/* ==========================================================
   Shivmallhar Coaching Classes — design tokens
   8px grid · 1.25 type scale · 4 premium palettes (data-theme)
   Default: royal (Royal Ink + Antique Gold)
   ========================================================== */
:root, :root[data-theme="royal"] {
  --ink-950: #070b18; --ink-900: #0c1226; --ink-800: #151d38; --ink-700: #222c50;
  --ink-rgb: 12 18 38; --ink-deep-rgb: 7 11 24; --shadow-rgb: 3 5 14; --glow-rgb: 59 79 154;
  --jade: #3b4f9a;
  --accent: #c9a45c; --accent-rgb: 201 164 92; --accent-hi: #f1dfb0; --accent-lo: #a8813c;
  --accent-light: #ecd9ab; --accent-deep: #8a6a2c; --accent-soft: #efe4c9; --accent-shadow-rgb: 110 80 20;
  --cream: #f6f2ea; --paper: #fcfaf6; --paper-rgb: 252 250 246;
  --body: #3c4256; --muted: #6c7186;
  --on-dark: #f5f0e6; --on-dark-rgb: 245 240 230;
}
:root[data-theme="maroon"] {
  --ink-950: #1a0609; --ink-900: #2a0b11; --ink-800: #3b1219; --ink-700: #561c26;
  --ink-rgb: 42 11 17; --ink-deep-rgb: 26 6 9; --shadow-rgb: 14 2 4; --glow-rgb: 140 44 58;
  --jade: #7a2a36;
  --accent: #d1a865; --accent-rgb: 209 168 101; --accent-hi: #f3dfb4; --accent-lo: #ad8240;
  --accent-light: #f0dcb2; --accent-deep: #8c6526; --accent-soft: #f2e5cc; --accent-shadow-rgb: 110 70 20;
  --cream: #f8f2e9; --paper: #fdf9f3; --paper-rgb: 253 249 243;
  --body: #4a3b3d; --muted: #7d6c6e;
  --on-dark: #f8efe4; --on-dark-rgb: 248 239 228;
}
:root[data-theme="emerald"] {
  --ink-950: #061a16; --ink-900: #0b2621; --ink-800: #12352e; --ink-700: #1b4a40;
  --ink-rgb: 11 38 33; --ink-deep-rgb: 6 26 22; --shadow-rgb: 3 14 11; --glow-rgb: 47 125 107;
  --jade: #2f7d6b;
  --accent: #dcb46c; --accent-rgb: 220 180 108; --accent-hi: #f4dfaa; --accent-lo: #b98a3e;
  --accent-light: #f0dcaa; --accent-deep: #8a6420; --accent-soft: #f3e6c8; --accent-shadow-rgb: 110 80 20;
  --cream: #f7f3ea; --paper: #fdfbf6; --paper-rgb: 253 251 246;
  --body: #3b4a45; --muted: #6b7a74;
  --on-dark: #f5f0e4; --on-dark-rgb: 245 240 228;
}
:root[data-theme="noir"] {
  --ink-950: #0d0c0b; --ink-900: #171513; --ink-800: #221f1c; --ink-700: #35312c;
  --ink-rgb: 23 21 19; --ink-deep-rgb: 13 12 11; --shadow-rgb: 6 5 4; --glow-rgb: 120 84 46;
  --jade: #6b5640;
  --accent: #e39b45; --accent-rgb: 227 155 69; --accent-hi: #f7cf98; --accent-lo: #c27a28;
  --accent-light: #f6d3a4; --accent-deep: #94540f; --accent-soft: #f6e4cd; --accent-shadow-rgb: 120 60 0;
  --cream: #f4f0ea; --paper: #fbf9f6; --paper-rgb: 251 249 246;
  --body: #403b36; --muted: #78716a;
  --on-dark: #f6f1ea; --on-dark-rgb: 246 241 234;
}
:root {
  --heading: var(--ink-900);
  --line: rgb(var(--ink-rgb) / 0.1);
  --on-dark-muted: rgb(var(--on-dark-rgb) / 0.72);
  --line-dark: rgb(var(--on-dark-rgb) / 0.14);

  --s1: 8px; --s2: 16px; --s3: 24px; --s4: 32px; --s5: 40px;
  --s6: 48px; --s8: 64px; --s10: 80px; --s12: 96px; --s16: 128px;

  --t-xs: 0.8rem;     /* 12.8 */
  --t-sm: 1rem;       /* 16   */
  --t-md: 1.25rem;    /* 20   */
  --t-lg: 1.5625rem;  /* 25   */
  --t-xl: 1.953rem;   /* 31.25*/
  --t-2xl: 2.441rem;  /* 39   */
  --t-3xl: 3.052rem;  /* 48.8 */
  --t-4xl: 3.815rem;  /* 61   */
  --t-5xl: 4.768rem;  /* 76.3 */

  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --deva: "Tiro Devanagari Marathi", "Noto Sans Devanagari", serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --r-sm: 12px; --r-md: 16px; --r-lg: 24px; --r-xl: 32px;
  --sh-1: 0 1px 2px rgb(var(--ink-rgb) / 0.06), 0 4px 12px rgb(var(--ink-rgb) / 0.06);
  --sh-2: 0 2px 4px rgb(var(--ink-rgb) / 0.06), 0 12px 32px rgb(var(--ink-rgb) / 0.1);
  --sh-3: 0 4px 8px rgb(var(--ink-deep-rgb) / 0.12), 0 24px 64px rgb(var(--ink-deep-rgb) / 0.24);
  --sh-accent: 0 1px 2px rgb(var(--accent-shadow-rgb) / 0.2), 0 8px 24px rgb(var(--accent-rgb) / 0.28);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --nav-h: 72px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + var(--s2)); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 400 var(--t-sm)/1.65 var(--sans);
  color: var(--body);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, video, svg { display: block; max-width: 100%; }
img, video { height: auto; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; color: var(--heading); font-weight: 600; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input, select { font: inherit; color: inherit; }
::selection { background: var(--accent); color: var(--ink-900); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.container { width: 100%; max-width: 1216px; margin-inline: auto; padding-inline: var(--s2); }
@media (min-width: 640px) { .container { padding-inline: var(--s3); } }
@media (min-width: 1024px) { .container { padding-inline: var(--s4); } }

.skip { position: fixed; left: var(--s2); top: -64px; z-index: 100; padding: var(--s1) var(--s2); background: var(--accent); color: var(--ink-900); border-radius: var(--r-sm); font-weight: 700; transition: top 0.2s; }
.skip:focus { top: var(--s2); }

.progress { position: fixed; inset: 0 0 auto; height: 3px; z-index: 60; background: var(--accent); transform-origin: 0 50%; transform: scaleX(var(--p, 0)); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s1);
  min-height: 48px; padding: 0 var(--s3);
  border: 1px solid transparent; border-radius: 999px;
  font-weight: 600; font-size: var(--t-sm); line-height: 1; white-space: nowrap;
  cursor: pointer; background: none;
  transition: transform 180ms var(--ease), box-shadow 180ms var(--ease), background-color 180ms var(--ease), border-color 180ms var(--ease), color 180ms var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: scale(0.98); }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; transform: none; }
.btn--sm { min-height: 44px; padding: 0 var(--s2); }
.btn--block { width: 100%; min-height: 56px; }
.btn--accent { background: var(--accent); color: var(--ink-900); box-shadow: var(--sh-accent); }
.btn--accent:hover { background: var(--accent-hi); box-shadow: 0 2px 4px rgb(var(--accent-shadow-rgb) / 0.2), 0 16px 32px rgb(var(--accent-rgb) / 0.36); }
.btn--ghost { border-color: var(--line-dark); color: var(--on-dark); }
.btn--ghost:hover { background: rgb(var(--on-dark-rgb) / 0.08); border-color: rgb(var(--on-dark-rgb) / 0.32); }
.btn--ink { background: var(--ink-900); color: var(--on-dark); box-shadow: var(--sh-1); }
.btn--ink:hover { background: var(--ink-800); box-shadow: var(--sh-2); }
.ico { width: 20px; height: 20px; fill: currentColor; }

