/* ═══════════════════════════════════════════════════════════════
   APEX DESIGN SYSTEM — ULTRA DARK PREMIUM
   ═══════════════════════════════════════════════════════════════ */



:root {
  /* ── Core Ink Palette ── */
  --ink:         #020408;
  --ink-2:       #060a10;
  --ink-3:       #090e18;
  --ink-4:       #0d1424;
  --ink-surface: rgba(12, 18, 32, 0.72);

  /* ── Glass System ── */
  --glass:       rgba(255, 255, 255, 0.018);
  --glass-2:     rgba(255, 255, 255, 0.034);
  --glass-3:     rgba(255, 255, 255, 0.055);
  --glass-blur:  blur(24px) saturate(1.9);
  --glass-frost: blur(40px) saturate(2.2) brightness(1.05);

  /* ── Border System ── */
  --border:      rgba(255, 255, 255, 0.052);
  --border-s:    rgba(255, 255, 255, 0.028);
  --border-h:    rgba(120, 119, 255, 0.6);
  --border-glow: rgba(120, 119, 255, 0.25);
  --border-plasma: rgba(0, 229, 255, 0.22);

  /* ── Core Accent Colors ── */
  --violet:    #7877ff;
  --violet-l:  #a8a7ff;
  --violet-d:  #5554e0;
  --violet-xs: rgba(120, 119, 255, 0.09);
  --plasma:    #00e5ff;
  --plasma-d:  #00b8d4;
  --plasma-xs: rgba(0, 229, 255, 0.08);
  --aurora:    #3dffa3;
  --aurora-d:  #00cc6a;
  --aurora-xs: rgba(61, 255, 163, 0.08);
  --solar:     #ffbb38;
  --solar-xs:  rgba(255, 187, 56, 0.08);
  --flare:     #ff4c6e;
  --flare-xs:  rgba(255, 76, 110, 0.08);
  --nebula:    #c162ff;
  --nebula-xs: rgba(193, 98, 255, 0.08);
  --gold:      #ffd07a;

  /* ── Gradient Library ── */
  --grad-v:   linear-gradient(135deg, #7877ff 0%, #00e5ff 100%);
  --grad-a:   linear-gradient(135deg, #c162ff 0%, #ff4c6e 100%);
  --grad-g:   linear-gradient(135deg, #3dffa3 0%, #00e5ff 100%);
  --grad-s:   linear-gradient(135deg, #ffbb38 0%, #ff4c6e 100%);
  --grad-p:   linear-gradient(135deg, #7877ff 0%, #c162ff 45%, #00e5ff 100%);
  --grad-gold: linear-gradient(135deg, #ffd07a 0%, #ffbb38 100%);
  --grad-mesh: radial-gradient(at 20% 20%, rgba(120, 119, 255, 0.15) 0px, transparent 50%),
               radial-gradient(at 80% 80%, rgba(0, 229, 255, 0.10) 0px, transparent 50%),
               radial-gradient(at 50% 10%, rgba(193, 98, 255, 0.08) 0px, transparent 45%);

  /* ── Text Scale ── */
  --text-0: #eef2ff;
  --text-1: #c4cfea;
  --text-2: #6e7f9e;
  --text-3: #374356;
  --text-4: #1e2a38;

  /* ── Radius Tokens ── */
  --r:    22px;
  --rm:   16px;
  --rs:   12px;
  --rxs:  8px;
  --rxxs: 5px;

  /* ── Elevation / Shadow ── */
  --shadow-xs:   0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-sm:   0 4px 20px rgba(0, 0, 0, 0.5);
  --shadow-card: 0 16px 48px rgba(0, 0, 0, 0.65), 0 0 0 1px rgba(255, 255, 255, 0.036);
  --shadow-glow: 0 0 44px rgba(120, 119, 255, 0.2);
  --shadow-hover:0 28px 64px rgba(0, 0, 0, 0.78), 0 0 28px rgba(120, 119, 255, 0.22);
  --shadow-float:0 40px 80px rgba(0, 0, 0, 0.85), 0 0 0 1px rgba(120, 119, 255, 0.12);
  --shadow-inset:inset 0 1px 0 rgba(255, 255, 255, 0.05), inset 0 -1px 0 rgba(0, 0, 0, 0.2);

  /* ── Easing & Timing ── */
  --ease:      cubic-bezier(0.16, 1, 0.3, 1);
  --ease-back: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-in:   cubic-bezier(0.4, 0, 1, 1);
  --ease-out:  cubic-bezier(0, 0, 0.2, 1);
  --tr:        0.28s var(--ease);
  --tr-fast:   0.16s var(--ease);
  --tr-slow:   0.48s var(--ease);

  /* ── Typography ── */
  --fh: 'Syne', sans-serif;
  --fb: 'DM Sans', sans-serif;
  --fm: 'JetBrains Mono', monospace;

