .22), transparent 60%);
  --ring: 0 0 0 4px rgba(34, 197, 94, .22);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow: 0 18px 40px -18px rgba(0, 0, 0, .7);
  --shadow-lg: 0 30px 70px -25px rgba(0, 0, 0, .8);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--font); background: var(--bg); color: var(--text);
  line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; min-height: 100vh;
  display: flex; flex-direction: column;
}
main { flex: 1; }
img, video, iframe { max-width: 100%; }
img { display: block; height: auto; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, h5 { font-family: var(--font-head); line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.02em; overflow-wrap: anywhere; }
p { margin: 0 0 1em; }
code, pre { font-family: var(--mono); }
::selection { background: var(--primary); color: #fff; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 6px; }
[hidden] { display: none !important; }

.container { width: min(1200px, 100% - 32px); margin-inline: auto; }
.container-sm { width: min(820px, 100% - 32px); margin-inline: auto; }
.section { padding: 84px 0; }
.section-sm { padding: 44px 0; }
.muted { color: var(--muted); }
.faint { color: var(--faint); }
.center { text-align: center; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.grad-text-nn { background: var(--grad-nn); -webkit-background-clip: text; background-clip: text; color: transparent; }
.flex { display: flex; gap: 12px; align-items: center; }
.flex-wrap { flex-wrap: wrap; }
.between { justify-content: space-between; }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; } .mt-4 { margin-top: 40px; }
.mb-0 { margin-bottom: 0; } .mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.bn { font-family: "Hind Siliguri", var(--font); }

/* ---- grid --------------------------------------------------------------- */
.grid { display: grid; gap: 24px; }
.grid > * { min-width: 0; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
@media (max-width: 1024px) { .grid-4 { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 900px) { .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } .grid { gap: 16px; } .section { padding: 56px 0; } }
@media (min-width: 420px) and (max-width: 600px) { .grid-4.grid-keep-2 { grid-template-columns: repeat(2, 1fr); } }

/* ---- buttons ------------------------------------------------------------ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; position: relative; overflow: hidden;
  padding: 11px 20px; border-radius: 999px; font-weight: 600; font-size: .95rem; line-height: 1.2;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap; font-family: inherit;
  color: var(--text); background: none; text-align: center;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .2s, border-color .2s, color .2s;
}
.btn:active { transform: scale(.97); }
.btn[disabled], .btn.is-loading { opacity: .65; pointer-events: none; }
.btn.is-loading::after {
  content: ""; width: 1.05em; height: 1.05em; flex-shrink: 0; background: currentColor;
  -webkit-mask: var(--i-loader) center / contain no-repeat; mask: var(--i-loader) center / contain no-repeat;
  animation: spin .8s linear infinite;
}
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 10px 24px -10px rgba(21, 128, 61, .7); }
.btn-primary::before {
  content: ""; position: absolute; inset: 0; transform: translateX(-120%);
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, .35), transparent 70%); transition: transform .7s var(--ease);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 30px -12px rgba(21, 128, 61, .85); }
.btn-primary:hover::before { transform: translateX(120%); }
.btn-nn { background: var(--grad-nn); color: #fff; box-shadow: 0 10px 24px -10px rgba(37, 99, 235, .6); }
.btn-nn:hover { transform: translateY(-2px); }
.btn-ghost { border-color: var(--border-strong); background: var(--card); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn-soft { background: var(--grad-soft); color: var(--primary); }
.btn-soft:hover { filter: brightness(1.05); transform: translateY(-1px); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-white { background: #fff; color: #0d1a14; }
.btn-sm { padding: 7px 14px; font-size: .85rem; }
.btn-lg { padding: 14px 26px; font-size: 1rem; }
.btn-block { width: 100%; }
@media (max-width: 480px) { .btn { white-space: normal; } }
.link { color: var(--primary); font-weight: 600; }
.link:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ---- announcement bar ---------------------------------------------------- */
.announce { background: var(--navy); color: #e8f5ec; font-size: .9rem; position: relative; z-index: 51; }
.announce .container { display: flex; gap: 12px; align-items: center; justify-content: center; padding: 9px 36px 9px 0; min-height: 40px; text-align: center; }
.announce a.announce-link { font-weight: 700; color: #a3e635; white-space: nowrap; }
.announce .x { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); background: none; border: 0; color: inherit; opacity: .7; cursor: pointer; font-size: 1.1rem; }
.announce.with-img { background-size: cover; background-position: center; }

/* ---- navbar ------------------------------------------------------------- */
.nav {
  position: sticky; top: 0; z-index: 50; height: var(--nav-h);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(170%) blur(16px); -webkit-backdrop-filter: saturate(170%) blur(16px);
  border-bottom: 1px solid var(--border); transition: box-shadow .3s;
}
.nav.scrolled { box-shadow: 0 8px 30px -18px rgba(0, 0, 0, .35); }
.nav .container { height: 100%; display: flex; align-items: center; gap: 22px; }
.logo { display: inline-flex; align-items: center; flex-shrink: 0; }
.logo img { height: 54px; width: auto; }
.logo .logo-dark { display: none; }
[data-theme="dark"] .logo .logo-light { display: none; }
[data-theme="dark"] .logo .logo-dark { display: block; }
.nav-links { display: flex; gap: 2px; align-items: center; flex: 1; }
.nav-links a { padding: 8px 13px; border-radius: 999px; color: var(--muted); font-weight: 500; font-size: .93rem; transition: .2s; position: relative; }
.nav-links a:hover { color: var(--text); background: var(--card-2); }
.nav-links a.active { color: var(--primary); background: var(--grad-soft); font-weight: 600; }
.nav-links a.nn-link { color: var(--nn); }
.nav-actions { display: flex; gap: 8px; align-items: center; margin-left: auto; }
.icon-btn {
  width: 40px; height: 40px; border-radius: 999px; border: 1px solid var(--border); flex-shrink: 0;
  display: grid; place-items: center; cursor: pointer; background: var(--card); color: var(--text); font-size: 1rem; transition: .2s;
}
.icon-btn:hover { border-color: var(--primary); color: var(--primary); }
.icon-btn svg { width: 18px; height: 18px; }
.nav-search { position: relative; }
.nav-search input {
  width: 190px; padding: 9px 14px 9px 36px !important; border-radius: 999px !important; font-size: .9rem !important;
  transition: width .3s var(--ease) !important;
}
.nav-search input:focus { width: 250px; }
.nav-search svg { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); width: 16px; height: 16px; color: var(--muted); pointer-events: none; }
.menu-toggle { display: none; }
.avatar {
  width: 38px; height: 38px; border-radius: 999px; background: var(--grad); color: #fff; flex-shrink: 0;
  display: grid; place-items: center; font-weight: 700; font-size: .82rem; overflow: hidden; border: 0;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.dropdown { position: relative; }
.dropdown > button { cursor: pointer; }
.dropdown-menu {
  position: absolute; right: 0; top: calc(100% + 10px); min-width: 230px; padding: 8px; z-index: 60;
  background: var(--card); border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow-lg);
  opacity: 0; transform: translateY(-6px) scale(.98); pointer-events: none; transition: .2s var(--ease); transform-origin: top right;
}
.dropdown.open .dropdown-menu { opacity: 1; transform: none; pointer-events: auto; }
.dropdown-menu .who { padding: 8px 12px 10px; border-bottom: 1px solid var(--border); margin-bottom: 6px; overflow-wrap: anywhere; }
.dropdown-menu a, .dropdown-menu button {
  display: flex; gap: 10px; align-items: center; width: 100%; text-align: left; padding: 9px 12px; border-radius: 10px; font-size: .92rem;
  color: var(--text); background: none; border: 0; cursor: pointer; font-family: inherit;
}
.dropdown-menu a:hover, .dropdown-menu button:hover { background: var(--card-2); }
.nav-overlay { display: none; }
@media (max-width: 1080px) { .nav-search input { width: 150px; } .nav-search input:focus { width: 190px; } .nav-links a { padding: 8px 10px; } }
@media (max-width: 960px) {
  .menu-toggle { display: grid; }
  .nav-search { display: none; }
  .nav-links {
    position: fixed; top: 0; right: 0; bottom: 0; width: min(320px, 86vw); z-index: 70;
    flex-direction: column; align-items: stretch; gap: 4px; padding: 84px 16px 24px; background: var(--card);
    border-left: 1px solid var(--border); box-shadow: var(--shadow-lg); overflow-y: auto;
    transform: translateX(105%); transition: transform .35s var(--ease); flex: none;
  }
  .nav-links.open { transform: none; }
  .nav-links a { padding: 13px 16px; font-size: 1rem; border-radius: 12px; }
  .nav-links .mobile-search { display: block; margin-bottom: 8px; }
  .nav-overlay { display: block; position: fixed; inset: 0; background: rgba(5, 10, 8, .45); z-index: 65; opacity: 0; pointer-events: none; transition: opacity .3s; }
  .nav-overlay.open { opacity: 1; pointer-events: auto; }
  .menu-toggle { position: relative; z-index: 71; }
}
.nav-links .mobile-search { display: none; }
@media (max-width: 520px) {
  .logo img { height: 42px; }
  .nav .container { gap: 10px; }
  .nav-actions { gap: 6px; }
  .nav-actions .btn-ghost.hide-xs { display: none; }
  .nav-actions .btn-sm { padding: 7px 12px; }
}

