/* ==========================================================================
   GENDER, RELIGION AND CASTE — NCERT Class 10 Civics Chapter 3
   Design system: dark SaaS · aurora gradients · faux-glass (perf-tuned)
   Zero large-blur layers · backdrop-filter only on nav · content-visibility
   ========================================================================== */

/* ---------- Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,300;9..144,400;9..144,600;9..144,700;9..144,900&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;600&display=swap');

/* ---------- Tokens ---------- */
:root {
  --bg-0: #05060f;
  --bg-1: #0a0d1f;
  --bg-2: #101532;
  --ink: #eef1ff;
  --ink-soft: #ccd3f5;
  --ink-dim: #9aa3d2;
  --violet: #7c6cff;
  --violet-deep: #5a45e8;
  --cyan: #39d0f9;
  --pink: #ff6ec7;
  --amber: #ffb24d;
  --emerald: #34e0a1;
  --rose: #ff5d7a;

  --accent-gender: var(--pink);
  --accent-religion: var(--amber);
  --accent-caste: var(--cyan);
  --accent-civics: var(--violet);

  /* faux glass (no backdrop-filter) */
  --glass-bg: linear-gradient(150deg, rgba(255,255,255,0.075), rgba(255,255,255,0.025) 55%, rgba(255,255,255,0.05));
  --glass-bg-strong: linear-gradient(150deg, rgba(255,255,255,0.12), rgba(255,255,255,0.05) 55%, rgba(255,255,255,0.08));
  --glass-border: rgba(255, 255, 255, 0.13);
  --glass-highlight: rgba(255, 255, 255, 0.22);

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Plus Jakarta Sans', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --sp-1: 8px;  --sp-2: 16px; --sp-3: 24px; --sp-4: 32px;
  --sp-5: 48px; --sp-6: 64px; --sp-7: 96px; --sp-8: 128px;

  --r-sm: 12px; --r-md: 18px; --r-lg: 26px; --r-xl: 34px; --r-pill: 999px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --t-fast: 220ms; --t-med: 480ms; --t-slow: 900ms;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.8;
  color: var(--ink);
  background: var(--bg-0);
  overflow-x: hidden;
  min-height: 100vh;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style-position: inside; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }

::selection { background: rgba(124, 108, 255, 0.45); color: #fff; }

::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--violet), var(--cyan));
  border-radius: 8px; border: 3px solid var(--bg-0);
}

/* ==========================================================================
   BACKGROUND — fully static, zero filters, one fixed paint
   ========================================================================== */
.aurora {
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(1150px 780px at 88% -12%, rgba(90, 69, 232, 0.30), transparent 62%),
    radial-gradient(950px 700px at -8% 28%, rgba(57, 208, 249, 0.17), transparent 60%),
    radial-gradient(900px 900px at 52% 112%, rgba(255, 110, 199, 0.15), transparent 62%),
    radial-gradient(640px 420px at 78% 62%, rgba(124, 108, 255, 0.13), transparent 65%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1) 55%, var(--bg-0));
}

.dotgrid {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image: radial-gradient(rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(180deg, black 0%, transparent 55%);
  -webkit-mask-image: linear-gradient(180deg, black 0%, transparent 55%);
}

/* ==========================================================================
   PROGRESS + NAV
   ========================================================================== */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--pink), var(--violet), var(--cyan));
  z-index: 1001; border-radius: 0 3px 3px 0;
  box-shadow: 0 0 14px rgba(124,108,255,0.8);
  transition: width 80ms linear;
}

.nav {
  position: fixed; top: 18px; left: 50%; transform: translateX(-50%);
  z-index: 1000; width: min(1180px, calc(100% - 32px));
  display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3);
  padding: 12px 14px 12px 20px;
  background: rgba(10, 13, 31, 0.72);
  -webkit-backdrop-filter: blur(16px);   /* the ONLY backdrop-blur on the page */
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-pill);
  box-shadow: 0 12px 40px rgba(0,0,0,0.45), inset 0 1px 0 var(--glass-highlight);
  transition: box-shadow var(--t-med) var(--ease-out);
}
.nav.scrolled { box-shadow: 0 18px 60px rgba(0,0,0,0.62), 0 0 0 1px rgba(124,108,255,0.28), inset 0 1px 0 var(--glass-highlight); }

.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: 0.2px; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 13px; flex: none;
  background: conic-gradient(from 210deg, var(--pink), var(--violet), var(--cyan), var(--pink));
  display: grid; place-items: center; font-size: 17px;
  box-shadow: 0 6px 20px rgba(124,108,255,0.55), inset 0 1px 1px rgba(255,255,255,0.5);
}
.brand-name { font-size: 15.5px; }
.brand-sub { display: block; font-size: 10.5px; font-weight: 600; color: var(--ink-dim);
  letter-spacing: 1.6px; text-transform: uppercase; line-height: 1.4; }

.nav-links { display: flex; gap: 4px; align-items: center; }
.nav-link {
  padding: 9px 16px; border-radius: var(--r-pill); font-size: 14.5px; font-weight: 600;
  color: var(--ink-soft); position: relative; overflow: hidden;
  transition: color var(--t-fast) ease, background var(--t-fast) ease, transform var(--t-fast) var(--ease-spring);
}
.nav-link::after {
  content: ''; position: absolute; left: 50%; bottom: 4px; transform: translateX(-50%) scaleX(0);
  width: 18px; height: 2.5px; border-radius: 2px; transform-origin: center;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  transition: transform var(--t-med) var(--ease-spring);
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.07); transform: translateY(-1px); }
.nav-link:hover::after, .nav-link.active::after { transform: translateX(-50%) scaleX(1); }
.nav-link.active { color: #fff; background: linear-gradient(135deg, rgba(124,108,255,0.32), rgba(57,208,249,0.18)); }
.nav-cta {
  padding: 11px 22px; border-radius: var(--r-pill); font-weight: 700; font-size: 14.5px;
  background: linear-gradient(135deg, var(--violet-deep), var(--violet) 55%, #9d8bff);
  box-shadow: 0 8px 26px rgba(124,108,255,0.45), inset 0 1px 0 rgba(255,255,255,0.35);
  color: #fff; transition: transform var(--t-fast) var(--ease-spring), box-shadow var(--t-fast) ease, filter var(--t-fast);
}
.nav-cta:hover { transform: translateY(-2px) scale(1.03); filter: brightness(1.12);
  box-shadow: 0 14px 34px rgba(124,108,255,0.6), inset 0 1px 0 rgba(255,255,255,0.35); }
.nav-cta:focus-visible, .nav-link:focus-visible, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 8px;
}