  /* ── Spacing Scale ── */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl:64px;
}

/* ══════════════════════════════════════════════
   RESET & BASE
══════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  text-rendering: optimizeLegibility;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--ink);
  color: var(--text-1);
  font-family: var(--fb);
  font-weight: 400;
  line-height: 1.72;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--fh);
  color: var(--text-0);
  line-height: 1.1;
  letter-spacing: -0.5px;
  font-weight: 800;
}

button { cursor: pointer; border: none; outline: none; font-family: var(--fb); background: none; }
a      { text-decoration: none; color: inherit; }
img    { max-width: 100%; display: block; }
input, select, textarea { font-family: var(--fb); }

::selection { background: rgba(120, 119, 255, 0.38); color: #fff; }

/* ── Scrollbar ── */
::-webkit-scrollbar       { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--violet); }

/* ── Focus ring ── */
:focus-visible {
  outline: 2px solid rgba(120, 119, 255, 0.6);
  outline-offset: 3px;
  border-radius: var(--rxs);
}

/* ══════════════════════════════════════════════
   KEYFRAME ANIMATIONS
══════════════════════════════════════════════ */
@keyframes fadeUp    { from { opacity: 0; transform: translateY(26px) } to { opacity: 1; transform: translateY(0) } }
@keyframes fadeDown  { from { opacity: 0; transform: translateY(-16px) } to { opacity: 1; transform: translateY(0) } }
@keyframes fadeIn    { from { opacity: 0 } to { opacity: 1 } }
@keyframes fadeOut   { from { opacity: 1 } to { opacity: 0 } }
@keyframes scaleIn   { from { opacity: 0; transform: scale(0.92) } to { opacity: 1; transform: scale(1) } }
@keyframes popIn     { 0%   { transform: scale(0.86); opacity: 0 }
                       65%  { transform: scale(1.03) }
                       100% { transform: scale(1); opacity: 1 } }
@keyframes shimmer   { 0%   { background-position: -400% 0 } 100% { background-position: 400% 0 } }
@keyframes spinSlow  { to   { transform: rotate(360deg) } }
@keyframes floatY    { 0%, 100% { transform: translateY(0) } 50% { transform: translateY(-9px) } }
@keyframes floatX    { 0%, 100% { transform: translateX(0) } 50% { transform: translateX(6px) } }
@keyframes pulseGlow { 0%, 100% { opacity: 0.55; transform: scale(1) } 50% { opacity: 1; transform: scale(1.18) } }
@keyframes gradShift { 0%   { background-position: 0% 50% }
                       50%  { background-position: 100% 50% }
                       100% { background-position: 0% 50% } }
@keyframes warnPulse { 0%, 100% { box-shadow: 0 0 8px rgba(255, 76, 110, 0.3) }
                       50%      { box-shadow: 0 0 28px rgba(255, 76, 110, 0.85) } }
@keyframes barFill   { from { transform: scaleX(0); transform-origin: left }
                       to   { transform: scaleX(1);  transform-origin: left } }
@keyframes ringDraw  { from { stroke-dashoffset: 440 } to { stroke-dashoffset: var(--target-offset) } }
@keyframes borderSpin{ to   { transform: rotate(360deg) } }
@keyframes pageIn    { from { opacity: 0; transform: translateY(16px) } to { opacity: 1; transform: translateY(0) } }
@keyframes glowPulse { 0%, 100% { opacity: 0.4 } 50% { opacity: 0.9 } }
@keyframes lineSlide { from { transform: scaleX(0); transform-origin: left } to { transform: scaleX(1) } }
@keyframes dotBlink  { 0%, 100% { opacity: 1 } 50% { opacity: 0.2 } }
@keyframes slideInRight { from { transform: translateX(18px); opacity: 0 } to { transform: translateX(0); opacity: 1 } }
@keyframes slideInLeft  { from { transform: translateX(-18px); opacity: 0 } to { transform: translateX(0); opacity: 1 } }

/* ── Animation Utility Classes ── */
.fade-up  { animation: fadeUp   0.6s var(--ease) both; }
.fade-in  { animation: fadeIn   0.4s ease both; }
.scale-in { animation: scaleIn  0.45s var(--ease) both; }
.pop-in   { animation: popIn    0.42s var(--ease) both; }
.d1  { animation-delay: 0.06s; } .d2  { animation-delay: 0.12s; }
.d3  { animation-delay: 0.18s; } .d4  { animation-delay: 0.24s; }
.d5  { animation-delay: 0.30s; } .d6  { animation-delay: 0.36s; }
.d7  { animation-delay: 0.42s; } .d8  { animation-delay: 0.48s; }

/* ══════════════════════════════════════════════
   BACKGROUND SYSTEM
══════════════════════════════════════════════ */
#bgCanvas {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none; opacity: 0.8;
}