/* ---- hero --------------------------------------------------------------- */
.hero { position: relative; padding: 96px 0 84px; overflow: hidden; isolation: isolate; background: var(--grad-hero); }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: .7;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 44px 44px; mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 25%, transparent 75%);
}
.orb { position: absolute; border-radius: 50%; filter: blur(80px); opacity: .35; z-index: -1; animation: float 14s ease-in-out infinite; }
.orb-1 { width: 420px; height: 420px; background: #22c55e; top: -160px; left: -120px; }
.orb-2 { width: 380px; height: 380px; background: #3b82f6; top: 40px; right: -140px; opacity: .25; animation-delay: -6s; }
.orb-nn { background: #06b6d4; }
@keyframes float { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(30px, 24px); } }
.hero h1 { font-size: clamp(2.2rem, 5.2vw, 4rem); font-weight: 800; letter-spacing: -.035em; }
.hero p.lead { font-size: clamp(1.02rem, 1.6vw, 1.18rem); color: var(--muted); max-width: 620px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.hero-grid > * { min-width: 0; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; gap: 40px; } .hero { padding: 64px 0 56px; } }
.pill {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px 6px 6px; border-radius: 999px; max-width: 100%;
  border: 1px solid var(--border-strong); background: var(--card); font-size: .85rem; color: var(--muted); margin-bottom: 22px; box-shadow: var(--shadow-sm);
}
.pill b { background: var(--grad); color: #fff; padding: 2px 10px; border-radius: 999px; font-size: .74rem; flex-shrink: 0; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero-trust { display: flex; gap: 32px; margin-top: 36px; flex-wrap: wrap; }
.hero-trust div strong { display: block; font-size: 1.6rem; font-weight: 800; font-family: var(--font-head); }
.hero-trust div span { color: var(--muted); font-size: .85rem; }
.hero-visual { position: relative; }
.hero-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 22px; box-shadow: var(--shadow-lg); padding: 22px;
  animation: rise 1s var(--ease) both;
}
.hero-card .hc-row { display: flex; gap: 14px; align-items: center; padding: 12px; border-radius: 14px; background: var(--card-2); margin-top: 10px; }
.hero-card .hc-ic { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; font-size: 1.2rem; background: var(--grad-soft); flex-shrink: 0; }
.hero-card .hc-row small { color: var(--muted); display: block; }
.hero-float {
  position: absolute; background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 10px 14px; box-shadow: var(--shadow);
  font-size: .85rem; font-weight: 600; display: flex; gap: 8px; align-items: center; animation: bob 6s ease-in-out infinite;
}
.hero-float.f1 { top: -18px; right: 18px; }
.hero-float.f2 { bottom: -18px; left: -10px; animation-delay: -3s; }
@media (max-width: 520px) { .hero-float { display: none; } }
@keyframes bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@keyframes rise { from { opacity: 0; transform: translateY(24px); } }

/* ---- banner slider ------------------------------------------------------- */
.banner-wrap { padding-top: 20px; }
.banner-wrap.full { padding-top: 0; }
.slider { position: relative; border-radius: 22px; overflow: hidden; background: var(--navy); box-shadow: var(--shadow); isolation: isolate; }
.banner-wrap.full .slider { border-radius: 0; }
.slides { position: relative; height: var(--h, 420px); }
@media (max-width: 640px) { .slides { height: var(--hm, 220px); } }
.slide {
  position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .8s var(--ease), visibility .8s;
  display: flex; align-items: flex-end; background: var(--bg-c, #0b3d1f);
}
.slide.active { opacity: 1; visibility: visible; z-index: 1; }
.slide picture, .slide img { position: absolute; inset: 0; width: 100%; height: 100%; }
.slide img { object-fit: var(--fit, cover); transform: scale(1.06); transition: transform 6s ease-out; }
.slide.active img { transform: scale(1); }
.slide.fit-contain img { transform: none; }
.slide .slide-text {
  position: relative; z-index: 2; width: 100%; padding: clamp(18px, 4vw, 48px); color: #fff;
  background: linear-gradient(transparent, rgba(0, 0, 0, .65));
}
.slide.active .slide-text > * { animation: rise .8s var(--ease) both; }
.slide.active .slide-text > *:nth-child(2) { animation-delay: .1s; }
.slide.active .slide-text > *:nth-child(3) { animation-delay: .2s; }
.slide h2 { font-size: clamp(1.3rem, 3.4vw, 2.6rem); margin: 0 0 6px; color: #fff; max-width: 760px; }
.slide p { margin: 0 0 14px; opacity: .9; max-width: 640px; font-size: clamp(.9rem, 1.6vw, 1.1rem); }
.slide a.cover-link { position: absolute; inset: 0; z-index: 1; }
.slider-nav { position: absolute; inset: auto 16px 16px auto; z-index: 3; display: flex; gap: 8px; align-items: center; }
.slider-dots { display: flex; gap: 6px; }
.slider-dots button { width: 8px; height: 8px; border-radius: 99px; border: 0; background: rgba(255, 255, 255, .5); cursor: pointer; padding: 0; transition: width .3s var(--ease), background .3s; }
.slider-dots button.active { width: 26px; background: #fff; }
.slider-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3; width: 42px; height: 42px; border-radius: 50%; border: 0;
  background: rgba(255, 255, 255, .18); color: #fff; backdrop-filter: blur(8px); cursor: pointer; font-size: 1.1rem; transition: .2s; display: grid; place-items: center;
}
.slider-arrow:hover { background: rgba(255, 255, 255, .32); }
.slider-arrow.prev { left: 14px; } .slider-arrow.next { right: 14px; }
@media (max-width: 640px) { .slider-arrow { display: none; } .slider { border-radius: 16px; } .slider-nav { right: 50%; transform: translateX(50%); bottom: 10px; } }

.inline-banner { position: relative; border-radius: 22px; overflow: hidden; display: flex; align-items: center; height: var(--h, 260px); background: var(--bg-c); color: #fff; isolation: isolate; }
@media (max-width: 640px) { .inline-banner { height: var(--hm, 200px); border-radius: 16px; } }
.inline-banner img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: var(--fit, cover); z-index: -1; }
.inline-banner .ib-text { padding: clamp(18px, 4vw, 48px); background: linear-gradient(90deg, rgba(0, 0, 0, .55), transparent); height: 100%; display: flex; flex-direction: column; justify-content: center; width: 100%; }
.inline-banner h3 { font-size: clamp(1.2rem, 3vw, 2rem); color: #fff; }

/* ---- section heading ---------------------------------------------------- */
.eyebrow { display: inline-flex; gap: 8px; align-items: center; font-size: .76rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--primary); margin-bottom: 12px; }
.eyebrow::before { content: ""; width: 18px; height: 2px; border-radius: 2px; background: var(--grad); }
.eyebrow.nn { color: var(--nn); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 36px; flex-wrap: wrap; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); margin: 0; }
.section-head p { color: var(--muted); margin: 8px 0 0; max-width: 560px; }
.section-head.center { flex-direction: column; align-items: center; text-align: center; }
.section-head.center .eyebrow::after { content: ""; width: 18px; height: 2px; border-radius: 2px; background: var(--grad); }

/* ---- cards -------------------------------------------------------------- */
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm);
  transition: transform .35s var(--ease), border-color .3s, box-shadow .35s var(--ease); position: relative; overflow: hidden; min-width: 0;
}
.card-hover:hover { transform: translateY(-5px); border-color: color-mix(in srgb, var(--primary) 35%, var(--border)); box-shadow: var(--shadow); }
.card-body { padding: 20px; }
.card-pad { padding: 26px; }
@media (max-width: 600px) { .card-pad { padding: 20px; } }
.card-title { font-size: 1.15rem; margin-bottom: 14px; display: flex; gap: 10px; align-items: center; }