.nav-burger { display: none; width: 44px; height: 44px; border-radius: 12px;
  place-items: center; color: var(--ink); background: rgba(255,255,255,0.06); }
.nav-burger svg { width: 22px; height: 22px; }

@media (max-width: 980px) {
  .nav-links, .nav-cta { display: none; }
  .nav-burger { display: grid; }
}
.mobile-menu {
  position: fixed; top: 84px; left: 16px; right: 16px; z-index: 999;
  background: rgba(10,13,31,0.95);
  border: 1px solid var(--glass-border); border-radius: var(--r-lg);
  padding: var(--sp-2); display: grid; gap: 4px;
  transform: translateY(-16px) scale(0.98); opacity: 0; pointer-events: none;
  transition: transform var(--t-med) var(--ease-out), opacity var(--t-med);
}
.mobile-menu.open { transform: none; opacity: 1; pointer-events: auto; }
.mobile-menu a { padding: 13px 18px; border-radius: var(--r-sm); font-weight: 600; color: var(--ink-soft); }
.mobile-menu a:hover { background: rgba(255,255,255,0.07); color: #fff; }

/* ---------- side dot nav (new) ---------- */
.dotnav {
  position: fixed; right: 22px; top: 50%; transform: translateY(-50%);
  z-index: 998; display: grid; gap: 14px;
}
.dotnav a {
  width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%;
  color: var(--ink-dim); position: relative;
  transition: color var(--t-fast), transform var(--t-fast) var(--ease-spring);
}
.dotnav a::before {
  content: ''; width: 8px; height: 8px; border-radius: 50%;
  background: currentColor; opacity: 0.55; transition: all var(--t-med) var(--ease-spring);
}
.dotnav a:hover { color: #fff; transform: scale(1.15); }
.dotnav a.active { color: #fff; transform: scale(1.1); }
.dotnav a.active::before {
  opacity: 1; width: 12px; height: 12px;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  box-shadow: 0 0 14px rgba(124,108,255,0.9);
}
.dotnav a .dn-tip {
  position: absolute; right: 44px; top: 50%; transform: translateY(-50%) translateX(6px);
  white-space: nowrap; font-size: 12px; font-weight: 700; letter-spacing: 0.4px;
  padding: 6px 14px; border-radius: var(--r-pill); color: var(--ink);
  background: rgba(10,13,31,0.92); border: 1px solid var(--glass-border);
  opacity: 0; pointer-events: none;
  transition: opacity var(--t-fast), transform var(--t-fast) var(--ease-out);
}
.dotnav a:hover .dn-tip { opacity: 1; transform: translateY(-50%) translateX(0); }
@media (max-width: 1240px) { .dotnav { display: none; } }

/* ---------- back to top (new) ---------- */
.to-top {
  position: fixed; left: 22px; bottom: 24px; z-index: 998;
  width: 52px; height: 52px; border-radius: 17px; display: grid; place-items: center;
  color: #fff; border: 1px solid rgba(255,255,255,0.16);
  background: linear-gradient(145deg, rgba(124,108,255,0.35), rgba(57,208,249,0.18)), rgba(10,13,31,0.85);
  box-shadow: 0 14px 40px rgba(0,0,0,0.5), 0 0 24px rgba(124,108,255,0.3);
  opacity: 0; pointer-events: none; transform: translateY(14px) scale(0.9);
  transition: opacity var(--t-med) var(--ease-out), transform var(--t-med) var(--ease-spring), filter var(--t-fast);
}
.to-top.show { opacity: 1; pointer-events: auto; transform: none; }
.to-top:hover { filter: brightness(1.25); transform: translateY(-3px); }
.to-top svg { width: 22px; height: 22px; }

/* ==========================================================================
   LAYOUT PRIMITIVES
   ========================================================================== */
.container { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.container-wide { width: min(1380px, calc(100% - 48px)); margin-inline: auto; }

section { position: relative; padding-block: var(--sp-8);
  content-visibility: auto; contain-intrinsic-size: auto 1400px; }

/* gradient hairline divider between sections (new) */
.divider {
  width: min(1180px, calc(100% - 48px)); margin: 0 auto; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(124,108,255,0.45) 30%, rgba(57,208,249,0.45) 70%, transparent);
  position: relative;
}
.divider::after {
  content: ''; position: absolute; left: 50%; top: 50%; width: 9px; height: 9px;
  transform: translate(-50%, -50%) rotate(45deg);
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  box-shadow: 0 0 14px rgba(124,108,255,0.8); border-radius: 2px;
}

/* section head with watermark numeral (new) */
.sec-head { margin-bottom: var(--sp-6); position: relative; }
.sec-mark {
  position: absolute; top: -34px; right: -10px; z-index: -1;
  font-family: var(--font-display); font-weight: 900; font-size: clamp(6rem, 14vw, 11rem); line-height: 1;
  color: transparent; -webkit-text-stroke: 1.5px rgba(255,255,255,0.07);
  pointer-events: none; user-select: none;
  letter-spacing: -6px;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 600;
  letter-spacing: 2.6px; text-transform: uppercase;
  padding: 8px 18px; border-radius: var(--r-pill);
  color: var(--ink-soft);
  background: var(--glass-bg); border: 1px solid var(--glass-border);
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor;
  box-shadow: 0 0 12px currentColor; animation: pulse-dot 2.4s ease-in-out infinite; }
@keyframes pulse-dot { 0%,100% { opacity: 1; transform: scale(1);} 50% { opacity: 0.45; transform: scale(0.75);} }

.eyebrow.c-pink   { color: #ffb9dd; border-color: rgba(255,110,199,0.35); background: rgba(255,110,199,0.09); }
.eyebrow.c-amber  { color: #ffd9a1; border-color: rgba(255,178,77,0.35); background: rgba(255,178,77,0.09); }
.eyebrow.c-cyan   { color: #a8ecff; border-color: rgba(57,208,249,0.35); background: rgba(57,208,249,0.09); }
.eyebrow.c-violet { color: #cfc7ff; border-color: rgba(124,108,255,0.4); background: rgba(124,108,255,0.11); }
.eyebrow.c-emerald{ color: #a5f5d3; border-color: rgba(52,224,161,0.35); background: rgba(52,224,161,0.09); }