.bg-mesh {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 80% 55% at 15% 12%, rgba(120, 119, 255, 0.13) 0%, transparent 62%),
    radial-gradient(ellipse 60% 45% at 82% 78%, rgba(0, 229, 255, 0.09) 0%, transparent 58%),
    radial-gradient(ellipse 50% 35% at 58% 48%, rgba(193, 98, 255, 0.07) 0%, transparent 52%),
    radial-gradient(ellipse 40% 28% at 8%  82%, rgba(61, 255, 163, 0.05) 0%, transparent 48%),
    radial-gradient(ellipse 35% 22% at 92% 18%, rgba(255, 76, 110, 0.04) 0%, transparent 44%),
    radial-gradient(ellipse 25% 20% at 50% 95%, rgba(255, 187, 56, 0.03) 0%, transparent 42%);
  animation: glowPulse 14s ease-in-out infinite;
}

.bg-noise {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none; opacity: 0.022;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 220px 220px;
}

/* Subtle grid lines overlay */
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0.018;
  background-image:
    linear-gradient(rgba(255,255,255,0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.5) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}

/* ══════════════════════════════════════════════
   LAYOUT
══════════════════════════════════════════════ */
.page { display: none; min-height: 100vh; position: relative; z-index: 1; }
.page.active { display: block; animation: pageIn 0.48s var(--ease) both; }

.container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 48px);
}

.section { padding: clamp(48px, 8vw, 96px) 0; }

/* ══════════════════════════════════════════════
   GRADIENT TEXT UTILITY
══════════════════════════════════════════════ */
.grad-text {
  background: linear-gradient(118deg, #7877ff 0%, #c162ff 28%, #00e5ff 60%, #3dffa3 100%);
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradShift 9s ease infinite;
}

.grad-text-warm {
  background: linear-gradient(118deg, #ffbb38 0%, #ff4c6e 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradShift 6s ease infinite;
}

/* ══════════════════════════════════════════════
   BUTTONS
══════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 26px;
  border-radius: var(--rs);
  font-size: 14px;
  font-weight: 600;
  font-family: var(--fb);
  letter-spacing: 0.15px;
  transition: var(--tr);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}

/* Shimmer sweep on hover */
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 30%, rgba(255,255,255,0.08) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.5s var(--ease);
}
.btn:hover::after { transform: translateX(100%); }

/* Ripple base */
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0);
  transition: background 0.22s;
  z-index: 0;
}
.btn:active::before { background: rgba(255, 255, 255, 0.06); }
.btn > * { position: relative; z-index: 1; }

.btn-primary {
  background: var(--grad-v);
  color: #fff;
  box-shadow: 0 4px 24px rgba(120, 119, 255, 0.42), inset 0 1px 0 rgba(255,255,255,0.15);
  background-size: 200% 200%;
  animation: gradShift 6s ease infinite;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 36px rgba(120, 119, 255, 0.58), inset 0 1px 0 rgba(255,255,255,0.18);
}
.btn-primary:active { transform: translateY(-1px); }

.btn-ghost {
  background: var(--glass-2);
  border: 1px solid var(--border);
  color: var(--text-1);
  backdrop-filter: var(--glass-blur);
}
.btn-ghost:hover {
  color: var(--text-0);
  border-color: var(--border-h);
  background: var(--glass-3);
  box-shadow: 0 0 20px rgba(120, 119, 255, 0.1);
}

.btn-outline-violet {
  background: transparent;
  border: 1.5px solid rgba(120, 119, 255, 0.45);
  color: var(--violet-l);
}
.btn-outline-violet:hover {
  background: var(--violet-xs);
  border-color: var(--violet);
  box-shadow: 0 0 18px rgba(120, 119, 255, 0.2);
}

.btn-danger {
  background: var(--flare-xs);
  border: 1px solid rgba(255, 76, 110, 0.32);
  color: #ff7390;
}
.btn-danger:hover {
  background: var(--flare);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(255, 76, 110, 0.4);
}

.btn-success {
  background: var(--aurora-xs);
  border: 1px solid rgba(61, 255, 163, 0.28);
  color: var(--aurora);
}
.btn-success:hover {
  background: rgba(61, 255, 163, 0.15);
  box-shadow: 0 6px 20px rgba(61, 255, 163, 0.25);
}

.btn-lg  { padding: 16px 36px; font-size: 15.5px; border-radius: var(--rm); }
.btn-sm  { padding: 7px 15px; font-size: 12.5px; border-radius: var(--rxs); }
.btn-xs  { padding: 5px 12px; font-size: 11.5px; border-radius: var(--rxxs); }
.btn-icon { width: 40px; height: 40px; padding: 0; border-radius: var(--rxs); }
.btn-icon-sm { width: 32px; height: 32px; padding: 0; border-radius: var(--rxxs); }