.thumb { position: relative; aspect-ratio: 16 / 9; background: var(--card-2); overflow: hidden; }
.thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.card-hover:hover .thumb img { transform: scale(1.06); }
.thumb-fallback { width: 100%; height: 100%; display: grid; place-items: center; font-size: 3rem; background: var(--grad); }
.play {
  position: absolute; inset: 0; display: grid; place-items: center; background: linear-gradient(transparent 40%, rgba(0, 0, 0, .5));
}
.play span {
  width: 54px; height: 54px; border-radius: 50%; background: rgba(255, 255, 255, .95); color: #0d1a14;
  display: grid; place-items: center; font-size: 1.05rem; padding-left: 4px; box-shadow: 0 8px 30px rgba(0, 0, 0, .4); transition: .35s var(--ease);
}
.card-hover:hover .play span { transform: scale(1.12); }
.thumb .duration { position: absolute; right: 10px; bottom: 10px; background: rgba(0, 0, 0, .75); color: #fff; font-size: .74rem; padding: 3px 8px; border-radius: 6px; font-weight: 600; }
.thumb .ribbon { position: absolute; left: 12px; top: 12px; display: flex; gap: 6px; }

.badge {
  display: inline-flex; align-items: center; gap: 5px; font-size: .73rem; font-weight: 600; padding: 4px 10px; white-space: nowrap;
  border-radius: 999px; background: var(--card-2); border: 1px solid var(--border); color: var(--muted); max-width: 100%; overflow: hidden; text-overflow: ellipsis;
}
.badge-primary { background: color-mix(in srgb, var(--primary) 12%, transparent); border-color: color-mix(in srgb, var(--primary) 30%, transparent); color: var(--primary); }
.badge-free { background: #16a34a; border-color: #16a34a; color: #fff; }
.badge-warn { background: color-mix(in srgb, var(--warning) 14%, transparent); border-color: color-mix(in srgb, var(--warning) 35%, transparent); color: var(--warning); }
.badge-danger { background: color-mix(in srgb, var(--danger) 12%, transparent); border-color: color-mix(in srgb, var(--danger) 35%, transparent); color: var(--danger); }
.badge-nn { background: color-mix(in srgb, var(--nn) 12%, transparent); border-color: color-mix(in srgb, var(--nn) 35%, transparent); color: var(--nn); }
.badge-solid { background: var(--grad); color: #fff; border: 0; }
.badge-dark { background: rgba(0, 0, 0, .65); color: #fff; border: 0; backdrop-filter: blur(6px); }

.course-card, .post-card, .video-card, .note-card { display: flex; flex-direction: column; }
.course-card .card-body, .note-card .card-body { flex: 1; display: flex; flex-direction: column; }
.course-card h3, .video-card h3, .post-card h3, .note-card h3 { font-size: 1.05rem; margin: 10px 0 8px; }
.course-card .meta, .post-card .meta, .video-card .meta, .note-card .meta { display: flex; gap: 6px 14px; flex-wrap: wrap; font-size: .82rem; color: var(--muted); }
.course-card .foot, .note-card .foot { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding-top: 14px; margin-top: auto; border-top: 1px solid var(--border); }
.course-card .desc { margin: 0 0 14px; }
.price { font-weight: 800; font-size: 1.15rem; font-family: var(--font-head); }
.price del { color: var(--faint); font-weight: 500; font-size: .85rem; margin-left: 6px; }
.rating, .stars { color: #f59e0b; font-size: .88rem; letter-spacing: 1px; white-space: nowrap; }
.clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.clamp-3 { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* category cards */
.cat-card { display: flex; flex-direction: column; text-align: left; }
.cat-card .cat-media { aspect-ratio: 4 / 3; position: relative; overflow: hidden; background: var(--c, var(--primary)); }
.cat-card .cat-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.cat-card:hover .cat-media img { transform: scale(1.08); }
.cat-card .cat-emoji {
  width: 100%; height: 100%; display: grid; place-items: center; font-size: 3rem;
  background: radial-gradient(circle at 30% 20%, color-mix(in srgb, var(--c) 55%, #fff) 0%, var(--c) 70%);
}
.cat-card .cat-body { padding: 14px 16px 16px; }
.cat-card h4 { margin: 0 0 2px; font-size: 1rem; }
.cat-card small { color: var(--muted); }
.cat-card .go { position: absolute; right: 12px; bottom: 12px; width: 34px; height: 34px; border-radius: 50%; background: #fff; color: #0d1a14; display: grid; place-items: center; transform: translateY(10px); opacity: 0; transition: .35s var(--ease); }
.cat-card:hover .go { transform: none; opacity: 1; }
.topic-card { padding: 20px; display: flex; gap: 16px; align-items: center; }
.topic-icon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; font-size: 1.6rem; flex-shrink: 0; overflow: hidden; }
.topic-icon img { width: 100%; height: 100%; object-fit: cover; }

/* feature list */
.feature { padding: 26px; }
.feature .ic { width: 50px; height: 50px; border-radius: 14px; display: grid; place-items: center; font-size: 1.4rem; background: var(--grad-soft); color: var(--primary); margin-bottom: 16px; transition: transform .25s var(--ease); }
.feature h3 { font-size: 1.08rem; }
.feature p { color: var(--muted); margin: 0; font-size: .95rem; }

/* stats strip */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.stats > div { background: var(--card); padding: 24px; text-align: center; }
.stats strong { display: block; font-size: 1.9rem; font-weight: 800; font-family: var(--font-head); }
.stats span { color: var(--muted); font-size: .88rem; }
@media (max-width: 700px) { .stats { grid-template-columns: repeat(2, 1fr); } .stats > div { padding: 18px 10px; } .stats strong { font-size: 1.5rem; } }

/* ---- NeuroNextBD services ----------------------------------------------- */
.nn-band {
  position: relative; border-radius: 28px; overflow: hidden; padding: 56px; isolation: isolate;
  background: radial-gradient(800px 400px at 0% 0%, color-mix(in srgb, var(--nn) 16%, transparent), transparent 60%),
              radial-gradient(700px 400px at 100% 100%, color-mix(in srgb, var(--nn-2) 16%, transparent), transparent 60%), var(--card);
  border: 1px solid color-mix(in srgb, var(--nn) 25%, transparent);
}
@media (max-width: 640px) { .nn-band { padding: 28px 18px; border-radius: 20px; } }
.service-card { padding: 26px; display: flex; flex-direction: column; height: 100%; }
.service-card .ic {
  width: 54px; height: 54px; border-radius: 16px; display: grid; place-items: center; font-size: 1.6rem; margin-bottom: 16px;
  background: color-mix(in srgb, var(--nn) 10%, transparent); border: 1px solid color-mix(in srgb, var(--nn) 25%, transparent);
}
.service-card h3 { font-size: 1.12rem; }
.service-card p { color: var(--muted); font-size: .95rem; flex: 1; }
.service-card .more { color: var(--nn); font-weight: 600; font-size: .9rem; }
.service-card:hover { border-color: color-mix(in srgb, var(--nn) 40%, transparent); }
.nn-theme .btn-primary { background: var(--grad-nn); box-shadow: 0 10px 24px -10px rgba(37, 99, 235, .6); }
.nn-theme .eyebrow { color: var(--nn); }
.nn-theme .eyebrow::before, .nn-theme .eyebrow::after { background: var(--grad-nn); }
.check-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.check-list li { display: flex; gap: 10px; align-items: flex-start; }
.check-list li::before { content: "✓"; color: #fff; background: var(--success); width: 20px; height: 20px; border-radius: 50%; display: grid; place-items: center; font-size: .7rem; font-weight: 800; flex-shrink: 0; margin-top: 2px; }
.nn-theme .check-list li::before { background: var(--nn); }
.steps { counter-reset: step; display: grid; gap: 12px; padding: 0; margin: 0; }
.steps li { list-style: none; counter-increment: step; display: flex; gap: 14px; align-items: center; padding: 15px; background: var(--card); border-radius: 14px; border: 1px solid var(--border); }
.steps li::before { content: counter(step, decimal-leading-zero); font-family: var(--mono); font-weight: 700; color: var(--primary); }
.nn-theme .steps li::before { color: var(--nn); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { padding: 7px 13px; border-radius: 999px; background: var(--card); border: 1px solid var(--border); font-size: .84rem; color: var(--muted); transition: .2s; white-space: nowrap; }
.chip.active, a.chip:hover { border-color: var(--primary); color: var(--primary); background: var(--grad-soft); }
.chip.mono { font-family: var(--mono); font-size: .78rem; }
.chips-scroll { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 6px; scrollbar-width: thin; }