.sec-title {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(2.3rem, 5vw, 3.9rem); line-height: 1.08;
  letter-spacing: -0.5px; margin-top: var(--sp-3);
}
.sec-title .grad {
  background: linear-gradient(100deg, var(--pink) 0%, var(--violet) 45%, var(--cyan) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  background-size: 200% 100%; animation: grad-slide 7s ease-in-out infinite alternate;
}
@keyframes grad-slide { from { background-position: 0% 0; } to { background-position: 100% 0; } }

.sec-lede { margin-top: var(--sp-3); max-width: 68ch; color: #c4cbef;
  font-size: clamp(1.02rem, 1.4vw, 1.16rem); font-weight: 400; }

/* ==========================================================================
   FAUX-GLASS CARD SYSTEM (no backdrop-filter)
   ========================================================================== */
.card {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  box-shadow: 0 18px 50px rgba(0,0,0,0.35), inset 0 1px 0 var(--glass-highlight);
  transition: transform var(--t-med) var(--ease-out), box-shadow var(--t-med) var(--ease-out),
    border-color var(--t-med), background var(--t-med);
}
.card:hover {
  transform: translateY(-6px);
  background: var(--glass-bg-strong);
  border-color: rgba(255,255,255,0.22);
  box-shadow: 0 30px 70px rgba(0,0,0,0.5), 0 0 0 1px rgba(124,108,255,0.22), inset 0 1px 0 var(--glass-highlight);
}
/* sheen sweep — transform-based (GPU), not background-position */
.card::after {
  content: ''; position: absolute; inset: -1px; border-radius: inherit; pointer-events: none;
  background: linear-gradient(115deg, transparent 42%, rgba(255,255,255,0.10) 50%, transparent 58%);
  transform: translateX(-130%) skewX(-12deg);
  opacity: 0;
  transition: transform 800ms var(--ease-out), opacity 300ms;
}
.card:hover::after { opacity: 1; transform: translateX(130%) skewX(-12deg); }

.card-pad { padding: clamp(24px, 3.4vw, 42px); }

/* 3D tilt cards (JS-driven, desktop only) */
.tilt { transform-style: preserve-3d; will-change: transform; }
.tilt .tilt-inner { transform: translateZ(24px); }

/* icon chip */
.chip {
  width: 58px; height: 58px; border-radius: 17px; display: grid; place-items: center; flex: none;
  border: 1px solid rgba(255,255,255,0.16);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.3), 0 10px 26px rgba(0,0,0,0.35);
}
.chip svg { width: 27px; height: 27px; }
.chip.pink   { background: linear-gradient(145deg, rgba(255,110,199,0.3), rgba(255,110,199,0.1)); color: #ffb9dd; }
.chip.amber  { background: linear-gradient(145deg, rgba(255,178,77,0.3), rgba(255,178,77,0.1)); color: #ffd9a1; }
.chip.cyan   { background: linear-gradient(145deg, rgba(57,208,249,0.3), rgba(57,208,249,0.1)); color: #a8ecff; }
.chip.violet { background: linear-gradient(145deg, rgba(124,108,255,0.35), rgba(124,108,255,0.12)); color: #cfc7ff; }
.chip.emerald{ background: linear-gradient(145deg, rgba(52,224,161,0.3), rgba(52,224,161,0.1)); color: #a5f5d3; }
.chip.rose   { background: linear-gradient(145deg, rgba(255,93,122,0.3), rgba(255,93,122,0.1)); color: #ffb3c1; }

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 15px 30px; border-radius: var(--r-pill);
  font-weight: 700; font-size: 15.5px; letter-spacing: 0.2px;
  position: relative; overflow: hidden;
  transition: transform var(--t-fast) var(--ease-spring), box-shadow var(--t-fast) ease, filter var(--t-fast);
}
.btn svg { width: 18px; height: 18px; }
.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--violet-deep), var(--violet) 55%, #9d8bff);
  box-shadow: 0 12px 32px rgba(124,108,255,0.5), inset 0 1px 0 rgba(255,255,255,0.4);
}
.btn-primary:hover { transform: translateY(-3px) scale(1.02); filter: brightness(1.14);
  box-shadow: 0 20px 46px rgba(124,108,255,0.66), inset 0 1px 0 rgba(255,255,255,0.4); }
.btn-ghost {
  color: var(--ink); background: var(--glass-bg);
  border: 1px solid var(--glass-border);
}
.btn-ghost:hover { background: rgba(255,255,255,0.09); transform: translateY(-3px);
  border-color: rgba(255,255,255,0.28); }
.btn-primary::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(110deg, transparent 35%, rgba(255,255,255,0.35) 50%, transparent 65%);
  transform: translateX(-120%); transition: transform 700ms var(--ease-out);
}
.btn-primary:hover::before { transform: translateX(120%); }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero { padding-top: 170px; padding-bottom: var(--sp-7); overflow: clip; }
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: var(--sp-6); align-items: center; }
@media (max-width: 1020px) { .hero-grid { grid-template-columns: 1fr; } .hero { padding-top: 130px; } }

.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 600; letter-spacing: 2px; text-transform: uppercase;
  padding: 9px 18px; border-radius: var(--r-pill);
  background: rgba(124,108,255,0.14); border: 1px solid rgba(124,108,255,0.4); color: #cfc7ff;
}
.hero-badge .live { width: 8px; height: 8px; border-radius: 50%; background: var(--emerald);
  box-shadow: 0 0 12px var(--emerald); animation: pulse-dot 2s infinite; }

.hero-title {
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(3rem, 7.2vw, 5.6rem); line-height: 1.02; letter-spacing: -1.5px;
  margin-top: var(--sp-4);
}
.hero-title .line { display: block; overflow: hidden; }
.hero-title .line > span { display: inline-block; }
.hero-title .grad {
  background: linear-gradient(95deg, #ffd1ec, var(--pink) 25%, var(--violet) 55%, var(--cyan) 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  background-size: 220% 100%; animation: grad-slide 8s ease-in-out infinite alternate;
}
.hero-lede { margin-top: var(--sp-4); font-size: clamp(1.06rem, 1.5vw, 1.25rem);
  color: var(--ink-soft); max-width: 56ch; }
.hero-lede strong { color: var(--ink); font-weight: 700; }