.link { display: inline-flex; align-items: center; gap: var(--s1); min-height: 44px; font-weight: 600; color: var(--heading); }
.link span { transition: transform 180ms var(--ease); }
.link:hover span { transform: translateX(4px); }

.stars { color: var(--accent); letter-spacing: 0.08em; font-size: var(--t-sm); }
.stars i { font-style: normal; opacity: 0.3; }
.stars--lg { font-size: var(--t-md); }

/* ---------- Topbar ---------- */
.topbar { background: var(--ink-950); color: var(--accent-light); border-bottom: 1px solid var(--line-dark); overflow: hidden; font-size: var(--t-xs); font-weight: 600; letter-spacing: 0.02em; }
.topbar__track { display: flex; width: max-content; animation: marquee 40s linear infinite; }
.topbar p { padding: var(--s1) 0; white-space: nowrap; }
.topbar span { margin-inline: var(--s2); opacity: 0.6; }

/* ---------- Header ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgb(var(--ink-rgb) / 0.82);
  backdrop-filter: saturate(160%) blur(16px); -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms, background-color 200ms;
}
.nav.is-scrolled { background: rgb(var(--ink-deep-rgb) / 0.92); border-bottom-color: var(--line-dark); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--s3); height: var(--nav-h); }
.brand { display: inline-flex; align-items: center; gap: var(--s1); color: var(--on-dark); min-height: 44px; }
.brand__mark { width: 40px; height: 40px; flex: none; }
.brand__text { display: grid; line-height: 1.15; }
.brand__text strong { font-family: var(--serif); font-size: var(--t-md); font-weight: 600; letter-spacing: -0.01em; }
.brand__text small { font-size: 11px; color: var(--on-dark-muted); letter-spacing: 0.06em; text-transform: uppercase; }
.nav__links { display: none; gap: var(--s4); }
.nav__links a { position: relative; color: var(--on-dark-muted); font-size: 15px; font-weight: 500; padding: var(--s1) 0; transition: color 180ms; }
.nav__links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 2px; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform 240ms var(--ease); }
.nav__links a:hover, .nav__links a.is-active { color: var(--on-dark); }
.nav__links a:hover::after, .nav__links a.is-active::after { transform: scaleX(1); }
.nav__cta { display: flex; align-items: center; gap: var(--s2); }
.nav__phone { display: none; align-items: center; gap: var(--s1); color: var(--on-dark); font-weight: 600; font-size: 15px; min-height: 44px; }
.nav__phone svg { width: 18px; height: 18px; fill: var(--accent); }
.burger { display: grid; place-content: center; gap: 6px; width: 44px; height: 44px; border: 1px solid var(--line-dark); border-radius: 50%; background: none; cursor: pointer; transition: background-color 180ms; }
.burger:hover { background: rgb(var(--on-dark-rgb) / 0.08); }
.burger span { display: block; width: 18px; height: 2px; background: var(--on-dark); border-radius: 2px; transition: transform 240ms var(--ease); }
.burger[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.burger[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
.menu { display: grid; gap: var(--s1); padding: var(--s2) var(--s2) var(--s4); background: var(--ink-950); border-top: 1px solid var(--line-dark); max-height: calc(100svh - var(--nav-h)); overflow-y: auto; }
.menu:not([hidden]) { animation: menuIn 300ms var(--ease); }
.menu > a { display: flex; align-items: center; min-height: 56px; padding: 0 var(--s1); color: var(--on-dark); font-family: var(--serif); font-size: var(--t-lg); border-bottom: 1px solid var(--line-dark); }
.menu__cta { display: grid; gap: var(--s2); margin-top: var(--s3); }
@keyframes menuIn { from { opacity: 0; transform: translateY(-8px); } }

@media (min-width: 1024px) {
  .nav__links { display: flex; }
  .burger, .menu { display: none !important; }
}
@media (min-width: 1180px) { .nav__phone { display: inline-flex; } }
@media (max-width: 420px) { .nav__cta .btn--sm { display: none; } }

/* ---------- Hero (full-bleed cinematic video) ---------- */
.hero { position: relative; overflow: hidden; min-height: calc(100svh - var(--nav-h) - 32px); display: flex; flex-direction: column; justify-content: flex-end; background: var(--ink-950); color: var(--on-dark-muted); padding: var(--s16) 0 var(--s4); isolation: isolate; }
.hero__media { position: absolute; inset: 0; z-index: -2; background: var(--ink-900) url("https://images.pexels.com/videos/32498241/4k-4k-footage-active-kids-back-to-school-32498241.jpeg?auto=compress&cs=tinysrgb&w=1000") center / cover; }
.hero__video { width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 1200ms var(--ease); animation: kenburns 24s ease-out both; }
.hero__video.is-playing { opacity: 1; }
.hero__bg { position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(180deg, rgb(var(--ink-deep-rgb) / 0.45) 0%, rgb(var(--ink-deep-rgb) / 0.2) 18%, rgb(var(--ink-deep-rgb) / 0.78) 38%, rgb(var(--ink-deep-rgb) / 0.94) 55%, var(--ink-950) 100%),
    radial-gradient(600px 400px at 85% 10%, rgb(var(--accent-rgb) / 0.16), transparent 70%);
}
.hero__bg::after { content: ""; position: absolute; inset: 0; opacity: 0.1; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.hero__grid { display: grid; gap: var(--s5); align-items: end; }

.pill { display: inline-flex; align-items: center; gap: var(--s1); padding: 6px var(--s2) 6px 12px; border: 1px solid rgb(var(--accent-rgb) / 0.4); border-radius: 999px; background: rgb(var(--ink-deep-rgb) / 0.45); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); color: var(--accent-light); font-size: var(--t-xs); font-weight: 600; letter-spacing: 0.04em; animation: fadeUp 700ms var(--ease) both; }
.pill__dot { width: 8px; height: 8px; border-radius: 50%; background: #4ade80; box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6); animation: ping 2s infinite; }
.hero__mr { display: flex; align-items: center; gap: var(--s2); margin-top: var(--s3); font-family: var(--deva); font-size: var(--t-md); color: var(--accent); animation: fadeUp 700ms 100ms var(--ease) both; }
.hero__mr::after { content: ""; flex: 0 1 96px; height: 1px; background: linear-gradient(90deg, rgb(var(--accent-rgb) / 0.7), transparent); }
.hero__title { margin-top: var(--s2); font-family: var(--serif); font-weight: 400; color: var(--on-dark); font-size: clamp(var(--t-3xl), 9vw, 6.5rem); line-height: 0.96; letter-spacing: -0.035em; font-variation-settings: "opsz" 144; text-shadow: 0 2px 32px rgb(var(--shadow-rgb) / 0.5); }
.hero__title .line { display: block; overflow: hidden; padding-bottom: 0.08em; }
.hero__title .line > span { display: inline-block; animation: lineUp 1000ms var(--ease) both; }
.hero__title .line:nth-child(2) > span { animation-delay: 140ms; }
.hero__title .line:nth-child(3) > span { animation-delay: 280ms; }
.hero__title em { display: inline-block; padding-right: 0.1em; font-style: italic; font-weight: 300; text-shadow: none; background: linear-gradient(100deg, var(--accent-lo) 0%, var(--accent-hi) 30%, var(--accent) 50%, var(--accent-hi) 70%, var(--accent-lo) 100%) 0 0 / 200% auto; -webkit-background-clip: text; background-clip: text; color: transparent; animation: shimmer 7s linear infinite; }
.hero__lead { margin-top: var(--s3); max-width: 36rem; font-size: var(--t-md); line-height: 1.65; color: rgb(var(--on-dark-rgb) / 0.85); animation: fadeUp 800ms 400ms var(--ease) both; }
.hero__lead strong { color: var(--on-dark); font-weight: 600; }
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--s2); margin-top: var(--s4); animation: fadeUp 800ms 500ms var(--ease) both; }
.hero .btn--ghost { background: rgb(var(--ink-deep-rgb) / 0.35); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.proofline { display: flex; align-items: center; gap: var(--s2); margin-top: var(--s4); font-size: 14px; line-height: 1.4; animation: fadeUp 800ms 600ms var(--ease) both; }
.proofline__faces { display: flex; }
.proofline__faces i { display: grid; place-items: center; width: 36px; height: 36px; margin-left: -10px; border: 2px solid var(--ink-950); border-radius: 50%; background: hsl(var(--h) 38% 42%); color: #fff; font: 600 14px var(--sans); font-style: normal; }
.proofline__faces i:first-child { margin-left: 0; }