.plan { padding: 30px; display: flex; flex-direction: column; }
.plan.popular { border-color: var(--nn); box-shadow: 0 0 0 1px var(--nn), 0 20px 50px -20px color-mix(in srgb, var(--nn) 60%, transparent); }
.plan .price-big { font-size: 2.1rem; font-weight: 800; margin: 10px 0 4px; font-family: var(--font-head); }
.plan ul { flex: 1; margin: 20px 0 26px; }
.testimonial { padding: 26px; }
.testimonial blockquote { margin: 14px 0 20px; font-size: 1rem; }
.testimonial .who { display: flex; gap: 12px; align-items: center; }
.testimonial .who small { color: var(--muted); display: block; }

/* ---- forms -------------------------------------------------------------- */
.form-grid { display: grid; gap: 16px; }
.form-grid.cols-2 { grid-template-columns: 1fr 1fr; }
@media (max-width: 640px) { .form-grid.cols-2 { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field.full { grid-column: 1 / -1; }
.field > label, .field-label { font-size: .86rem; font-weight: 600; color: var(--text); }
.field .req { color: var(--danger); }
input[type=text], input[type=email], input[type=password], input[type=url], input[type=number], input[type=tel],
input[type=search], input[type=date], input[type=datetime-local], input[type=file], select, textarea {
  width: 100%; padding: 12px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border-strong);
  background: var(--card); color: var(--text); font: inherit; font-size: .95rem; transition: border-color .2s, box-shadow .2s;
  min-width: 0;
}
input[type=color] { width: 64px; height: 42px; padding: 3px; border-radius: 10px; border: 1px solid var(--border-strong); background: var(--card); cursor: pointer; }
input[type=file] { padding: 9px; }
input::placeholder, textarea::placeholder { color: var(--faint); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: var(--ring); }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--danger); box-shadow: 0 0 0 4px color-mix(in srgb, var(--danger) 14%, transparent); }
.field.has-error { animation: shake .4s; }
@keyframes shake { 20%, 60% { transform: translateX(-4px); } 40%, 80% { transform: translateX(4px); } }
.errorlist { list-style: none; padding: 0; margin: 0; color: var(--danger); font-size: .84rem; display: grid; gap: 2px; }
.errorlist li::before { content: "⚠ "; }
.form-alert { display: flex; gap: 10px; padding: 12px 14px; border-radius: 12px; font-size: .9rem; background: color-mix(in srgb, var(--danger) 9%, var(--card)); border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent); color: var(--text); }
.form-alert.info { background: color-mix(in srgb, var(--info) 8%, var(--card)); border-color: color-mix(in srgb, var(--info) 28%, transparent); }
.form-alert.warn { background: color-mix(in srgb, var(--warning) 9%, var(--card)); border-color: color-mix(in srgb, var(--warning) 30%, transparent); }
.helptext { color: var(--faint); font-size: .8rem; }
.helptext ul { margin: 4px 0 0; padding-left: 18px; }
input[type=checkbox] { width: 18px; height: 18px; accent-color: var(--primary); }
.check-field { flex-direction: row; align-items: center; gap: 10px; }

/* password show/hide */
.pw-wrap { position: relative; display: block; }
.pw-wrap input { padding-right: 46px; }
.pw-toggle {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%); width: 36px; height: 36px; border: 0; border-radius: 10px;
  background: none; color: var(--muted); cursor: pointer; display: grid; place-items: center;
}
.pw-toggle:hover { color: var(--primary); background: var(--card-2); }
.pw-toggle svg { width: 19px; height: 19px; }

/* star rating input (choices are 5→1, reversed for sibling hover) */
.star-input { display: inline-flex; flex-direction: row-reverse; justify-content: flex-end; gap: 4px; }
.star-input input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.star-input label { font-size: 2rem; line-height: 1; color: var(--border-strong); cursor: pointer; transition: transform .15s, color .15s; }
.star-input label:hover, .star-input label:hover ~ label, .star-input input:checked ~ label { color: #f59e0b; }
.star-input label:hover { transform: scale(1.18); }
.star-input input:focus-visible + label { outline: 2px solid var(--primary); border-radius: 4px; }

/* ---- auth --------------------------------------------------------------- */
.auth-wrap { min-height: calc(100vh - var(--nav-h)); display: grid; grid-template-columns: 1fr 1fr; }
.auth-side {
  position: relative; overflow: hidden; isolation: isolate; padding: 56px; display: flex; flex-direction: column; justify-content: space-between; gap: 32px;
  background: linear-gradient(160deg, #0b1d3a 0%, #0c3b22 60%, #166534 100%); color: #e9f7ee;
}
.auth-side::before { content: ""; position: absolute; inset: 0; z-index: -1; opacity: .2; background-image: linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px); background-size: 40px 40px; }
.auth-side .logo-chip { background: #fff; border-radius: 18px; padding: 12px 18px; display: inline-flex; align-self: flex-start; box-shadow: var(--shadow); }
.auth-side .logo-chip img { height: 46px; }
.auth-side h2 { font-size: clamp(1.6rem, 2.6vw, 2.2rem); color: #fff; }
.auth-side ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.auth-side li { display: flex; gap: 12px; align-items: flex-start; }
.auth-side li span:first-child { width: 34px; height: 34px; border-radius: 10px; background: rgba(255,255,255,.1); display: grid; place-items: center; flex-shrink: 0; }
.auth-main { display: grid; place-items: center; padding: 48px 20px; position: relative; overflow: hidden; }
.auth-card { width: min(440px, 100%); padding: 34px; animation: rise .7s var(--ease) both; }
.auth-card .mobile-logo { display: none; margin: 0 auto 18px; height: 44px; }
.auth-switch { display: flex; gap: 4px; padding: 4px; border-radius: 999px; background: var(--card-2); margin-bottom: 20px; }
.auth-switch a { flex: 1; text-align: center; padding: 8px; border-radius: 999px; font-weight: 600; font-size: .9rem; color: var(--muted); }
.auth-switch a.active { background: var(--card); color: var(--text); box-shadow: var(--shadow-sm); }
@media (max-width: 900px) {
  .auth-wrap { grid-template-columns: 1fr; }
  .auth-side { display: none; }
  .auth-card .mobile-logo.logo-light { display: block; }
  [data-theme="dark"] .auth-card .mobile-logo.logo-light { display: none; }
  [data-theme="dark"] .auth-card .mobile-logo.logo-dark { display: block; }
  .auth-main { background: var(--grad-hero); place-items: start center; }
}
@media (max-width: 480px) { .auth-card { padding: 24px 18px; } .auth-main { padding: 28px 14px; } }

/* filter bar */
.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 28px; padding: 12px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.filters input, .filters select { width: auto; flex: 1 1 150px; padding: 10px 14px; }
@media (max-width: 600px) { .filters > * { flex: 1 1 100%; } .filters .btn { width: 100%; } }

/* ---- page header -------------------------------------------------------- */
.page-head { padding: 56px 0 36px; position: relative; overflow: hidden; isolation: isolate; border-bottom: 1px solid var(--border); background: var(--grad-hero); }
.page-head h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
.page-head p { color: var(--muted); max-width: 640px; font-size: 1.04rem; }
.breadcrumb { display: flex; gap: 8px; font-size: .85rem; color: var(--muted); margin-bottom: 14px; flex-wrap: wrap; align-items: center; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { opacity: .5; }