.hero-actions { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-top: var(--sp-5); }

.hero-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: var(--sp-2); margin-top: var(--sp-6); }
.stat {
  position: relative; overflow: hidden;
  padding: 20px 22px; border-radius: var(--r-md);
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  transition: transform var(--t-med) var(--ease-out), border-color var(--t-med);
}
.stat::before {  /* corner glow (new) */
  content: ''; position: absolute; top: -40%; right: -30%; width: 90px; height: 90px;
  background: radial-gradient(circle, rgba(124,108,255,0.35), transparent 70%);
  pointer-events: none;
}
.stat:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.24); }
.stat-num {
  font-family: var(--font-display); font-weight: 700; font-size: clamp(1.9rem, 3vw, 2.6rem);
  background: linear-gradient(120deg, #fff, #c9c3ff); -webkit-background-clip: text; background-clip: text; color: transparent;
  line-height: 1.15; font-variant-numeric: tabular-nums;
}
.stat-label { font-size: 12.5px; font-weight: 600; color: var(--ink-dim);
  letter-spacing: 1px; text-transform: uppercase; margin-top: 4px; }

/* hero visual — reflective panel collage */
.hero-visual { position: relative; min-height: 540px; }
.hero-visual::before {  /* conic glow ring behind panels (new) */
  content: ''; position: absolute; inset: 12% 6%;
  background: conic-gradient(from 200deg, rgba(255,110,199,0.22), rgba(124,108,255,0.28), rgba(57,208,249,0.22), rgba(255,110,199,0.22));
  border-radius: 50%; filter: blur(46px); z-index: 0; opacity: 0.8;
  animation: ring-spin 22s linear infinite;
}
@keyframes ring-spin { to { transform: rotate(360deg); } }
.glass-panel {
  position: absolute; border-radius: var(--r-lg); overflow: hidden;
  border: 1px solid rgba(255,255,255,0.2);
  box-shadow: 0 30px 80px rgba(0,0,0,0.55), inset 0 1px 0 rgba(255,255,255,0.28);
  background: rgba(255,255,255,0.04);
  z-index: 1;
}
.glass-panel img { width: 100%; height: 100%; object-fit: cover; }
.glass-panel figcaption {
  position: absolute; left: 12px; bottom: 12px; right: 12px;
  padding: 10px 16px; border-radius: var(--r-sm);
  background: rgba(5,6,15,0.72); border: 1px solid rgba(255,255,255,0.15);
  font-size: 12.5px; font-weight: 600; color: var(--ink); letter-spacing: 0.4px;
}
.gp-1 { width: 66%; aspect-ratio: 4/3.4; top: 0; left: 0; z-index: 3; animation: float-a 9s ease-in-out infinite; }
.gp-2 { width: 52%; aspect-ratio: 1/1.05; top: 34%; right: 0; z-index: 2; animation: float-b 11s ease-in-out infinite; }
.gp-3 { width: 44%; aspect-ratio: 5/3.6; bottom: -4%; left: 8%; z-index: 4; animation: float-a 10s ease-in-out infinite reverse; }
@keyframes float-a { 0%,100% { transform: translateY(0) rotate(-1.2deg);} 50% { transform: translateY(-16px) rotate(0.8deg);} }
@keyframes float-b { 0%,100% { transform: translateY(0) rotate(1.4deg);} 50% { transform: translateY(14px) rotate(-0.6deg);} }

.glass-panel::before {
  content: ''; position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background: linear-gradient(125deg, rgba(255,255,255,0.18) 0%, transparent 34%, transparent 66%, rgba(255,255,255,0.07) 100%);
}
@media (max-width: 1020px) { .hero-visual { min-height: 440px; margin-top: var(--sp-3); } }
@media (max-width: 560px) { .hero-visual { min-height: 360px; } }

/* orbiting chips around hero visual (new) */
.orbit-chip {
  position: absolute; z-index: 6;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px; border-radius: var(--r-pill);
  font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: 1.2px; text-transform: uppercase;
  background: rgba(10,13,31,0.88); border: 1px solid var(--glass-border);
  box-shadow: 0 12px 32px rgba(0,0,0,0.45), inset 0 1px 0 rgba(255,255,255,0.15);
}
.orbit-chip .oc-dot { width: 7px; height: 7px; border-radius: 50%; }
.oc-1 { top: -14px; right: 8%; animation: float-b 8s ease-in-out infinite; }
.oc-2 { bottom: 10%; right: -6px; animation: float-a 9s ease-in-out infinite; }
.oc-3 { top: 46%; left: -18px; animation: float-b 10s ease-in-out infinite reverse; }
@media (max-width: 1020px) { .oc-3 { display: none; } }

/* marquee ribbon */
.marquee {
  margin-top: var(--sp-7); border-block: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.03); overflow: hidden; padding-block: 16px; position: relative;
}
.marquee-track { display: flex; gap: 54px; width: max-content; animation: marquee 34s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-item {
  display: inline-flex; align-items: center; gap: 12px; white-space: nowrap;
  font-family: var(--font-mono); font-size: 13px; font-weight: 600; letter-spacing: 2.4px;
  text-transform: uppercase; color: var(--ink-dim);
}
.marquee-item .m-dot { width: 6px; height: 6px; border-radius: 50%; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ==========================================================================
   TOPIC SEGMENTS
   ========================================================================== */
.triptych { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-3); }
@media (max-width: 980px) { .triptych { grid-template-columns: 1fr; } }

.topic-card { padding: clamp(26px, 3vw, 38px); display: flex; flex-direction: column; gap: var(--sp-2); overflow: hidden; position: relative; }
.topic-card .num {
  font-family: var(--font-display); font-style: italic; font-weight: 300;
  font-size: 4.4rem; line-height: 1; opacity: 0.18;
  position: absolute; top: 14px; right: 22px;
}
.topic-card h3 { font-family: var(--font-display); font-size: 1.7rem; font-weight: 700; letter-spacing: -0.3px; }
.topic-card p { color: var(--ink-soft); font-size: 15.5px; }
.topic-card .tagline {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 1.8px; text-transform: uppercase; font-weight: 600;
}
/* gradient cap on topic cards (new) */
.topic-card::before {
  content: ''; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: linear-gradient(90deg, var(--tc, var(--violet)), transparent 80%);
}
.topic-card:nth-child(1) { --tc: var(--pink); }
.topic-card:nth-child(2) { --tc: var(--amber); }
.topic-card:nth-child(3) { --tc: var(--cyan); }