.hero__aside { display: none; position: relative; }
[data-parallax] > [style*="--depth"] { translate: calc(var(--px, 0) * var(--depth) * 14px) calc(var(--py, 0) * var(--depth) * 14px); transition: translate 600ms var(--ease); }
.float-review { position: relative; z-index: 2; width: 320px; margin: 0 0 0 auto; padding: var(--s3); background: rgb(var(--paper-rgb) / 0.1); backdrop-filter: blur(20px) saturate(140%); -webkit-backdrop-filter: blur(20px) saturate(140%); border: 1px solid rgb(var(--on-dark-rgb) / 0.18); border-radius: var(--r-lg); box-shadow: 0 2px 4px rgb(var(--shadow-rgb) / 0.2), 0 24px 56px rgb(var(--shadow-rgb) / 0.4); animation: fadeUp 900ms 800ms var(--ease) both; }
.float-review blockquote { margin: var(--s1) 0; font-family: var(--serif); font-size: var(--t-md); line-height: 1.4; color: var(--on-dark); }
.float-review figcaption { font-size: 12.8px; color: var(--on-dark-muted); }
.seal { position: absolute; z-index: 3; width: 108px; height: 108px; display: grid; place-items: center; border-radius: 50%; background: radial-gradient(circle at 30% 25%, var(--accent-hi), var(--accent) 55%, var(--accent-lo)); color: var(--ink-900); box-shadow: var(--sh-accent); }
.hero__aside .seal { right: 260px; top: -64px; }
.seal svg { position: absolute; inset: 0; width: 100%; height: 100%; animation: spin 24s linear infinite; }
.seal text { font: 700 10.5px var(--sans); letter-spacing: 0.12em; fill: var(--ink-900); }
.seal > span { font-family: var(--serif); font-size: var(--t-lg); font-weight: 600; }

.hero__toggle { position: absolute; z-index: 2; right: var(--s2); top: var(--s2); display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid var(--line-dark); border-radius: 50%; background: rgb(var(--ink-deep-rgb) / 0.4); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); color: var(--on-dark); cursor: pointer; transition: background-color 180ms, transform 180ms var(--ease); }
.hero__toggle:hover { background: rgb(var(--ink-deep-rgb) / 0.7); }
.hero__toggle:active { transform: scale(0.96); }
.hero__toggle svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.hero__toggle .i-play, .hero__toggle[aria-pressed="true"] .i-pause { display: none; }
.hero__toggle[aria-pressed="true"] .i-play { display: block; }

.hero__bar { display: grid; grid-template-columns: repeat(2, 1fr); margin-top: var(--s6); border: 1px solid var(--line-dark); border-radius: var(--r-lg); background: rgb(var(--on-dark-rgb) / 0.05); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); animation: fadeUp 900ms 700ms var(--ease) both; }
.hero__bar li { padding: var(--s3) var(--s2); text-align: center; }
.hero__bar li:nth-child(odd) { border-right: 1px solid var(--line-dark); }
.hero__bar li:nth-child(-n+2) { border-bottom: 1px solid var(--line-dark); }
.hero__bar strong { display: block; font: 400 var(--t-2xl)/1 var(--serif); color: var(--on-dark); letter-spacing: -0.02em; }
.hero__bar small { font-size: 0.5em; color: var(--accent); margin-left: 2px; }
.hero__bar li > span { display: block; margin-top: var(--s1); font-size: 13px; }

.band__video, .coding__video video { width: 100%; height: 100%; object-fit: cover; }

@media (max-width: 639px) {
  .hero { padding-top: 34svh; }
  .themer span { display: none; }
  .hero__cta .btn { flex: 1 1 100%; }
}
@media (min-width: 768px) {
  .hero__bar { grid-template-columns: repeat(4, 1fr); }
  .hero__bar li { border-bottom: 0 !important; border-right: 1px solid var(--line-dark); padding: var(--s4) var(--s3); }
  .hero__bar li:last-child { border-right: 0; }
}
@media (min-width: 960px) {
  .hero { padding: var(--s10) 0 var(--s5); }
  /* Desktop: landscape video fills the whole hero; a left-weighted scrim keeps the copy readable */
  .hero__media { background-image: url("https://images.pexels.com/videos/31454464/bangladeshi-school-classroom-in-bangladesh-ground-footage-karnaphuli-chattogram-31454464.jpeg?auto=compress&cs=tinysrgb&w=1600"); }
  .hero__bg { background:
    linear-gradient(90deg, rgb(var(--ink-deep-rgb) / 0.94) 0%, rgb(var(--ink-deep-rgb) / 0.84) 38%, rgb(var(--ink-deep-rgb) / 0.42) 60%, rgb(var(--ink-deep-rgb) / 0.12) 82%, rgb(var(--ink-deep-rgb) / 0.3) 100%),
    linear-gradient(180deg, rgb(var(--ink-deep-rgb) / 0.55) 0%, transparent 20%, transparent 58%, var(--ink-950) 100%); }
  .hero__title { font-size: clamp(var(--t-4xl), 6.4vw, 6rem); }
  .hero__grid { grid-template-columns: 1.25fr 0.75fr; gap: var(--s6); }
  .hero__aside { display: block; }
  .hero__toggle { right: var(--s4); top: var(--s4); }
}

.btn--accent { position: relative; overflow: hidden; background: linear-gradient(180deg, var(--accent-hi), var(--accent)); color: var(--ink-950); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5), var(--sh-accent); }
.btn--accent::after { content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.55) 50%, transparent 70%); transform: translateX(-120%); transition: transform 700ms var(--ease); }
.btn--accent:hover { background: linear-gradient(180deg, var(--accent-hi), var(--accent-hi)); }
.btn--accent:hover::after { transform: translateX(120%); }
.btn--lg { min-height: 56px; padding: 0 var(--s4); font-size: 17px; }
@keyframes shimmer { to { background-position: -200% 0; } }
@keyframes kenburns { from { transform: scale(1.12); } to { transform: scale(1); } }

/* brand mark follows the theme */
.bm-bg { fill: var(--accent); }
.bm-arch { stroke: var(--ink-900); }
.bm-s { fill: var(--ink-900); }

/* demo-only palette switcher (shown with ?themes or ?theme=) */
.themer { position: fixed; z-index: 45; left: var(--s2); bottom: calc(88px + env(safe-area-inset-bottom)); display: flex; align-items: center; gap: 6px; padding: 6px; border: 1px solid var(--line-dark); border-radius: 999px; background: rgb(var(--ink-deep-rgb) / 0.85); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); box-shadow: var(--sh-3); }
.themer[hidden] { display: none; }
.themer span { padding: 0 var(--s1); color: var(--on-dark-muted); font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }
.themer button { display: flex; align-items: center; gap: 6px; min-height: 36px; padding: 0 12px 0 6px; border: 1px solid transparent; border-radius: 999px; background: none; color: var(--on-dark); font-size: 13px; font-weight: 600; cursor: pointer; transition: background-color 180ms, border-color 180ms; }
.themer button:hover { background: rgb(var(--on-dark-rgb) / 0.08); }
.themer button[aria-pressed="true"] { border-color: var(--accent); background: rgb(var(--accent-rgb) / 0.14); }
.themer i { width: 22px; height: 22px; border-radius: 50%; background: linear-gradient(135deg, var(--a) 50%, var(--b) 50%); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2); }
@media (min-width: 768px) { .themer { left: auto; right: 100px; bottom: var(--s3); } }
@media (max-width: 480px) { .themer button b { display: none; } .themer button { padding: 0 6px; } }