/* ---- course detail ------------------------------------------------------ */
.detail-grid { display: grid; grid-template-columns: minmax(0, 1fr) 370px; gap: 40px; align-items: start; }
@media (max-width: 960px) { .detail-grid { grid-template-columns: 1fr; gap: 28px; } }
.sticky { position: sticky; top: calc(var(--nav-h) + 20px); }
@media (max-width: 960px) { .sticky { position: static; } }
.video-frame { position: relative; aspect-ratio: 16 / 9; border-radius: var(--radius); overflow: hidden; background: #000; width: 100%; }
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.curriculum details { border: 1px solid var(--border); border-radius: 14px; margin-bottom: 10px; background: var(--card); overflow: hidden; }
.curriculum summary { padding: 15px 18px; cursor: pointer; font-weight: 600; display: flex; justify-content: space-between; align-items: center; gap: 12px; list-style: none; }
.curriculum summary::-webkit-details-marker { display: none; }
.curriculum summary::after { content: "⌄"; color: var(--muted); font-size: 1.1rem; line-height: 1; transition: transform .3s var(--ease); }
.curriculum details[open] summary::after { transform: rotate(180deg); }
.curriculum summary small { color: var(--muted); font-weight: 400; margin-left: auto; }
.lesson-row { display: flex; align-items: center; gap: 12px; padding: 12px 18px; border-top: 1px solid var(--border); font-size: .92rem; transition: background .2s; }
.lesson-row .ic { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; font-size: .72rem; background: var(--card-2); flex-shrink: 0; font-weight: 700; }
.lesson-row.done .ic { background: var(--success); color: #fff; }
.lesson-row.current { background: var(--grad-soft); }
.lesson-row.current .ic { background: var(--primary); color: #fff; box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 20%, transparent); }
.lesson-row.here { box-shadow: inset 3px 0 0 var(--primary); }
.lesson-row .t { flex: 1; min-width: 0; }
.lesson-row small { color: var(--muted); white-space: nowrap; }
a.lesson-row:hover { background: var(--card-2); }
.lesson-row.locked { color: var(--faint); cursor: not-allowed; }
.lesson-row.locked .ic { background: transparent; border: 1px dashed var(--border-strong); }

.prose { font-size: 1.03rem; line-height: 1.8; overflow-wrap: anywhere; }
.prose h2 { font-size: 1.5rem; margin-top: 1.8em; } .prose h3 { font-size: 1.22rem; margin-top: 1.5em; }
.prose a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.prose img { border-radius: 12px; margin: 1.5em 0; }
.prose blockquote { border-left: 3px solid var(--primary); margin: 1.5em 0; padding: 4px 0 4px 20px; color: var(--muted); }
.prose code { background: var(--card-2); padding: 2px 7px; border-radius: 6px; font-size: .88em; border: 1px solid var(--border); }
.prose pre { background: #0b1220; color: #d6e2ff; padding: 20px; border-radius: 14px; overflow-x: auto; border: 1px solid var(--border); font-size: .9rem; line-height: 1.65; position: relative; max-width: 100%; }
.prose pre code { background: none; border: 0; padding: 0; color: inherit; }
.prose ul, .prose ol { padding-left: 1.4em; } .prose li { margin-bottom: .4em; }
.prose table { width: 100%; border-collapse: collapse; display: block; overflow-x: auto; } .prose th, .prose td { border: 1px solid var(--border); padding: 10px; }
.prose iframe { max-width: 100%; }
.copy-btn { position: absolute; top: 10px; right: 10px; font-size: .74rem; padding: 4px 10px; border-radius: 6px; border: 1px solid rgba(255,255,255,.15); background: rgba(255,255,255,.08); color: #cfe0f5; cursor: pointer; font-family: var(--font); }

/* ---- lesson player layout ----------------------------------------------- */
.player-layout { display: grid; grid-template-columns: minmax(0, 1fr) 360px; min-height: calc(100vh - var(--nav-h)); }
.player-main { padding: 24px clamp(16px, 3vw, 36px) 48px; border-right: 1px solid var(--border); min-width: 0; }
.player-inner { max-width: 1040px; margin-inline: auto; }
/* Video fits the viewport: never wider than the column, never taller than the screen allows. */
.player-main .video-frame {
  width: min(100%, max(20rem, calc((100svh - var(--nav-h) - 190px) * 16 / 9)));
  margin-inline: auto; box-shadow: var(--shadow);
}
.player-side { background: var(--bg-soft); max-height: calc(100vh - var(--nav-h)); overflow-y: auto; position: sticky; top: var(--nav-h); }
.player-side .head { padding: 18px 20px; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: var(--bg-soft); z-index: 1; }
@media (max-width: 1080px) {
  .player-layout { grid-template-columns: 1fr; }
  .player-side { position: static; max-height: none; border-top: 1px solid var(--border); }
  .player-main { border-right: 0; padding: 14px 14px 32px; }
  .player-main .video-frame { width: 100%; }
}
@media (max-width: 1080px) and (orientation: landscape) and (max-height: 520px) {
  .player-main .video-frame { width: min(100%, calc((100svh - var(--nav-h) - 24px) * 16 / 9)); }
}
.progress { height: 8px; border-radius: 99px; background: var(--card-2); overflow: hidden; }
.progress > span { display: block; height: 100%; background: var(--grad); border-radius: 99px; transition: width 1s var(--ease); animation: grow 1.4s var(--ease) both; }
@keyframes grow { from { width: 0; } }
.progress.lg { height: 12px; }
.lesson-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.lesson-nav .btn { max-width: 100%; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin: 26px 0 18px; overflow-x: auto; }
.tabs button { padding: 12px 16px; background: none; border: 0; color: var(--muted); font: inherit; font-weight: 600; cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.tabs button.active { color: var(--primary); border-color: var(--primary); }
.tab-panel { display: none; } .tab-panel.active { display: block; animation: rise .4s var(--ease); }

/* lesson flow stepper */
.flow { margin-top: 22px; padding: 22px; border-radius: 20px; background: var(--card); border: 1px solid var(--border); box-shadow: var(--shadow-sm); scroll-margin-top: calc(var(--nav-h) + 16px); }
.stepper { display: flex; gap: 0; margin-bottom: 20px; counter-reset: s; }
.stepper li { list-style: none; flex: 1; position: relative; text-align: center; font-size: .8rem; color: var(--faint); font-weight: 600; }
.stepper li::before {
  counter-increment: s; content: counter(s); display: grid; place-items: center; width: 34px; height: 34px; margin: 0 auto 6px; border-radius: 50%;
  background: var(--card-2); border: 2px solid var(--border-strong); color: var(--muted); position: relative; z-index: 1; transition: .4s var(--ease);
}
.stepper li::after { content: ""; position: absolute; top: 16px; left: calc(-50% + 18px); right: calc(50% + 18px); height: 2px; background: var(--border-strong); }
.stepper li:first-child::after { display: none; }
.stepper li.done { color: var(--success); }
.stepper li.done::before { content: "✓"; background: var(--success); border-color: var(--success); color: #fff; }
.stepper li.done::after, .stepper li.now::after { background: var(--success); }
.stepper li.now { color: var(--text); }
.stepper li.now::before { background: var(--primary); border-color: var(--primary); color: #fff; box-shadow: 0 0 0 6px color-mix(in srgb, var(--primary) 18%, transparent); animation: pulse 2s 3; }
@keyframes pulse { 50% { box-shadow: 0 0 0 10px color-mix(in srgb, var(--primary) 6%, transparent); } }
.flow-panel { animation: rise .5s var(--ease); }
.flow-panel h3 { font-size: 1.2rem; display: flex; gap: 10px; align-items: center; }
.quiz-q { padding: 18px; border: 1px solid var(--border); border-radius: 16px; margin-bottom: 14px; background: var(--bg-soft); }
.quiz-q.wrong { border-color: color-mix(in srgb, var(--danger) 45%, transparent); }
.quiz-q .qn { font-weight: 700; margin-bottom: 12px; display: flex; gap: 10px; }
.quiz-q .qn span { color: var(--primary); flex-shrink: 0; }
.choice { display: flex; gap: 12px; align-items: center; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--border-strong); background: var(--card); cursor: pointer; margin-top: 8px; transition: .2s; }
.choice:hover { border-color: var(--primary); }
.choice input { accent-color: var(--primary); width: 18px; height: 18px; flex-shrink: 0; }
.choice:has(input:checked) { border-color: var(--primary); background: var(--grad-soft); box-shadow: var(--ring); }
.result-card { display: flex; gap: 18px; align-items: center; padding: 18px; border-radius: 16px; background: var(--card-2); flex-wrap: wrap; }
.result-card.pass { background: color-mix(in srgb, var(--success) 10%, var(--card)); }
.result-card.fail { background: color-mix(in srgb, var(--danger) 8%, var(--card)); }
.done-hero { text-align: center; padding: 10px 0; }
.done-hero .big { font-size: 3rem; line-height: 1; color: var(--success); }
.done-hero .big .icon { stroke-width: 1.75; }
@keyframes pop { 0% { transform: scale(.3); opacity: 0; } 70% { transform: scale(1.15); } }