/* ==========================================================================
   LINE-BY-LINE EXPLANATION BLOCKS
   ========================================================================== */
.lineblock { margin-top: var(--sp-5); display: grid; gap: var(--sp-4); }

.lb {
  display: grid; grid-template-columns: 54px 1fr; gap: var(--sp-3);
  padding: clamp(24px, 3vw, 38px);
  border-radius: var(--r-lg);
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  box-shadow: 0 16px 44px rgba(0,0,0,0.32), inset 0 1px 0 var(--glass-highlight);
  position: relative; overflow: hidden;
  transition: transform var(--t-med) var(--ease-out), border-color var(--t-med), box-shadow var(--t-med);
}
.lb:hover { transform: translateX(6px); border-color: rgba(255,255,255,0.22);
  box-shadow: 0 24px 60px rgba(0,0,0,0.45), inset 0 1px 0 var(--glass-highlight); }
.lb::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3.5px;
  background: linear-gradient(180deg, var(--lb-accent, var(--violet)), transparent 85%);
  opacity: 0.9;
}
.lb-no {
  font-family: var(--font-mono); font-weight: 600; font-size: 13px; letter-spacing: 1px;
  width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; flex: none;
  color: var(--lb-accent, var(--violet));
  background: color-mix(in srgb, var(--lb-accent, var(--violet)) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--lb-accent, var(--violet)) 38%, transparent);
  margin-top: 4px;
}
.lb.lb-pink   { --lb-accent: var(--pink); }
.lb.lb-amber  { --lb-accent: var(--amber); }
.lb.lb-cyan   { --lb-accent: var(--cyan); }
.lb.lb-violet { --lb-accent: var(--violet); }
.lb.lb-emerald{ --lb-accent: var(--emerald); }

.lb-ncert {
  position: relative;
  font-size: 17px; color: #ecefff; font-weight: 400;
  border-left: 3.5px solid color-mix(in srgb, var(--lb-accent, var(--violet)) 75%, transparent);
  padding: 16px 22px 16px 54px; margin-bottom: 18px;
  font-style: italic; line-height: 1.78;
  background: color-mix(in srgb, var(--lb-accent, var(--violet)) 8%, transparent);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}
.lb-ncert::before {
  content: '“';
  position: absolute; left: 14px; top: 2px;
  font-family: var(--font-display); font-style: normal; font-size: 3rem; line-height: 1;
  color: color-mix(in srgb, var(--lb-accent, var(--violet)) 85%, white);
  opacity: 0.9;
}
.lb-ncert::after {
  content: 'NCERT TEXT'; font-family: var(--font-mono); font-style: normal; font-size: 9.5px;
  letter-spacing: 2.2px; color: color-mix(in srgb, var(--lb-accent, var(--violet)) 90%, white);
  font-weight: 600; display: block; margin-top: 8px; opacity: 0.85;
}
.lb-explain { color: #cdd4f6; font-size: 16.5px; line-height: 1.82; }
.lb-explain b, .lb-explain strong { color: #fff; font-weight: 700; }
.lb-explain .kw {
  font-weight: 700; padding: 1.5px 8px; border-radius: 6px; white-space: nowrap;
  font-size: 0.95em;
  color: color-mix(in srgb, var(--lb-accent, var(--violet)) 82%, white);
  background: color-mix(in srgb, var(--lb-accent, var(--violet)) 13%, transparent);
  border-bottom: 1.5px dashed color-mix(in srgb, var(--lb-accent, var(--violet)) 55%, transparent);
}
@media (max-width: 700px) { .lb { grid-template-columns: 1fr; gap: 14px; } }

/* callouts */
.note {
  margin-top: 16px; padding: 18px 22px; border-radius: var(--r-md);
  display: flex; gap: 14px; align-items: flex-start;
  font-size: 15px; line-height: 1.65;
  background: rgba(255,255,255,0.04); border: 1px solid var(--glass-border);
}
.note svg { width: 20px; height: 20px; flex: none; margin-top: 2px; }
.note .note-t { font-weight: 800; font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; display: block; margin-bottom: 4px; }
.note-info  { border-color: rgba(57,208,249,0.35); background: rgba(57,208,249,0.08); }
.note-info .note-t, .note-info svg { color: #a8ecff; }
.note-warn  { border-color: rgba(255,178,77,0.35); background: rgba(255,178,77,0.08); }
.note-warn .note-t, .note-warn svg { color: #ffd9a1; }
.note-exam  { border-color: rgba(52,224,161,0.35); background: rgba(52,224,161,0.08); }
.note-exam .note-t, .note-exam svg { color: #a5f5d3; }
.note-think { border-color: rgba(255,110,199,0.35); background: rgba(255,110,199,0.08); }
.note-think .note-t, .note-think svg { color: #ffb9dd; }

/* definition strip */
.defbox {
  display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: start;
  padding: 22px 26px; border-radius: var(--r-md); margin-block: 10px;
  background: linear-gradient(135deg, rgba(124,108,255,0.15), rgba(57,208,249,0.07));
  border: 1px solid rgba(124,108,255,0.35);
  position: relative; overflow: hidden;
}
.defbox::after {  /* right edge glow (new) */
  content: ''; position: absolute; right: -34px; top: -34px; width: 110px; height: 110px;
  background: radial-gradient(circle, rgba(124,108,255,0.28), transparent 70%); pointer-events: none;
}
.defbox .db-word { font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; color: #ded9ff; }
.defbox .db-word::after { content: ' —'; color: var(--ink-dim); }
.defbox p { color: var(--ink-soft); font-size: 15.5px; }
@media (max-width: 640px) { .defbox { grid-template-columns: 1fr; } }