/* ---------- Strip ---------- */
.strip { background: var(--ink-950); color: var(--on-dark); overflow: hidden; border-top: 1px solid var(--line-dark); }
.strip__track { display: flex; width: max-content; animation: marquee 50s linear infinite; }
.strip p { padding: var(--s3) 0; white-space: nowrap; font-family: var(--serif); font-size: var(--t-lg); font-style: italic; }
.strip i { margin-inline: var(--s3); color: var(--accent); font-style: normal; font-size: var(--t-sm); vertical-align: middle; }
.strip span[lang="mr"] { font-family: var(--deva); font-style: normal; }

/* ---------- Section shell ---------- */
.section { padding: clamp(var(--s10), 10vw, var(--s16)) 0; }
.head { max-width: 46rem; margin: 0 auto var(--s8); text-align: center; }
.head--left { margin: 0 0 var(--s6); text-align: left; }
.eyebrow { display: inline-flex; align-items: center; gap: var(--s1); font-size: var(--t-xs); font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent-deep); }
.eyebrow::before { content: ""; width: 24px; height: 1px; background: currentColor; }
.eyebrow--light { color: var(--accent); }
.head h2, .coding h2, .contact h2 { margin-top: var(--s2); font-family: var(--serif); font-weight: 500; font-size: clamp(var(--t-2xl), 5.2vw, var(--t-4xl)); line-height: 1.05; letter-spacing: -0.025em; }
.head h2 em, .coding h2 em, .contact h2 em { font-style: italic; font-weight: 400; color: var(--accent-deep); }
.head__lead { margin-top: var(--s2); font-size: var(--t-md); line-height: 1.6; color: var(--body); }

/* ---------- Bento ---------- */
.bento { display: grid; gap: var(--s2); }
.card { position: relative; padding: var(--s4); background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: var(--sh-1); overflow: hidden; transition: transform 240ms var(--ease), box-shadow 240ms var(--ease); }
.card::before { content: ""; position: absolute; inset: 0; background: radial-gradient(320px circle at var(--mx, 50%) var(--my, -20%), rgb(var(--accent-rgb) / 0.14), transparent 60%); opacity: 0; transition: opacity 240ms; pointer-events: none; }
.card:hover { transform: translateY(-4px); box-shadow: var(--sh-2); }
.card:hover::before { opacity: 1; }
.card h3 { margin-top: var(--s3); font-size: var(--t-md); letter-spacing: -0.01em; }
.card p { margin-top: var(--s1); color: var(--body); }
.card p strong { color: var(--heading); }
.card__icon { display: grid; place-items: center; width: 48px; height: 48px; flex: none; border-radius: var(--r-sm); background: var(--accent-soft); }
.card__icon svg { width: 24px; height: 24px; fill: none; stroke: var(--ink-900); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.card--feature { min-height: 400px; padding: 0; display: flex; align-items: flex-end; background: var(--ink-900); border: 0; }
.card--feature img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 900ms var(--ease); }
.card--feature:hover img { transform: scale(1.04); }
.card--feature::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgb(var(--ink-deep-rgb) / 0.1) 0%, rgb(var(--ink-deep-rgb) / 0.92) 75%); }
.card--feature__body { position: relative; z-index: 1; padding: var(--s4); }
.card--feature h3 { margin-top: var(--s2); font-family: var(--serif); font-weight: 500; font-size: var(--t-xl); color: var(--on-dark); }
.card--feature p { color: var(--on-dark-muted); max-width: 30rem; }
.card--feature p strong { color: var(--accent); font-weight: 600; }
.tag { display: inline-flex; padding: 6px 12px; border-radius: 999px; font-size: var(--t-xs); font-weight: 600; }
.tag--glass { background: rgb(var(--on-dark-rgb) / 0.12); border: 1px solid var(--line-dark); color: var(--on-dark); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }

@media (min-width: 640px) {
  .bento { grid-template-columns: repeat(2, 1fr); }
  .card--feature { grid-column: span 2; }
}
@media (min-width: 1024px) {
  .bento { grid-template-columns: repeat(3, 1fr); gap: var(--s3); }
  .card--feature { grid-column: span 2; grid-row: span 2; min-height: 100%; }
}

/* ---------- Method ---------- */
.method { background: var(--paper); }
.method__grid { display: grid; gap: var(--s8); }
.proof { padding: var(--s4); border-radius: var(--r-xl); background: radial-gradient(400px 300px at 100% 0%, rgb(var(--accent-rgb) / 0.16), transparent 70%), var(--ink-900); color: var(--on-dark); box-shadow: var(--sh-3); }
.proof__top { display: flex; align-items: center; justify-content: space-between; gap: var(--s2); }
.proof__replay { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 0 var(--s2); border: 1px solid var(--line-dark); border-radius: 999px; background: none; color: var(--on-dark); font-size: 14px; font-weight: 600; cursor: pointer; transition: background-color 180ms, transform 180ms var(--ease); }
.proof__replay:hover { background: rgb(var(--on-dark-rgb) / 0.08); }
.proof__replay:active { transform: scale(0.98); }
.proof__replay svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.proof__title { margin-top: var(--s2); font-family: var(--serif); font-weight: 500; font-size: var(--t-lg); color: var(--on-dark); }
.proof__svg { width: 100%; max-width: 360px; margin: var(--s3) auto 0; overflow: visible; }
.proof__axis line { stroke: var(--accent); stroke-width: 2; stroke-linecap: round; }
.proof__axis text { fill: var(--accent); font: italic 600 18px var(--serif); text-anchor: middle; }
.piece { opacity: 0; transform-box: fill-box; transform-origin: center; }
.piece rect { stroke: var(--ink-900); stroke-width: 3; }
.piece text { font: italic 600 26px var(--serif); text-anchor: middle; dominant-baseline: middle; }
.p-a { fill: var(--jade); } .p-a + text { fill: var(--on-dark); }
.p-ab { fill: var(--accent-soft); } .p-ab + text { fill: var(--ink-900); }
.p-b { fill: var(--accent); } .p-b + text { fill: var(--ink-900); }
.proof__eq { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; margin-top: var(--s3); font: italic 500 var(--t-md) var(--serif); }
.proof__eq span { opacity: 0; }
.proof__final { margin-top: var(--s1); text-align: center; font: 500 var(--t-xl) var(--serif); color: var(--on-dark); opacity: 0; }
.proof__final mark { background: none; color: var(--accent); font-style: italic; }
.proof.is-on .piece { animation: pieceIn 800ms var(--ease) both; animation-delay: calc(300ms + var(--i) * 600ms); }
.proof.is-on .proof__eq span { animation: fadeUp 500ms var(--ease) both; animation-delay: calc(500ms + var(--i) * 600ms); }
.proof.is-on .proof__final { animation: fadeUp 700ms 3000ms var(--ease) both; }
@keyframes pieceIn { from { opacity: 0; transform: translate(var(--fx), var(--fy)) scale(0.8); } to { opacity: 1; transform: none; } }

.steps { display: grid; }
.step { display: grid; grid-template-columns: 56px 1fr; gap: var(--s2); padding: var(--s3) 0; border-top: 1px solid var(--line); }
.step:last-child { border-bottom: 1px solid var(--line); }
.step__no { font-family: var(--serif); font-size: var(--t-xl); font-style: italic; color: var(--accent-deep); line-height: 1; }
.step h3 { font-family: var(--serif); font-weight: 500; font-size: var(--t-lg); }
.step p { margin-top: var(--s1); }