/* ---- dashboard ---------------------------------------------------------- */
.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.kpi { padding: 20px; display: flex; gap: 14px; align-items: center; }
.kpi .ki { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; font-size: 1.35rem; background: var(--grad-soft); flex-shrink: 0; }
.kpi strong { display: block; font-size: 1.55rem; font-family: var(--font-head); line-height: 1.1; }
.kpi span { color: var(--muted); font-size: .84rem; }
@media (max-width: 900px) { .kpis { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 420px) { .kpis { grid-template-columns: 1fr 1fr; gap: 10px; } .kpi { padding: 14px; flex-direction: column; align-items: flex-start; gap: 8px; } }
.dash-grid { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 24px; align-items: start; }
@media (max-width: 1000px) { .dash-grid { grid-template-columns: 1fr; } }
.dash-course { display: grid; grid-template-columns: 96px minmax(0, 1fr) auto; gap: 18px; align-items: center; padding: 16px; }
.dash-course .ring-wrap { position: relative; width: 96px; height: 96px; }
.dash-course .info h3 { font-size: 1.04rem; margin: 6px 0 8px; }
.dash-course .mini { display: flex; gap: 6px 16px; flex-wrap: wrap; font-size: .82rem; color: var(--muted); margin-top: 8px; }
@media (max-width: 700px) {
  .dash-course { grid-template-columns: 72px minmax(0, 1fr); }
  .dash-course .ring-wrap { width: 72px; height: 72px; }
  .dash-course .actions { grid-column: 1 / -1; display: flex; gap: 8px; }
  .dash-course .actions .btn { flex: 1; }
}
.ring { --p: 0; --size: 96px; width: 100%; height: 100%; border-radius: 50%; display: grid; place-items: center; position: relative;
  background: conic-gradient(var(--primary) calc(var(--p) * 1%), var(--card-2) 0); animation: ringfill 1.6s var(--ease) both; }
@keyframes ringfill { from { --p: 0; } }
.ring::before { content: ""; position: absolute; inset: 9px; border-radius: 50%; background: var(--card); }
.ring b { position: relative; font-family: var(--font-head); font-size: 1.15rem; }
.ring.complete { background: conic-gradient(var(--success) 100%, var(--card-2) 0); }
@property --p { syntax: "<number>"; inherits: false; initial-value: 0; }
.activity { display: grid; grid-template-columns: repeat(14, 1fr); gap: 6px; align-items: end; height: 120px; padding-top: 8px; }
.activity .bar { background: var(--card-2); border-radius: 6px 6px 3px 3px; position: relative; min-height: 6px; height: var(--h); transition: height 1s var(--ease); }
.activity .bar.on { background: var(--grad); }
.activity .bar:hover::after { content: attr(data-tip); position: absolute; bottom: calc(100% + 6px); left: 50%; transform: translateX(-50%); background: var(--navy); color: #fff; font-size: .72rem; padding: 4px 8px; border-radius: 6px; white-space: nowrap; z-index: 2; }
.activity-labels { display: flex; justify-content: space-between; font-size: .72rem; color: var(--faint); margin-top: 6px; }
.table-wrap { overflow-x: auto; border-radius: 14px; border: 1px solid var(--border); }
table.tbl { width: 100%; border-collapse: collapse; font-size: .9rem; }
.tbl th { text-align: left; font-size: .76rem; text-transform: uppercase; letter-spacing: .06em; color: var(--faint); padding: 12px 14px; background: var(--card-2); white-space: nowrap; }
.tbl td { padding: 12px 14px; border-top: 1px solid var(--border); vertical-align: middle; }
.score-pill { display: inline-flex; padding: 3px 10px; border-radius: 999px; font-weight: 700; font-size: .8rem; }
.score-pill.pass { background: color-mix(in srgb, var(--success) 14%, transparent); color: var(--success); }
.score-pill.fail { background: color-mix(in srgb, var(--danger) 12%, transparent); color: var(--danger); }
.cert-card { padding: 18px; display: flex; gap: 14px; align-items: center; background: linear-gradient(135deg, color-mix(in srgb, var(--lime) 12%, var(--card)), var(--card)); }
.cert-card .medal { font-size: 2rem; }

/* ---- notes -------------------------------------------------------------- */
.note-card .thumb { aspect-ratio: 16 / 10; }
.note-cover-fallback { width: 100%; height: 100%; display: flex; flex-direction: column; justify-content: flex-end; padding: 16px; color: #fff; background: linear-gradient(150deg, var(--c, #15803d), #0b1d3a); position: relative; overflow: hidden; }
.note-cover-fallback::before { content: ""; position: absolute; inset: 0; background-image: repeating-linear-gradient(0deg, rgba(255,255,255,.07) 0 1px, transparent 1px 22px); }
.note-cover-fallback b { position: relative; font-family: var(--font-head); font-size: 1.05rem; line-height: 1.25; }
.note-cover-fallback .ext { position: absolute; right: 12px; top: 12px; font-size: .7rem; font-weight: 800; letter-spacing: .08em; background: rgba(255,255,255,.18); padding: 3px 8px; border-radius: 6px; }
.reader { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--card); }
.reader-bar { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 10px 14px; border-bottom: 1px solid var(--border); background: var(--card-2); flex-wrap: wrap; font-size: .88rem; }
.reader iframe { width: 100%; height: min(80vh, 900px); border: 0; display: block; background: #525659; }
.reader .prose { padding: clamp(18px, 4vw, 40px); }
.reader.fullscreen { position: fixed; inset: 0; z-index: 90; border-radius: 0; }
.reader.fullscreen iframe { height: calc(100vh - 50px); }
.rating-summary { display: flex; gap: 18px; align-items: center; }
.rating-summary .big { font-size: 2.6rem; font-weight: 800; font-family: var(--font-head); line-height: 1; }

/* ---- certificate -------------------------------------------------------- */
.cert-page { padding: 32px 16px 56px; }
.cert {
  width: min(1000px, 100%); margin-inline: auto; aspect-ratio: 1.414; background: #fffdf7; color: #14231a; position: relative; overflow: hidden;
  border-radius: 10px; box-shadow: var(--shadow-lg); padding: clamp(18px, 5vw, 56px); display: flex; flex-direction: column; align-items: center; text-align: center;
  container-type: inline-size;
}
.cert::before { content: ""; position: absolute; inset: clamp(8px, 1.6vw, 16px); border: 2px solid #15803d; border-radius: 6px; pointer-events: none; }
.cert::after { content: ""; position: absolute; inset: clamp(13px, 2.3vw, 24px); border: 1px solid #84cc16; border-radius: 4px; pointer-events: none; }
.cert .c-logo { height: clamp(34px, 8cqw, 80px); width: auto; margin-bottom: 2cqw; }
.cert .c-title { font-family: var(--font-head); font-size: clamp(1.1rem, 5cqw, 3rem); letter-spacing: .12em; text-transform: uppercase; margin: 0; color: #0b1d3a; }
.cert .c-sub { font-size: clamp(.7rem, 1.8cqw, 1.05rem); color: #4f6158; margin: 1cqw 0; letter-spacing: .2em; text-transform: uppercase; }
.cert .c-name { font-family: "Playfair Display", Georgia, serif; font-size: clamp(1.4rem, 6.2cqw, 3.6rem); color: #15803d; margin: 1.6cqw 0 1cqw; border-bottom: 2px solid #84cc16; padding: 0 3cqw .6cqw; font-style: italic; }
.cert .c-text { font-size: clamp(.72rem, 1.9cqw, 1.1rem); max-width: 80%; color: #33433a; }
.cert .c-course { font-weight: 800; font-size: clamp(.9rem, 2.8cqw, 1.6rem); color: #0b1d3a; display: block; margin-top: .6cqw; }
.cert .c-foot { margin-top: auto; width: 100%; display: flex; justify-content: space-between; align-items: flex-end; gap: 3cqw; font-size: clamp(.6rem, 1.4cqw, .9rem); color: #4f6158; }
.cert .c-sign { border-top: 1px solid #14231a; padding-top: .6cqw; min-width: 24%; }
.cert .c-sign b { display: block; color: #14231a; }
.cert .c-seal { width: clamp(50px, 12cqw, 120px); height: clamp(50px, 12cqw, 120px); border-radius: 50%; background: radial-gradient(circle, #a3e635, #15803d); color: #fff; display: grid; place-items: center; font-weight: 800; font-size: clamp(.5rem, 1.5cqw, .9rem); box-shadow: 0 0 0 4px #fffdf7, 0 0 0 6px #15803d; text-transform: uppercase; letter-spacing: .06em; }
.cert-actions { display: flex; gap: 10px; justify-content: center; margin-top: 24px; flex-wrap: wrap; }
@media print {
  @page { size: A4 landscape; margin: 0; }
  body { background: #fff; }
  .nav, .footer, .announce, .cert-actions, .toasts, .no-print { display: none !important; }
  .cert-page { padding: 0; }
  .cert { width: 100vw; height: 100vh; aspect-ratio: auto; box-shadow: none; border-radius: 0; }
}