/* data tables */
.dtable-wrap { overflow-x: auto; border-radius: var(--r-md); border: 1px solid var(--glass-border); margin-top: 18px; }
table.dtable { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 480px; }
.dtable caption {
  caption-side: top; text-align: left; padding: 16px 20px 10px;
  font-weight: 700; font-size: 13px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--ink-dim);
}
.dtable th, .dtable td { padding: 13px 20px; text-align: left; }
.dtable thead th {
  background: rgba(255,255,255,0.05); color: var(--ink);
  font-weight: 700; font-size: 12.5px; letter-spacing: 1.2px; text-transform: uppercase;
  border-bottom: 1px solid var(--glass-border);
}
.dtable tbody tr { border-bottom: 1px solid rgba(255,255,255,0.06); transition: background var(--t-fast); }
.dtable tbody tr:last-child { border-bottom: none; }
.dtable tbody tr:hover { background: rgba(124,108,255,0.09); }
.dtable td:first-child { font-weight: 600; color: var(--ink); }
.dtable td { color: var(--ink-soft); font-variant-numeric: tabular-nums; }
.dtable .bar-cell { min-width: 130px; }
.hbar { height: 8px; border-radius: 4px; background: rgba(255,255,255,0.08); overflow: hidden; position: relative; }
.hbar > i {
  position: absolute; inset: 0 auto 0 0; width: 0; border-radius: 4px; display: block;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  transition: width 1.2s var(--ease-out);
}
.hbar.gold > i { background: linear-gradient(90deg, #ffb24d, #ff6ec7); }
.dtable-src { font-size: 12px; color: var(--ink-dim); padding: 10px 20px 14px; font-style: italic; }

/* bar chart rows */
.barchart { display: grid; gap: 12px; margin-top: 20px; }
.bcrow { display: grid; grid-template-columns: 150px 1fr 52px; gap: 14px; align-items: center; font-size: 14px; }
.bcrow .bc-label { color: var(--ink-soft); font-weight: 600; text-align: right; }
.bcrow .bc-track { height: 22px; border-radius: 7px; background: rgba(255,255,255,0.06); overflow: hidden;
  position: relative; }
.bcrow .bc-fill { display: block; height: 100%; width: 0; border-radius: 7px;
  background: linear-gradient(90deg, var(--violet-deep), var(--violet), var(--cyan));
  transition: width 1.4s var(--ease-out); position: relative; }
.bcrow .bc-fill::after {  /* tip glow (new) */
  content: ''; position: absolute; right: 0; top: 0; bottom: 0; width: 18px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.45));
  border-radius: 7px;
}
.bcrow.india .bc-fill { background: linear-gradient(90deg, #ff5d7a, #ff6ec7); }
.bcrow .bc-val { font-family: var(--font-mono); font-weight: 600; color: var(--ink); font-size: 13.5px; font-variant-numeric: tabular-nums; }
@media (max-width: 640px) { .bcrow { grid-template-columns: 104px 1fr 44px; gap: 8px; font-size: 12.5px; } }

/* legend + donut */
.legend-rows { display: grid; gap: 10px; margin-top: 18px; }
.lrow { display: grid; grid-template-columns: 14px 1fr auto; gap: 12px; align-items: center; font-size: 14.5px; }
.lrow .sw { width: 14px; height: 14px; border-radius: 4.5px; box-shadow: inset 0 1px 0 rgba(255,255,255,0.35); }
.lrow .lname { color: var(--ink-soft); font-weight: 600; }
.lrow .lval { font-family: var(--font-mono); font-size: 13px; color: var(--ink); font-variant-numeric: tabular-nums; }

.donut {
  width: min(300px, 72vw); aspect-ratio: 1; border-radius: 50%; margin: 22px auto 6px; position: relative;
  background: conic-gradient(
    #7c6cff 0% 79.8%,
    #39d0f9 79.8% 94%,
    #ff6ec7 94% 96.3%,
    #ffb24d 96.3% 98%,
    #34e0a1 98% 98.7%,
    #ff5d7a 98.7% 100%
  );
  box-shadow: 0 0 0 1px rgba(255,255,255,0.1), 0 0 60px rgba(124,108,255,0.25);
  transform: rotate(-90deg) scale(0.85); opacity: 0;
  transition: transform 1.2s var(--ease-spring), opacity 0.8s ease;
}
.donut.in { transform: rotate(-90deg) scale(1); opacity: 1; }
.donut::after {
  content: '2011\A Census of India'; white-space: pre; position: absolute; inset: 22%;
  border-radius: 50%; background: #0b0e20; display: grid; place-items: center; text-align: center;
  font-family: var(--font-display); font-weight: 700; font-size: 15px; color: var(--ink);
  transform: rotate(90deg);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.12);
}

/* personality cards */
.people { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-3); }
@media (max-width: 1080px) { .people { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px)  { .people { grid-template-columns: 1fr; } }
.person { overflow: hidden; display: flex; flex-direction: column; }
.person .p-img { position: relative; aspect-ratio: 4/4.6; overflow: hidden; }
.person .p-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease-out), filter 0.6s; filter: saturate(0.85); }
.person:hover .p-img img { transform: scale(1.07); filter: saturate(1.05); }
.person .p-img::after { content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(124,108,255,0.14) 0%, transparent 30%, transparent 42%, rgba(5,6,15,0.88) 96%); }
.person .p-body { padding: 20px 24px 26px; display: grid; gap: 6px; margin-top: -46px; position: relative; z-index: 2; }
.person .p-name { font-family: var(--font-display); font-weight: 700; font-size: 1.22rem; }
.person .p-role { font-family: var(--font-mono); font-size: 11px; letter-spacing: 1.6px; text-transform: uppercase; color: #ffd9a1; font-weight: 600; }
.person .p-desc { font-size: 14px; color: var(--ink-soft); }

/* feature image rows */
.feat-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4); align-items: center; }
@media (max-width: 900px) { .feat-row { grid-template-columns: 1fr; } }
.feat-img { border-radius: var(--r-lg); overflow: hidden; position: relative;
  border: 1px solid var(--glass-border); box-shadow: 0 26px 70px rgba(0,0,0,0.5); }
.feat-img img { width: 100%; aspect-ratio: 16/10.5; object-fit: cover; filter: saturate(0.92);
  transition: transform 1.1s var(--ease-out); }
.feat-img:hover img { transform: scale(1.05); }
.feat-img figcaption {
  position: absolute; left: 14px; bottom: 14px; right: 14px; z-index: 2;
  padding: 12px 18px; border-radius: var(--r-sm);
  background: rgba(5,6,15,0.72); border: 1px solid rgba(255,255,255,0.16); font-size: 13px; font-weight: 600;
}
.feat-img .glare { position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(125deg, rgba(255,255,255,0.15), transparent 40%); }