@media (min-width: 960px) {
  .method__grid { grid-template-columns: 1fr 1fr; gap: var(--s12); align-items: start; }
  .method__visual { position: sticky; top: calc(var(--nav-h) + var(--s4)); order: 0; }
}

/* ---------- Video band ---------- */
.band { position: relative; display: grid; place-items: center; min-height: 520px; overflow: hidden; background: var(--ink-950) url("https://assets.mixkit.co/videos/4619/4619-thumb-720-0.jpg") center / cover; isolation: isolate; }
.band__video { position: absolute; inset: 0; z-index: -2; }
.band::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgb(var(--ink-deep-rgb) / 0.78), rgb(var(--ink-deep-rgb) / 0.88)); }
.band__inner { text-align: center; padding-block: var(--s12); }
.band blockquote { max-width: 52rem; margin: var(--s3) auto 0; font-family: var(--serif); font-style: italic; font-weight: 400; font-size: clamp(var(--t-xl), 4.4vw, var(--t-3xl)); line-height: 1.2; color: var(--on-dark); letter-spacing: -0.015em; }
.band__cite { margin-top: var(--s3); color: var(--on-dark-muted); font-size: 14px; letter-spacing: 0.08em; text-transform: uppercase; }

/* ---------- Courses ---------- */
.courses__rail { display: grid; grid-auto-flow: column; grid-auto-columns: 85%; gap: var(--s2); overflow-x: auto; scroll-snap-type: x mandatory; padding: var(--s1) var(--s2) var(--s3); margin-inline: calc(var(--s2) * -1); scrollbar-width: none; }
.courses__rail::-webkit-scrollbar { display: none; }
.course { scroll-snap-align: center; display: flex; flex-direction: column; background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--sh-1); transition: transform 240ms var(--ease), box-shadow 240ms var(--ease); }
.course:hover { transform: translateY(-6px); box-shadow: var(--sh-2); }
.course__media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--ink-800); }
.course__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 900ms var(--ease); }
.course:hover .course__media img { transform: scale(1.06); }
.course__std { position: absolute; left: var(--s2); bottom: var(--s2); padding: 6px 12px; border-radius: 999px; background: var(--paper); color: var(--heading); font-size: 14px; font-weight: 700; box-shadow: var(--sh-1); }
.course__flag { position: absolute; right: var(--s2); top: var(--s2); padding: 6px 12px; border-radius: 999px; background: var(--accent); color: var(--ink-900); font-size: var(--t-xs); font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.course__body { display: flex; flex-direction: column; flex: 1; padding: var(--s3); }
.course h3 { font-family: var(--serif); font-weight: 500; font-size: var(--t-xl); }
.course__body > p { margin-top: var(--s1); }
.checks { display: grid; gap: var(--s1); margin: var(--s2) 0 var(--s2); }
.checks li { position: relative; padding-left: 28px; font-size: 15px; color: var(--heading); }
.checks li::before { content: ""; position: absolute; left: 0; top: 4px; width: 18px; height: 18px; border-radius: 50%; background: var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230b2621' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 12 4 4 8-8'/%3E%3C/svg%3E") center / 12px no-repeat; }
.course .link { margin-top: auto; }
.course--hl { border-color: rgb(var(--accent-rgb) / 0.6); box-shadow: 0 0 0 1px rgb(var(--accent-rgb) / 0.4), var(--sh-2); }

.extras { display: grid; gap: var(--s2); margin-top: var(--s3); }
.extra { display: flex; align-items: center; gap: var(--s2); padding: var(--s3); background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-md); transition: transform 200ms var(--ease), box-shadow 200ms var(--ease), border-color 200ms; }
.extra h3 { font-size: var(--t-sm); }
.extra p { font-size: 15px; color: var(--muted); }
.extra--link:hover { transform: translateY(-2px); box-shadow: var(--sh-1); border-color: rgb(var(--accent-rgb) / 0.6); }
.extra--link:active { transform: scale(0.98); }

@media (min-width: 768px) {
  .courses__rail { grid-auto-flow: row; grid-template-columns: repeat(3, 1fr); overflow: visible; padding: 0; margin: 0; gap: var(--s3); }
  .extras { grid-template-columns: repeat(3, 1fr); gap: var(--s3); }
}

/* ---------- Coding ---------- */
.coding { position: relative; overflow: hidden; background: var(--ink-950); color: var(--on-dark-muted); isolation: isolate; }
.coding__glow { position: absolute; inset: 0; z-index: -1; background: radial-gradient(500px 400px at 90% 30%, rgb(var(--glow-rgb) / 0.45), transparent 70%), radial-gradient(400px 300px at 10% 90%, rgb(var(--accent-rgb) / 0.14), transparent 70%); }
.coding__grid { display: grid; gap: var(--s8); align-items: center; }
.coding h2 { color: var(--on-dark); }
.coding h2 em { color: var(--accent); }
.coding .head__lead { color: var(--on-dark-muted); }
.langs { display: flex; flex-wrap: wrap; gap: var(--s1); margin-top: var(--s3); }
.langs li { display: inline-flex; align-items: center; gap: var(--s1); padding: var(--s1) var(--s2); border: 1px solid var(--line-dark); border-radius: 999px; background: rgb(var(--on-dark-rgb) / 0.05); color: var(--on-dark); font-weight: 600; }
.coding__visual { position: relative; padding: 0 0 var(--s4); }
.coding__video { aspect-ratio: 16 / 10; width: 86%; margin-left: auto; border-radius: var(--r-lg); overflow: hidden; background: var(--ink-800); box-shadow: var(--sh-3); transform: rotate(2deg); }
.term { position: relative; z-index: 2; width: 92%; margin-top: -96px; border: 1px solid var(--line-dark); border-radius: var(--r-md); background: rgb(var(--ink-deep-rgb) / 0.94); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: var(--sh-3); overflow: hidden; }
.term__bar { display: flex; align-items: center; gap: 6px; padding: 12px var(--s2); border-bottom: 1px solid var(--line-dark); }
.term__bar i { width: 10px; height: 10px; border-radius: 50%; background: #f87171; }
.term__bar i:nth-child(2) { background: #fbbf24; }
.term__bar i:nth-child(3) { background: #4ade80; }
.term__bar span { margin-left: var(--s1); font: 12.8px var(--mono); color: var(--on-dark-muted); }
.term__code { margin: 0; padding: var(--s2); min-height: 248px; font: 13px/1.7 var(--mono); color: var(--on-dark); white-space: pre-wrap; word-break: break-word; }
.term__code .c { color: rgb(var(--on-dark-rgb) / 0.45); font-style: italic; }
.term__code .k { color: var(--accent); }
.term__code .s { color: #9fe0b5; }
.term__code .f { color: #8ab4ff; }
.term__code .p { color: rgb(var(--on-dark-rgb) / 0.7); }
.term__code .out { color: #9fe0b5; }
.term__code .prompt { color: var(--accent); }
.caret { display: inline-block; width: 8px; height: 16px; margin-left: 2px; vertical-align: -3px; background: var(--accent); animation: blink 1s steps(1) infinite; }
.seal--stamp { right: 2%; bottom: -8px; top: auto; width: 112px; height: 112px; z-index: 3; }
.seal--stamp > span { font-size: var(--t-md); }

@media (min-width: 960px) {
  .coding__grid { grid-template-columns: 1fr 1.05fr; gap: var(--s10); }
  .term__code { font-size: 14px; padding: var(--s3); }
}