/* ---- toasts (notifications) -------------------------------------------- */
.toasts { position: fixed; right: 18px; bottom: 18px; z-index: 200; display: flex; flex-direction: column; gap: 10px; width: min(400px, calc(100vw - 32px)); pointer-events: none; }
.toast {
  pointer-events: auto; position: relative; overflow: hidden; display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: start;
  padding: 14px 14px 16px; border-radius: 16px; background: var(--card); border: 1px solid var(--border); box-shadow: var(--shadow-lg);
  animation: toastIn .5s var(--ease) both; --c: var(--info);
}
.toast.leaving { animation: toastOut .35s var(--ease) forwards; }
.toast .t-ic { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: color-mix(in srgb, var(--c) 14%, transparent); color: var(--c); }
.toast .t-ic svg { width: 18px; height: 18px; }
.toast .t-title { font-weight: 700; font-size: .92rem; margin-bottom: 2px; }
.toast .t-msg { font-size: .88rem; color: var(--muted); overflow-wrap: anywhere; }
.toast .t-msg ul { margin: 6px 0 0; padding-left: 18px; }
.toast .t-x { background: none; border: 0; color: var(--faint); cursor: pointer; font-size: 1.2rem; line-height: 1; padding: 2px 4px; border-radius: 6px; }
.toast .t-x:hover { color: var(--text); background: var(--card-2); }
.toast .t-bar { position: absolute; left: 0; bottom: 0; height: 3px; background: var(--c); width: 100%; transform-origin: left; animation: toastBar var(--dur, 6s) linear forwards; }
.toast:hover .t-bar { animation-play-state: paused; }
.toast.success { --c: var(--success); } .toast.error { --c: var(--danger); } .toast.warning { --c: var(--warning); } .toast.info { --c: var(--info); }
@keyframes toastIn { from { opacity: 0; transform: translateY(16px) scale(.96); } }
@keyframes toastOut { to { opacity: 0; transform: translateX(40px); } }
@keyframes toastBar { to { transform: scaleX(0); } }
@media (max-width: 600px) { .toasts { right: 50%; transform: translateX(50%); bottom: auto; top: calc(var(--nav-h) + 10px); } @keyframes toastIn { from { opacity: 0; transform: translateY(-16px) scale(.96); } } }

/* ---- modal / popup ------------------------------------------------------ */
.modal { position: fixed; inset: 0; z-index: 150; display: grid; place-items: center; padding: 16px; }
.modal[hidden] { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(4, 10, 8, .55); backdrop-filter: blur(4px); animation: fadeIn .3s both; }
.modal-box {
  position: relative; width: min(var(--w, 460px), 100%); max-height: calc(100vh - 32px); overflow-y: auto; background: var(--card); border-radius: 22px;
  box-shadow: var(--shadow-lg); animation: modalIn .45s var(--ease) both; border: 1px solid var(--border);
}
.modal-box.sm { --w: 400px; } .modal-box.md { --w: 560px; } .modal-box.lg { --w: 760px; }
.modal-close { position: absolute; top: 10px; right: 10px; z-index: 2; width: 36px; height: 36px; border-radius: 50%; border: 0; background: rgba(0,0,0,.45); color: #fff; cursor: pointer; font-size: 1.2rem; display: grid; place-items: center; }
.modal-close:hover { background: rgba(0,0,0,.7); }
.modal-body { padding: 24px; }
.modal-media img { width: 100%; max-height: 60vh; object-fit: cover; }
.alert-box { text-align: center; padding: 30px 24px 24px; }
.alert-box .a-ic { width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 14px; display: grid; place-items: center; font-size: 1.8rem; background: color-mix(in srgb, var(--c, var(--danger)) 14%, transparent); color: var(--c, var(--danger)); animation: pop .5s var(--ease); }
.alert-box h3 { font-size: 1.25rem; }
.alert-box ul { text-align: left; color: var(--muted); padding-left: 20px; margin: 0 0 18px; }
@keyframes fadeIn { from { opacity: 0; } }
@keyframes modalIn { from { opacity: 0; transform: translateY(20px) scale(.95); } }
body.modal-open { overflow: hidden; }

/* ---- misc --------------------------------------------------------------- */
.pagination { display: flex; gap: 6px; justify-content: center; margin-top: 44px; flex-wrap: wrap; }
.pagination a, .pagination span { min-width: 40px; height: 40px; display: grid; place-items: center; padding: 0 12px; border-radius: 12px; border: 1px solid var(--border); font-size: .9rem; background: var(--card); }
.pagination .current { background: var(--grad); color: #fff; border: 0; }
.pagination a:hover { border-color: var(--primary); color: var(--primary); }
.empty { text-align: center; padding: 60px 20px; color: var(--muted); border: 1px dashed var(--border-strong); border-radius: var(--radius); background: var(--card); }
.empty .big { font-size: 2.8rem; margin-bottom: 10px; }
.divider { height: 1px; background: var(--border); margin: 26px 0; }
.comment { display: flex; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--border); }
.comment > div:last-child { min-width: 0; }
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); transition-delay: var(--d, 0s); }
.reveal.in { opacity: 1; transform: none; }
@keyframes spin { to { transform: rotate(360deg); } }
.page-loader { position: fixed; top: 0; left: 0; height: 3px; background: var(--grad); z-index: 300; width: 0; transition: width .4s var(--ease), opacity .3s; }
.page-loader.go { width: 80%; transition: width 8s cubic-bezier(.1, .9, .2, 1); }
.newsletter { display: flex; gap: 10px; max-width: 460px; }
.newsletter input { border-radius: 999px; padding: 11px 18px; }
@media (max-width: 400px) { .newsletter { flex-direction: column; } }
.blog-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 40px; }
@media (max-width: 960px) { .blog-layout { grid-template-columns: 1fr; } }
.post-featured { display: grid; grid-template-columns: 1.2fr 1fr; }
.post-featured .thumb { aspect-ratio: auto; min-height: 300px; }
@media (max-width: 860px) { .post-featured { grid-template-columns: 1fr; } .post-featured .thumb { min-height: 200px; } }
.author-line { display: flex; gap: 12px; align-items: center; }
.cta-band { border-radius: 28px; padding: clamp(28px, 6vw, 64px); background: linear-gradient(135deg, #0b1d3a, #0c3b22 55%, #15803d); color: #fff; position: relative; overflow: hidden; isolation: isolate; text-align: center; }
.cta-band::before { content: ""; position: absolute; width: 400px; height: 400px; border-radius: 50%; background: #84cc16; filter: blur(110px); opacity: .35; right: -120px; top: -160px; z-index: -1; }
.cta-band h2 { color: #fff; font-size: clamp(1.6rem, 3.5vw, 2.5rem); }
.cta-band p { color: rgba(255,255,255,.8); }

/* ---- footer ------------------------------------------------------------- */
.footer { border-top: 1px solid var(--border); padding: 60px 0 26px; margin-top: 40px; background: var(--card); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
.footer-grid > * { min-width: 0; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-grid > :first-child { grid-column: 1 / -1; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; gap: 28px; } }
.footer .logo img { height: 46px; }
.footer h5 { font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: var(--faint); margin: 0 0 16px; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer ul a { color: var(--muted); font-size: .93rem; overflow-wrap: anywhere; } .footer ul a:hover { color: var(--primary); }
.socials { display: flex; gap: 8px; margin-top: 18px; }
.socials a { width: 40px; height: 40px; border-radius: 12px; border: 1px solid var(--border); display: grid; place-items: center; color: var(--muted); transition: .25s var(--ease); }
.socials a svg { width: 18px; height: 18px; }
.socials a:hover { border-color: var(--primary); color: #fff; background: var(--primary); transform: translateY(-3px); }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--border); color: var(--faint); font-size: .85rem; }
.to-top { position: fixed; right: 18px; bottom: 18px; z-index: 40; width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--border); background: var(--card); color: var(--text); box-shadow: var(--shadow); cursor: pointer; opacity: 0; transform: translateY(12px); transition: .3s var(--ease); pointer-events: none; }
.to-top.show { opacity: 1; transform: none; pointer-events: auto; }