/* timeline */
.timeline { position: relative; margin-top: var(--sp-5); padding-left: 34px; }
.timeline::before { content: ''; position: absolute; left: 9px; top: 6px; bottom: 6px; width: 2px;
  background: linear-gradient(180deg, var(--pink), var(--violet) 50%, var(--cyan)); border-radius: 2px; }
.tl-item { position: relative; padding: 0 0 var(--sp-4) var(--sp-4); }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ''; position: absolute; left: -30px; top: 8px; width: 14px; height: 14px; border-radius: 50%;
  background: #0b0e20; border: 3px solid var(--violet); box-shadow: 0 0 14px rgba(124,108,255,0.7);
}
.tl-year { font-family: var(--font-mono); font-weight: 600; font-size: 12.5px; letter-spacing: 1.6px;
  color: var(--cyan); text-transform: uppercase; }
.tl-title { font-weight: 700; font-size: 1.06rem; margin-top: 2px; }
.tl-text { color: var(--ink-soft); font-size: 15px; margin-top: 4px; max-width: 62ch; }

/* accordion */
.acc { display: grid; gap: 12px; margin-top: var(--sp-4); }
.acc-item {
  border-radius: var(--r-md); overflow: hidden;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  transition: border-color var(--t-med), background var(--t-med);
}
.acc-item.open { border-color: rgba(124,108,255,0.45); background: rgba(124,108,255,0.07); }
.acc-btn {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 20px 24px; text-align: left; font-weight: 700; font-size: 16px; color: var(--ink);
  transition: background var(--t-fast); min-height: 44px;
}
.acc-btn:hover { background: rgba(255,255,255,0.04); }
.acc-btn .acc-ico { flex: none; width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center;
  background: rgba(124,108,255,0.16); border: 1px solid rgba(124,108,255,0.35); color: #cfc7ff;
  transition: transform var(--t-med) var(--ease-spring); }
.acc-item.open .acc-ico { transform: rotate(45deg); }
.acc-body { max-height: 0; overflow: hidden; transition: max-height 600ms var(--ease-out); }
.acc-inner { padding: 0 24px 22px; color: var(--ink-soft); font-size: 15.5px; }
.acc-inner b { color: #fff; }

/* quiz — round length selector */
.quiz-len {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  padding: 14px 16px; margin-bottom: var(--sp-3);
  border-radius: var(--r-md); background: rgba(255,255,255,0.04);
  border: 1px solid var(--glass-border);
}
.quiz-len .ql-label {
  font-family: var(--font-mono); font-size: 11px; font-weight: 600;
  letter-spacing: 1.8px; text-transform: uppercase; color: var(--ink-dim);
  margin-right: 4px;
}
.len-btn {
  padding: 9px 18px; border-radius: var(--r-pill); min-height: 40px;
  font-weight: 700; font-size: 13.5px; color: var(--ink-soft);
  background: rgba(255,255,255,0.05); border: 1.5px solid var(--glass-border);
  transition: all var(--t-fast) var(--ease-out);
}
.len-btn:hover { color: #fff; border-color: rgba(124,108,255,0.6);
  background: rgba(124,108,255,0.12); transform: translateY(-2px); }
.len-btn.active {
  color: #fff; background: linear-gradient(135deg, var(--violet-deep), var(--violet));
  border-color: transparent;
  box-shadow: 0 8px 22px rgba(124,108,255,0.45), inset 0 1px 0 rgba(255,255,255,0.35);
}

/* quiz */
.quiz-shell { max-width: 860px; margin-inline: auto; }
.quiz-meta { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: var(--sp-3); flex-wrap: wrap; }
.quiz-progress { flex: 1; min-width: 180px; height: 10px; border-radius: 6px; background: rgba(255,255,255,0.08); overflow: hidden; }
.quiz-progress > i { display: block; height: 100%; width: 0; border-radius: 6px;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  transition: width 500ms var(--ease-out); }
.quiz-count { font-family: var(--font-mono); font-size: 13px; font-weight: 600; color: var(--ink-dim); letter-spacing: 1px; }
.quiz-count b { color: var(--ink); font-size: 16px; }

.quiz-streak {  /* streak badge (new) */
  display: none; align-items: center; gap: 7px;
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 600; letter-spacing: 1px;
  padding: 7px 15px; border-radius: var(--r-pill);
  color: #ffd9a1; background: rgba(255,178,77,0.12); border: 1px solid rgba(255,178,77,0.45);
}
.quiz-streak.on { display: inline-flex; animation: fade-up 400ms var(--ease-out); }
.quiz-streak svg { width: 14px; height: 14px; }

.quiz-q { font-family: var(--font-display); font-size: clamp(1.2rem, 2.4vw, 1.55rem); font-weight: 700; line-height: 1.35; }
.quiz-opts { display: grid; gap: 12px; margin-top: var(--sp-4); }
.opt {
  display: flex; align-items: center; gap: 16px; text-align: left; width: 100%;
  padding: 17px 22px; border-radius: var(--r-md); font-size: 15.5px; font-weight: 600; color: var(--ink-soft);
  background: rgba(255,255,255,0.04); border: 1.5px solid var(--glass-border);
  transition: all var(--t-fast) var(--ease-out); min-height: 44px;
}
.opt .key {
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 600; flex: none;
  width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center;
  background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.14); color: var(--ink-dim);
  transition: all var(--t-fast);
}
.opt:hover:not(:disabled) { border-color: rgba(124,108,255,0.55); background: rgba(124,108,255,0.09);
  color: #fff; transform: translateX(6px); }
.opt:hover:not(:disabled) .key { background: rgba(124,108,255,0.3); color: #fff; }
.opt.correct { border-color: rgba(52,224,161,0.7); background: rgba(52,224,161,0.12); color: #d7fff0; }
.opt.correct .key { background: var(--emerald); color: #04241a; border-color: transparent; }
.opt.wrong { border-color: rgba(255,93,122,0.7); background: rgba(255,93,122,0.1); color: #ffd8de; }
.opt.wrong .key { background: var(--rose); color: #2b040c; border-color: transparent; }
.opt:disabled { cursor: default; }
.quiz-fb { margin-top: var(--sp-3); padding: 16px 20px; border-radius: var(--r-md); font-size: 14.5px;
  display: none; animation: fade-up 500ms var(--ease-out); }
.quiz-fb.show { display: block; }
.quiz-fb.good { background: rgba(52,224,161,0.1); border: 1px solid rgba(52,224,161,0.4); color: #c9ffe9; }
.quiz-fb.bad  { background: rgba(255,93,122,0.1); border: 1px solid rgba(255,93,122,0.4); color: #ffd8de; }
.quiz-actions { margin-top: var(--sp-4); display: flex; gap: 14px; flex-wrap: wrap; }