/* ---------- Reviews ---------- */
.reviews { overflow: hidden; }
.reviews__head { display: grid; gap: var(--s4); align-items: end; margin-bottom: var(--s6); }
.reviews__head .head { margin: 0; }
.tags { display: flex; flex-wrap: wrap; gap: var(--s1); margin-top: var(--s3); }
.tags li { display: inline-flex; align-items: center; gap: var(--s1); padding: 6px 14px; border: 1px solid var(--line); border-radius: 999px; background: var(--paper); font-size: 14px; font-weight: 500; color: var(--heading); }
.tags b { display: inline-grid; place-items: center; min-width: 22px; height: 22px; padding: 0 6px; border-radius: 999px; background: var(--accent-soft); font-size: 12.8px; }
.rating { display: flex; align-items: center; gap: var(--s3); padding: var(--s3) var(--s4); background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: var(--sh-2); }
.rating__score { font: 500 var(--t-5xl)/1 var(--serif); color: var(--heading); letter-spacing: -0.04em; }
.rating p { margin-top: 4px; font-size: 15px; }
.rating .link { min-height: 40px; font-size: 15px; }
@media (min-width: 960px) { .reviews__head { grid-template-columns: 1fr auto; } }

.marquee { -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); }
.marquee__track { display: flex; width: max-content; padding: var(--s1) 0; }
.marquee.is-live .marquee__track { animation: marquee var(--dur, 70s) linear infinite; }
.marquee.is-live .marquee__track + .marquee__track { margin-top: var(--s2); animation-direction: reverse; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee:not(.is-live) { overflow-x: auto; }
.review { width: 340px; flex: none; margin: 0 var(--s2) 0 0; padding: var(--s3); background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: var(--sh-1); }
.review__top { display: flex; align-items: center; gap: 12px; }
.review__top b { display: block; color: var(--heading); font-size: 15px; }
.review__top small { color: var(--muted); font-size: 12.8px; }
.review__top .stars { margin-left: auto; font-size: 14px; }
.avatar { display: grid; place-items: center; width: 40px; height: 40px; flex: none; border-radius: 50%; background: hsl(var(--h) 55% 46%); color: #fff; font-weight: 700; }
.review blockquote { margin: var(--s2) 0 0; color: var(--body); font-size: 15px; line-height: 1.6; }

/* ---------- FAQ ---------- */
.faq { background: var(--paper); }
.faq__grid { display: grid; gap: var(--s6); }
.faq .head .btn { margin-top: var(--s4); }
.faq__list { display: grid; gap: var(--s1); }
.faq details { border: 1px solid var(--line); border-radius: var(--r-md); background: var(--cream); transition: background-color 200ms, border-color 200ms; }
.faq details[open] { background: #fff; border-color: rgb(var(--accent-rgb) / 0.5); box-shadow: var(--sh-1); }
.faq summary { position: relative; display: flex; align-items: center; min-height: 64px; padding: var(--s2) var(--s8) var(--s2) var(--s3); font-weight: 600; color: var(--heading); cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; position: absolute; right: var(--s3); width: 24px; height: 24px; border-radius: 50%; background: var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230b2621' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M12 6v12M6 12h12'/%3E%3C/svg%3E") center / 14px no-repeat; transition: transform 240ms var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 var(--s3) var(--s3); }
.faq details p a { color: var(--heading); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }
@media (min-width: 960px) { .faq__grid { grid-template-columns: 0.8fr 1.2fr; gap: var(--s12); } .faq .head { position: sticky; top: calc(var(--nav-h) + var(--s4)); align-self: start; } }

/* ---------- Contact ---------- */
.contact { position: relative; background: var(--ink-900); color: var(--on-dark-muted); overflow: hidden; isolation: isolate; }
.contact::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(600px 400px at 0% 0%, rgb(var(--accent-rgb) / 0.14), transparent 70%); }
.contact__grid { display: grid; gap: var(--s6); }
.contact h2 { color: var(--on-dark); }
.contact h2 em { color: var(--accent); }
.contact .head__lead { color: var(--on-dark-muted); }
.form { margin-top: var(--s4); padding: var(--s4) var(--s3); color: var(--body); background: var(--paper); border-radius: var(--r-xl); box-shadow: var(--sh-3); display: grid; gap: var(--s3); }
.field { display: grid; gap: var(--s1); }
.field--row { grid-template-columns: 1fr 1fr; column-gap: var(--s2); }
.field--row > div { display: grid; gap: var(--s1); }
.field--row .field__err { grid-column: 1 / -1; }
.field label { font-size: 14px; font-weight: 600; color: var(--heading); }
.field input, .field select {
  width: 100%; height: 56px; padding: 0 var(--s2);
  font-size: 16px; color: var(--heading);
  background: var(--cream); border: 1px solid var(--line); border-radius: var(--r-sm);
  transition: border-color 180ms, box-shadow 180ms, background-color 180ms;
  -webkit-appearance: none; appearance: none;
}
.field select { padding-right: var(--s5); background: var(--cream) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230b2621' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") right 14px center / 18px no-repeat; cursor: pointer; }
.field input::placeholder { color: var(--muted); }
.field input:hover, .field select:hover { border-color: rgb(var(--ink-rgb) / 0.24); }
.field input:focus, .field select:focus { outline: none; background-color: #fff; border-color: var(--accent); box-shadow: 0 0 0 4px rgb(var(--accent-rgb) / 0.22); }
.field [aria-invalid="true"] { border-color: #c2410c; box-shadow: 0 0 0 4px rgba(194, 65, 12, 0.12); }
.field__phone { display: flex; }
.field__phone span { display: grid; place-items: center; padding: 0 var(--s2); background: var(--accent-soft); border: 1px solid var(--line); border-right: 0; border-radius: var(--r-sm) 0 0 var(--r-sm); font-weight: 600; color: var(--heading); }
.field__phone input { border-radius: 0 var(--r-sm) var(--r-sm) 0; }
.field__err { min-height: 0; color: #c2410c; font-size: 13px; font-weight: 500; }
.field__err:empty { display: none; }
.form__trust { text-align: center; font-size: 13px; color: var(--muted); }
.form__trust .stars { font-size: 13px; }
.form__trust .sep { margin-inline: 4px; }

.contact__info { display: grid; gap: var(--s2); align-content: start; }
.info { display: flex; align-items: flex-start; gap: var(--s2); padding: var(--s3); border: 1px solid var(--line-dark); border-radius: var(--r-md); background: rgb(var(--on-dark-rgb) / 0.04); transition: background-color 180ms, border-color 180ms, transform 180ms var(--ease); }
a.info:hover { background: rgb(var(--on-dark-rgb) / 0.08); border-color: rgb(var(--accent-rgb) / 0.4); transform: translateY(-2px); }
a.info:active { transform: scale(0.98); }
.info__icon { display: grid; place-items: center; width: 44px; height: 44px; flex: none; border-radius: var(--r-sm); background: rgb(var(--accent-rgb) / 0.14); }
.info__icon svg { width: 22px; height: 22px; fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.info small { display: block; font-size: var(--t-xs); letter-spacing: 0.1em; text-transform: uppercase; color: var(--on-dark-muted); }
.info b { display: block; margin-top: 2px; color: var(--on-dark); font-weight: 600; line-height: 1.45; }
.map { overflow: hidden; border-radius: var(--r-md); border: 1px solid var(--line-dark); aspect-ratio: 16 / 10; background: var(--ink-800); }
.map iframe { width: 100%; height: 100%; border: 0; filter: saturate(0.9) contrast(1.02); }

@media (min-width: 640px) { .form { padding: var(--s5); } }
@media (min-width: 960px) { .contact__grid { grid-template-columns: 1.1fr 0.9fr; gap: var(--s10); align-items: start; } .contact__info { margin-top: 196px; position: sticky; top: calc(var(--nav-h) + var(--s4)); } }