/* ---- icons (Lucide, inline SVG via {% icon %}) ------------------------------
   1em square, inherits text colour. Motion is reserved for feedback: short hover
   transitions, and one-off reveals for real events (completion, certificates, new inbox). */
.icon { width: 1em; height: 1em; flex-shrink: 0; vertical-align: -.125em; overflow: visible; transition: transform .2s var(--ease), color .2s, opacity .2s; }
.icon-fill { fill: currentColor; }
.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.ic-title { display: flex; gap: 8px; align-items: center; }
.ic-title > .icon, .card-title > .icon { color: var(--primary); }
.nn-theme .ic-title > .icon { color: var(--nn); }
.btn .icon { width: 1.05em; height: 1.05em; }
.badge .icon { width: 1.05em; height: 1.05em; }
.meta .icon, .mini .icon { color: var(--faint); margin-right: 1px; }
.dropdown-menu a .icon, .dropdown-menu button .icon { width: 17px; height: 17px; color: var(--muted); }
.dropdown-menu a:hover .icon, .dropdown-menu button:hover .icon { color: var(--primary); }
.icon-btn.sm svg { width: 15px; height: 15px; }
.announce .x .icon, .modal-close .icon { width: 18px; height: 18px; }
.announce .x { display: grid; place-items: center; padding: 4px; }
.toast .t-x .icon { width: 16px; height: 16px; display: block; }
.to-top .icon { width: 18px; height: 18px; }
.slider-arrow .icon { width: 20px; height: 20px; }
.pagination .icon { width: 16px; height: 16px; }
.play span { padding-left: 0; }
.play .icon { width: 20px; height: 20px; margin-left: 3px; }
.thumb-fallback .icon, .empty .big .icon { stroke-width: 1.5; }
.thumb-fallback .icon { color: #fff; }
.empty .big { line-height: 1; color: var(--faint); }
.kpi .ki, .hero-card .hc-ic, .cert-card .medal { color: var(--primary); }
.kpi .ki, .hero-card .hc-ic, .about-ic { transition: transform .25s var(--ease); }
.about-ic { width: 52px; height: 52px; margin: 0 auto 14px; border-radius: 14px; display: grid; place-items: center; font-size: 1.45rem; background: var(--grad-soft); color: var(--primary); }
.err-ic { font-size: 3.5rem; line-height: 1; color: var(--faint); margin-bottom: 8px; }
.err-ic .icon { stroke-width: 1.5; }
.err-ic.danger { color: var(--danger); }
.cert-card .medal { display: grid; place-items: center; }
.form-alert > .icon { width: 1.15em; height: 1.15em; margin-top: .15em; color: var(--danger); }
.form-alert.info > .icon { color: var(--info); }
.form-alert.warn > .icon { color: var(--warning); }
.lesson-row .ic .icon { width: 13px; height: 13px; stroke-width: 3; }
.lesson-row .ic .icon-play { width: 10px; height: 10px; stroke-width: 2; margin-left: 1px; }
.lesson-row.locked .ic .icon { width: 12px; height: 12px; stroke-width: 2.25; }
.auth-side li span:first-child .icon { width: 18px; height: 18px; color: #bef264; }
.copy-btn { display: inline-flex; gap: 5px; align-items: center; }
.copy-btn .icon { width: 12px; height: 12px; }
.pw-toggle .icon, .icon-btn .icon { transition: transform .2s var(--ease), color .2s; }

/* hover / press feedback — pointer devices only, so taps never leave icons "stuck" mid-hover */
@media (hover: hover) {
  .icon-btn:hover > .icon { transform: scale(1.08); }
  .dropdown-menu a:hover .icon, .dropdown-menu button:hover .icon { transform: translateX(1px) scale(1.06); }
  a:hover > .icon-arrow-right, button:hover > .icon-arrow-right, .card-hover:hover .icon-arrow-right { transform: translateX(3px); }
  a:hover > .icon-arrow-left, button:hover > .icon-arrow-left { transform: translateX(-3px); }
  a:hover > .icon-arrow-up-right, button:hover > .icon-arrow-up-right { transform: translate(2px, -2px); }
  .to-top:hover .icon { transform: translateY(-2px); }
  .slider-arrow.prev:hover .icon, .pagination a:hover .icon-chevron-left { transform: translateX(-2px); }
  .slider-arrow.next:hover .icon, .pagination a:hover .icon-chevron-right { transform: translateX(2px); }
  .card-hover:hover .ki, .feature:hover .ic, .hero-card .hc-row:hover .hc-ic, .card:hover > .about-ic { transform: translateY(-2px) scale(1.05); }
  .cert-card:hover .medal .icon { transform: rotate(-6deg) scale(1.08); }
  .tabs button:hover .icon { color: var(--primary); }
}
.icon-btn:active > .icon, .pw-toggle:active .icon { transform: scale(.9); }
.tabs button .icon { margin-right: 4px; }

/* icon swap (theme, menu, password visibility) */
.i-swap { animation: icon-swap .25s var(--ease) both; }
@keyframes icon-swap { from { opacity: 0; transform: rotate(-45deg) scale(.6); } }

/* notification bell: count badge + one short shake when the unread count goes up */
.bell { position: relative; }
.bell-count {
  position: absolute; top: -5px; right: -5px; min-width: 18px; height: 18px; padding: 0 5px; border-radius: 99px;
  background: var(--danger); color: #fff; font-size: .66rem; font-weight: 700; line-height: 18px; text-align: center; box-shadow: 0 0 0 2px var(--bg);
}
.bell.ring > .icon { transform-origin: 50% 2px; animation: bell-ring .65s var(--ease) .3s 1; }
@keyframes bell-ring { 15% { transform: rotate(14deg); } 30% { transform: rotate(-12deg); } 45% { transform: rotate(8deg); } 60% { transform: rotate(-5deg); } 75% { transform: rotate(2deg); } }

/* one-time reveals ([data-once] → .is-new, added by main.js the first time it's seen) */
.await-reveal .i-check > * { stroke-dasharray: 64; stroke-dashoffset: 64; }
.await-reveal.done-hero .big, .await-reveal.lesson-row .ic, .await-reveal .medal .icon, .await-reveal .i-medal, .await-reveal .c-seal { opacity: 0; }
.is-new .i-check > * { stroke-dasharray: 64; stroke-dashoffset: 64; animation: icon-draw .45s var(--ease) .15s forwards; }
.is-new .i-check > path:not(:only-child) { animation-delay: .4s; animation-duration: .3s; }
.done-hero.is-new .big { animation: pop .5s var(--ease); }
.lesson-row.is-new .ic { animation: pop .4s var(--ease) both; }
.cert-card.is-new .medal .icon, .form-alert.is-new .i-medal, .cert.is-new .c-seal { animation: medal-in .55s var(--ease) .15s both; }
@keyframes icon-draw { to { stroke-dashoffset: 0; } }
@keyframes medal-in { from { opacity: 0; transform: scale(.6) rotate(-14deg); } }

/* loading spinner inside the instant-save switches (admin lists) */
.switch.busy span::after {
  content: ""; position: absolute; inset: 4px; background: var(--muted);
  -webkit-mask: var(--i-loader) center / contain no-repeat; mask: var(--i-loader) center / contain no-repeat; animation: spin .8s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
  /* no hover movement on icons; colour changes still give feedback */
  .icon, .kpi .ki, .feature .ic, .hero-card .hc-ic, .about-ic { transform: none !important; }
  /* a loading indicator is functional, so it keeps turning — slowly */
  .btn.is-loading::after, .switch.busy span::after { animation-duration: 1.6s !important; animation-iteration-count: infinite !important; }
}

/* code-window visual (services hero) */
.code-window { background: #0b1220; border: 1px solid var(--border-strong); border-radius: 18px; box-shadow: var(--shadow-lg); overflow: hidden; min-width: 0; }
.code-window .bar { display: flex; gap: 7px; padding: 14px 16px; border-bottom: 1px solid rgba(255,255,255,.08); align-items: center; }
.code-window .bar i { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; }
.code-window .bar i:nth-child(2) { background: #febc2e; } .code-window .bar i:nth-child(3) { background: #28c840; }
.code-window .bar span { margin-left: 10px; color: #7d8aa5; font-size: .8rem; font-family: var(--mono); }
.code-window pre { margin: 0; padding: 22px; font-size: .86rem; line-height: 1.75; overflow-x: auto; color: #c9d6f5; }
.tk-k { color: #c792ea; } .tk-f { color: #82aaff; } .tk-s { color: #c3e88d; } .tk-c { color: #697098; font-style: italic; } .tk-n { color: #f78c6c; }