.quiz-result { text-align: center; display: none; }
.quiz-result.show { display: block; animation: fade-up 700ms var(--ease-out); }
.quiz-score {
  font-family: var(--font-display); font-weight: 900; font-size: clamp(4rem, 10vw, 7rem); line-height: 1;
  background: linear-gradient(120deg, var(--pink), var(--violet), var(--cyan));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.quiz-verdict { font-size: 1.15rem; font-weight: 700; margin-top: 8px; }
.quiz-sub { color: var(--ink-dim); margin-top: 6px; }

@keyframes fade-up { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

.confetti { position: fixed; z-index: 1200; width: 10px; height: 14px; top: -20px; pointer-events: none; }
@keyframes confetti-fall {
  to { transform: translateY(105vh) rotate(720deg); opacity: 0.1; }
}

/* ==========================================================================
   GLOSSARY
   ========================================================================== */
.gloss-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-3); }
@media (max-width: 880px) { .gloss-grid { grid-template-columns: 1fr; } }
.gloss-card { padding: 26px 30px; }
.gloss-word { display: flex; align-items: center; gap: 12px; font-family: var(--font-display);
  font-weight: 700; font-size: 1.25rem; }
.gloss-word .gw-dot { width: 10px; height: 10px; border-radius: 3px; flex: none; box-shadow: 0 0 10px currentColor; }
.gloss-card p { margin-top: 10px; color: var(--ink-soft); font-size: 15px; }
.gloss-card .gw-tag { margin-left: auto; font-family: var(--font-mono); font-size: 10.5px; font-weight: 600;
  letter-spacing: 1.6px; text-transform: uppercase; color: var(--ink-dim);
  padding: 4px 10px; border-radius: var(--r-pill); border: 1px solid var(--glass-border); }

/* ==========================================================================
   SOLUTIONS
   ========================================================================== */
.sol-item { margin-top: var(--sp-3); }
.sol-q { display: flex; gap: 14px; align-items: flex-start; }
.sol-badge {
  flex: none; font-family: var(--font-mono); font-weight: 600; font-size: 12px;
  min-width: 44px; height: 32px; padding-inline: 10px; border-radius: var(--r-pill);
  display: grid; place-items: center;
  background: rgba(124,108,255,0.16); border: 1px solid rgba(124,108,255,0.4); color: #cfc7ff;
}
.sol-body { padding-top: 3px; }
.sol-body h4 { font-size: 1.02rem; font-weight: 700; }
.sol-body .sol-ans { margin-top: 10px; color: var(--ink-soft); font-size: 15.5px; }
.sol-body .sol-ans b { color: #fff; }
.sol-body .sol-ans ul { margin: 8px 0 8px 6px; display: grid; gap: 6px; }
.sol-body .sol-ans li { padding-left: 6px; }
.sol-body .sol-ans li::marker { color: var(--cyan); }
.sol-marks { font-family: var(--font-mono); font-size: 11px; color: var(--ink-dim); letter-spacing: 1px;
  margin-left: auto; flex: none; padding-top: 8px; }

/* ==========================================================================
   CTA BAND + FOOTER
   ========================================================================== */
.cta-band { position: relative; overflow: hidden; }
.cta-inner {
  position: relative; padding: clamp(40px, 6vw, 84px); border-radius: var(--r-xl); text-align: center;
  background:
    radial-gradient(700px 300px at 50% -60px, rgba(124,108,255,0.38), transparent 70%),
    radial-gradient(500px 240px at 15% 110%, rgba(57,208,249,0.14), transparent 70%),
    radial-gradient(500px 240px at 85% 110%, rgba(255,110,199,0.14), transparent 70%),
    linear-gradient(160deg, rgba(255,255,255,0.07), rgba(255,255,255,0.02));
  border: 1px solid rgba(255,255,255,0.16);
  box-shadow: 0 40px 100px rgba(0,0,0,0.5), inset 0 1px 0 var(--glass-highlight);
}
.cta-inner::before {
  content: ''; position: absolute; inset: -1px; border-radius: inherit; pointer-events: none;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.09) 50%, transparent 70%);
  background-size: 220% 100%; animation: grad-slide 6s ease-in-out infinite alternate;
}
.cta-inner h2 { font-family: var(--font-display); font-weight: 800; font-size: clamp(1.9rem, 4.4vw, 3.1rem); line-height: 1.12; }
.cta-inner p { color: var(--ink-soft); max-width: 56ch; margin: var(--sp-3) auto 0; }

footer { border-top: 1px solid var(--glass-border); padding-block: var(--sp-6) var(--sp-4);
  background: rgba(255,255,255,0.02); }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--sp-5); }
@media (max-width: 820px) { .foot-grid { grid-template-columns: 1fr; } }
.foot-brand p { color: var(--ink-dim); font-size: 14px; margin-top: 14px; max-width: 40ch; }
.foot-h { font-family: var(--font-mono); font-size: 11.5px; font-weight: 600; letter-spacing: 2px;
  text-transform: uppercase; color: var(--ink-dim); margin-bottom: 16px; }
.foot-links { display: grid; gap: 10px; }
.foot-links a { color: var(--ink-soft); font-size: 14.5px; font-weight: 500; transition: color var(--t-fast), transform var(--t-fast); display: inline-block; }
.foot-links a:hover { color: #fff; transform: translateX(4px); }
.foot-bottom { margin-top: var(--sp-5); padding-top: var(--sp-3); border-top: 1px solid rgba(255,255,255,0.07);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  color: var(--ink-dim); font-size: 13px; }
.foot-bottom .heart { color: var(--pink); }

/* ==========================================================================
   REVEAL-ON-SCROLL
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(38px);
  transition: opacity 800ms var(--ease-out), transform 800ms var(--ease-out);
  transition-delay: var(--d, 0ms); }
.reveal.rv-left  { transform: translateX(-46px); }
.reveal.rv-right { transform: translateX(46px); }
.reveal.rv-zoom  { transform: scale(0.9); }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001s !important; animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
  .marquee-track { animation: none; }
  .hero-visual::before { animation: none; }
}

@media (min-width: 1600px) {
  body { font-size: 18.5px; }
  .container, .container-wide { width: min(1280px, calc(100% - 64px)); }
}