/* ---------- Footer ---------- */
.footer { background: var(--ink-950); color: var(--on-dark-muted); padding: var(--s10) 0 calc(var(--s12) + env(safe-area-inset-bottom)); font-size: 15px; }
.footer__grid { display: grid; gap: var(--s5); }
.footer__mr { margin: var(--s2) 0 var(--s1); font-family: var(--deva); font-size: var(--t-md); color: var(--accent); }
.footer__brand > p:last-child { max-width: 26rem; }
.footer__col { display: grid; gap: var(--s1); align-content: start; }
.footer__col h4 { margin-bottom: var(--s1); font-size: var(--t-xs); letter-spacing: 0.14em; text-transform: uppercase; color: var(--on-dark); }
.footer__col a { width: fit-content; min-height: 32px; display: inline-flex; align-items: center; transition: color 180ms; }
.footer__col a:hover { color: var(--accent); }
.footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--s1); margin-top: var(--s8); padding-top: var(--s3); border-top: 1px solid var(--line-dark); font-size: 13px; }
@media (min-width: 768px) { .footer__grid { grid-template-columns: 1.6fr 1fr 1.2fr; gap: var(--s8); } .footer { padding-bottom: var(--s6); } }

/* ---------- Mobile dock + WhatsApp FAB ---------- */
.dock { position: fixed; z-index: 40; left: var(--s1); right: var(--s1); bottom: calc(var(--s1) + env(safe-area-inset-bottom)); display: grid; grid-template-columns: 1fr 1fr 1.3fr; gap: 4px; padding: 4px; border-radius: 20px; background: rgb(var(--ink-deep-rgb) / 0.92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border: 1px solid var(--line-dark); box-shadow: var(--sh-3); transform: translateY(150%); transition: transform 360ms var(--ease); }
.dock.is-visible { transform: none; }
.dock a { display: flex; align-items: center; justify-content: center; gap: 6px; min-height: 52px; border-radius: 16px; color: var(--on-dark); font-size: 14px; font-weight: 600; transition: background-color 180ms, transform 180ms var(--ease); }
.dock a:active { transform: scale(0.97); }
.dock svg { width: 18px; height: 18px; fill: var(--accent); }
.dock .dock__cta { background: var(--accent); color: var(--ink-900); }
.wa-fab { display: none; }
@media (min-width: 768px) {
  .dock { display: none; }
  .wa-fab { position: fixed; z-index: 40; right: var(--s3); bottom: var(--s3); display: grid; place-items: center; width: 60px; height: 60px; border-radius: 50%; background: #25d366; box-shadow: 0 2px 4px rgb(var(--ink-deep-rgb) / 0.2), 0 12px 32px rgba(37, 211, 102, 0.36); transition: transform 200ms var(--ease); }
  .wa-fab::before { content: ""; position: absolute; inset: 0; border-radius: 50%; border: 2px solid #25d366; animation: ring 2.4s ease-out infinite; }
  .wa-fab:hover { transform: scale(1.06); }
  .wa-fab:active { transform: scale(0.96); }
  .wa-fab svg { width: 30px; height: 30px; fill: #fff; }
}

/* ---------- Reveal ---------- */
[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity 800ms var(--ease), transform 800ms var(--ease); transition-delay: calc(var(--d, 0) * 100ms); }
[data-reveal].is-in { opacity: 1; transform: none; }
.no-js [data-reveal] { opacity: 1; transform: none; }

/* ---------- Keyframes ---------- */
@keyframes marquee { to { transform: translateX(-50%); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@keyframes fadeIn { from { opacity: 0; transform: scale(0.97); } }
@keyframes lineUp { from { transform: translateY(110%); } }
@keyframes float { from { transform: translateY(-6px); } to { transform: translateY(6px); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes blink { 50% { opacity: 0; } }
@keyframes ping { 70% { box-shadow: 0 0 0 8px rgba(74, 222, 128, 0); } 100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); } }
@keyframes ring { from { transform: scale(1); opacity: 0.7; } to { transform: scale(1.6); opacity: 0; } }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 1ms !important; animation-iteration-count: 1 !important; animation-delay: 0ms !important; transition-duration: 1ms !important; scroll-behavior: auto !important; }
  [data-reveal] { opacity: 1; transform: none; }
  .piece, .proof__eq span, .proof__final { opacity: 1; }
  .topbar__track, .strip__track { animation: none; }
}

/* Mobile/tablet hero: video fills the top, then melts into ink behind the copy */
@media (max-width: 959px) {
  .hero__media { bottom: auto; height: 74svh; }
  .hero__media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgb(var(--ink-deep-rgb) / 0.4) 0%, transparent 18%, rgb(var(--ink-deep-rgb) / 0.8) 46%, var(--ink-950) 90%); }
  .hero__bg { background: radial-gradient(500px 400px at 90% 0%, rgb(var(--accent-rgb) / 0.14), transparent 70%); }
  .hero__mr { color: var(--accent-light); }
}

/* ---------- Admission form (2 steps) ---------- */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.form__step { display: grid; gap: var(--s3); margin: 0; padding: 0; border: 0; min-width: 0; }
.form__step:not([hidden]) { animation: fadeUp 400ms var(--ease) both; }
.steps-bar { display: grid; gap: var(--s1); }
.steps-bar__label { font-size: 13px; font-weight: 600; color: var(--muted); letter-spacing: 0.02em; }
.steps-bar__label b { color: var(--heading); }
.steps-bar__track { height: 4px; border-radius: 4px; background: var(--line); overflow: hidden; }
.steps-bar__track i { display: block; width: 50%; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--accent-lo), var(--accent)); transition: width 400ms var(--ease); }
.field__label { font-size: 14px; font-weight: 600; color: var(--heading); }
.field label i, .field__label i { color: #c2410c; font-style: normal; }
.choices { display: flex; flex-wrap: wrap; gap: var(--s1); }
.choices label { position: relative; cursor: pointer; }
.choices input { position: absolute; opacity: 0; pointer-events: none; }
.choices span { display: inline-flex; align-items: center; justify-content: center; min-width: 48px; min-height: 44px; padding: 0 var(--s2); border: 1px solid var(--line); border-radius: 999px; background: var(--cream); color: var(--heading); font-size: 15px; font-weight: 600; transition: background-color 160ms, border-color 160ms, color 160ms, transform 160ms var(--ease); user-select: none; }
.choices span sup { font-size: 0.65em; margin-left: 1px; }
.choices label:hover span { border-color: rgb(var(--ink-rgb) / 0.3); }
.choices label:active span { transform: scale(0.97); }
.choices input:checked + span { background: var(--ink-900); border-color: var(--ink-900); color: var(--on-dark); box-shadow: 0 0 0 3px rgb(var(--accent-rgb) / 0.35); }
.choices input:focus-visible + span { outline: 3px solid var(--accent); outline-offset: 2px; }
.choices--std { display: grid; grid-template-columns: repeat(6, 1fr); }
.choices--std span { min-width: 0; width: 100%; padding: 0; }
.choices--std .choices__wide { grid-column: 1 / -1; }
.choices[aria-invalid="true"] span { border-color: #c2410c; }
.form__actions { display: grid; grid-template-columns: auto 1fr; gap: var(--s2); }
.form__actions .btn { min-height: 56px; }
.btn--quiet { border-color: var(--line); color: var(--heading); background: var(--paper); }
.btn--quiet:hover { border-color: rgb(var(--ink-rgb) / 0.3); }
.form__done { display: grid; justify-items: center; gap: var(--s1); padding: var(--s4) 0 var(--s2); text-align: center; outline: none; animation: fadeUp 500ms var(--ease) both; }
.form__done[hidden] { display: none; }
.form__done h3 { margin-top: var(--s2); font-family: var(--serif); font-weight: 500; font-size: var(--t-xl); }
.form__done p { max-width: 26rem; }
.form__done b { color: var(--heading); }
.form__done .btn { margin-top: var(--s2); }
.form__tick { display: grid; place-items: center; width: 72px; height: 72px; border-radius: 50%; background: radial-gradient(circle at 30% 25%, var(--accent-hi), var(--accent) 60%, var(--accent-lo)); box-shadow: var(--sh-accent); }
.form__tick svg { width: 32px; height: 32px; fill: none; stroke: var(--ink-950); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 24; stroke-dashoffset: 24; animation: draw 600ms 200ms var(--ease) forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.hero__video { filter: contrast(1.12) saturate(1.1); }

/* ---------- Demo badge + honeypot ---------- */
.demo-badge { display: inline-flex; align-items: center; gap: var(--s1); margin-top: var(--s3); padding: 6px 14px; border: 1px dashed #c2410c; border-radius: 999px; background: #fff4ec; color: #9a3412; font-size: 13px; font-weight: 600; }
.demo-badge::before { content: "●"; font-size: 10px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---------- Toppers ---------- */
.toppers { position: relative; background: var(--paper); overflow: hidden; }
.toppers::before { content: ""; position: absolute; inset: 0 0 auto; height: 60%; background: radial-gradient(600px 300px at 50% 0%, rgb(var(--accent-rgb) / 0.16), transparent 70%); pointer-events: none; }
.podium { position: relative; display: grid; gap: var(--s3); align-items: end; max-width: 1000px; margin: 0 auto; }
.topper { position: relative; display: grid; justify-items: center; gap: 4px; padding: var(--s5) var(--s3) var(--s4); text-align: center; background: var(--cream); border: 1px solid var(--line); border-radius: var(--r-xl); box-shadow: var(--sh-1); transition: transform 240ms var(--ease), box-shadow 240ms var(--ease); }
.topper:hover { transform: translateY(-4px); box-shadow: var(--sh-2); }
.topper--1 { background: linear-gradient(180deg, var(--ink-900), var(--ink-950)); border-color: rgb(var(--accent-rgb) / 0.5); box-shadow: 0 0 0 1px rgb(var(--accent-rgb) / 0.25), var(--sh-3); }
.topper--1 h3 { color: var(--on-dark); }
.topper--1 p { color: var(--on-dark-muted); }
.topper__crown { position: absolute; top: -22px; display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: radial-gradient(circle at 30% 25%, var(--accent-hi), var(--accent) 60%, var(--accent-lo)); color: var(--ink-950); font-size: 20px; box-shadow: var(--sh-accent); }
.topper__rank { font-size: var(--t-xs); font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent-deep); }
.topper--1 .topper__rank { color: var(--accent); }
.ring { position: relative; width: 148px; height: 148px; margin: var(--s2) 0; display: grid; place-items: center; }
.topper--1 .ring { width: 172px; height: 172px; }
.ring svg { position: absolute; inset: 0; width: 100%; height: 100%; transform: rotate(-90deg); }
.ring circle { fill: none; stroke-width: 7; stroke-linecap: round; }
.ring__bg { stroke: var(--line); }
.topper--1 .ring__bg { stroke: var(--line-dark); }
.ring__val { stroke: var(--accent); stroke-dasharray: 326.7px; stroke-dashoffset: 326.7px; transition: stroke-dashoffset 1800ms 300ms var(--ease); }
.topper.is-in .ring__val { stroke-dashoffset: calc(326.7px * (1 - var(--p) / 100)); }
.ring strong { font: 500 var(--t-2xl)/1 var(--serif); color: var(--heading); letter-spacing: -0.02em; }
.topper--1 .ring strong { font-size: var(--t-3xl); color: var(--on-dark); }
.ring small { font-size: 0.5em; color: var(--accent-deep); }
.topper--1 .ring small { color: var(--accent); }
.topper__avatar { display: grid; place-items: center; width: 48px; height: 48px; margin-top: -4px; border: 3px solid var(--paper); border-radius: 50%; background: hsl(var(--h) 40% 42%); color: #fff; font-weight: 700; font-size: 15px; }
.topper--1 .topper__avatar { border-color: var(--ink-900); }
.topper h3 { margin-top: var(--s1); font-family: var(--serif); font-weight: 500; font-size: var(--t-lg); }
.topper p { font-size: 14px; color: var(--muted); }
.achievers { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s2); max-width: 1000px; margin: var(--s6) auto 0; }
.achievers li { display: grid; gap: 2px; padding: var(--s3); background: var(--cream); border: 1px solid var(--line); border-radius: var(--r-md); }
.achievers b { font: 500 var(--t-xl)/1 var(--serif); color: var(--heading); }
.achievers b small { font-size: 0.55em; color: var(--accent-deep); }
.achievers span { margin-top: 6px; font-weight: 600; color: var(--heading); font-size: 15px; }
.achievers em { font-style: normal; font-size: 13px; color: var(--muted); }
.achievers li:last-child { grid-column: 1 / -1; }
@media (min-width: 768px) {
  .podium { grid-template-columns: 1fr 1.15fr 1fr; }
  .topper--1 { padding-block: var(--s6) var(--s5); }
  .achievers { grid-template-columns: repeat(5, 1fr); }
  .achievers li:last-child { grid-column: auto; }
}
@media (max-width: 767px) { .topper--1 { order: -1; margin-top: var(--s2); } }

/* ---------- Timetable ---------- */
.timetable { background: var(--cream); }
.tt { max-width: 1040px; margin: 0 auto; padding: var(--s2); background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-xl); box-shadow: var(--sh-2); }
.tt__tabs { display: flex; gap: 4px; padding: 4px; overflow-x: auto; border-radius: 999px; background: var(--cream); scrollbar-width: none; }
.tt__tabs::-webkit-scrollbar { display: none; }
.tt__tabs button { flex: 1 0 auto; min-height: 44px; padding: 0 var(--s2); border: 0; border-radius: 999px; background: none; color: var(--muted); font-weight: 600; font-size: 15px; white-space: nowrap; cursor: pointer; transition: background-color 200ms, color 200ms, box-shadow 200ms; }
.tt__tabs button:hover { color: var(--heading); }
.tt__tabs button[aria-selected="true"] { background: var(--ink-900); color: var(--on-dark); box-shadow: var(--sh-1); }
.tt__panel { margin-top: var(--s2); animation: fadeUp 360ms var(--ease) both; }
.tt__row { display: grid; gap: 6px var(--s2); padding: var(--s2) var(--s2); border-bottom: 1px solid var(--line); align-items: center; }
.tt__row--head { display: none; }
.tt__row > span[data-l]::before { content: attr(data-l); display: inline-block; min-width: 72px; color: var(--muted); font-size: 13px; }
.tt__row b { color: var(--heading); font-size: var(--t-sm); }
.tt__row--test { background: rgb(var(--accent-rgb) / 0.08); border-radius: var(--r-sm); border-bottom: 0; }
.tt__cta { justify-self: start; display: inline-flex; align-items: center; min-height: 40px; padding: 0 var(--s2); border: 1px solid var(--line); border-radius: 999px; font-size: 14px; font-weight: 600; color: var(--heading); transition: background-color 180ms, border-color 180ms, transform 180ms var(--ease); }
.tt__cta:hover { border-color: var(--accent); background: rgb(var(--accent-rgb) / 0.12); }
.tt__cta:active { transform: scale(0.97); }
.tt__note { margin-top: var(--s2); padding: var(--s1) var(--s2); font-size: 14px; color: var(--muted); }
.tt__note a { color: var(--heading); font-weight: 600; }
@media (min-width: 768px) {
  .tt { padding: var(--s3); }
  .tt__row { grid-template-columns: 1.3fr 1fr 1.2fr 1.6fr auto; padding: var(--s2) var(--s3); }
  .tt__row--head { display: grid; padding-block: var(--s1); border-bottom: 1px solid var(--line); }
  .tt__row--head span { font-size: var(--t-xs); font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
  .tt__row > span[data-l]::before { display: none; }
  .tt__cta { justify-self: end; }
}
@media (min-width: 1024px) and (max-width: 1180px) { .nav__links { gap: var(--s3); } }

/* Header with 7 links: keep every label on one line, phone only when there is room */
.nav__links a, .brand__text small, .nav__phone { white-space: nowrap; }
@media (min-width: 1024px) { .nav__links { gap: var(--s3); } }
@media (min-width: 1024px) and (max-width: 1279px) { .brand__text small { display: none; } .nav__links a { font-size: 14px; } .nav__links { gap: var(--s2); } }
@media (max-width: 1399px) { .nav__phone { display: none !important; } }