.btn:disabled { opacity: 0.28; pointer-events: none; }
.btn-full { width: 100%; }

/* Loading state */
.btn.loading { pointer-events: none; }
.btn.loading::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.25);
}

/* ══════════════════════════════════════════════
   BADGES
══════════════════════════════════════════════ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 11px;
  border-radius: 6px;
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  border: 1px solid currentColor;
  font-family: var(--fh);
  transition: var(--tr-fast);
}
.badge-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: currentColor;
  animation: dotBlink 2.2s ease infinite;
}

.badge-quant     { color: var(--solar);    background: var(--solar-xs); }
.badge-logical   { color: var(--plasma);   background: var(--plasma-xs); }
.badge-technical { color: var(--violet-l); background: var(--violet-xs); }
.badge-easy      { color: var(--aurora);   background: var(--aurora-xs); }
.badge-medium    { color: var(--solar);    background: var(--solar-xs); }
.badge-hard      { color: var(--flare);    background: var(--flare-xs); }
.badge-new       { color: var(--nebula);   background: var(--nebula-xs); }

/* ══════════════════════════════════════════════
   NAVBAR
══════════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(20px, 3vw, 44px);
  background: rgba(2, 4, 8, 0.68);
  backdrop-filter: var(--glass-frost);
  -webkit-backdrop-filter: var(--glass-frost);
  border-bottom: 1px solid rgba(255,255,255,0.044);
  transition: background 0.3s ease, border-color 0.3s ease;
}

/* Thin accent line beneath nav */
.navbar::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(120,119,255,0.35) 30%, rgba(0,229,255,0.3) 70%, transparent 100%);
  animation: lineSlide 1s var(--ease) both;
}

.navbar.scrolled {
  background: rgba(2, 4, 8, 0.92);
  border-bottom-color: var(--border);
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
}

.nav-brand {
  font-family: var(--fh);
  font-weight: 900;
  font-size: 20px;
  color: var(--text-0);
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  letter-spacing: -0.6px;
  flex-shrink: 0;
}

.nav-logo {
  width: 38px; height: 38px;
  border-radius: 12px;
  background: var(--grad-v);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  box-shadow: 0 4px 18px rgba(120, 119, 255, 0.55), inset 0 1px 0 rgba(255,255,255,0.2);
  animation: floatY 4.5s ease-in-out infinite;
  flex-shrink: 0;
  position: relative;
}
.nav-logo::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 14px;
  background: var(--grad-v);
  opacity: 0.3;
  z-index: -1;
  animation: pulseGlow 3s ease-in-out infinite;
}

.nav-center {
  display: flex;
  align-items: center;
  gap: 2px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.nav-link {
  padding: 8px 17px;
  border-radius: var(--rxs);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-2);
  cursor: pointer;
  transition: var(--tr);
  position: relative;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}
.nav-link:hover { color: var(--text-0); background: rgba(255,255,255,0.04); }
.nav-link.active {
  color: var(--text-0);
  background: rgba(120, 119, 255, 0.12);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 50%;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--violet);
  transform: translateX(-50%);
  box-shadow: 0 0 8px var(--violet);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-timer {
  font-family: var(--fm);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--plasma);
  padding: 7px 15px;
  background: rgba(0, 229, 255, 0.07);
  border: 1px solid rgba(0, 229, 255, 0.22);
  border-radius: var(--rxs);
  display: none;
  align-items: center;
  gap: 8px;
  letter-spacing: 2px;
  transition: var(--tr);
}
.nav-timer.active { display: flex; }
.nav-timer.warn {
  color: var(--flare);
  border-color: rgba(255, 76, 110, 0.38);
  background: rgba(255, 76, 110, 0.07);
  animation: warnPulse 1.3s infinite;
}

.timer-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: currentColor;
  animation: pulseGlow 1.4s infinite;
  flex-shrink: 0;
}

.user-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 15px 5px 6px;
  border-radius: 40px;
  background: var(--glass-2);
  border: 1px solid var(--border);
  transition: var(--tr);
  cursor: pointer;
}
.user-pill:hover {
  border-color: var(--border-glow);
  background: var(--glass-3);
}

.user-ava {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--grad-a);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11.5px;
  font-weight: 800;
  color: #fff;
  font-family: var(--fh);
  box-shadow: 0 2px 10px rgba(193, 98, 255, 0.4);
  flex-shrink: 0;
}

.user-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-0);
  font-family: var(--fh);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--rxs);
  transition: var(--tr);
  -webkit-tap-highlight-color: transparent;
}
.nav-toggle:hover { background: var(--glass-2); }
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-2);
  border-radius: 2px;
  transition: var(--tr);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); background: var(--text-0); }
.nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); background: var(--text-0); }

/* ══════════════════════════════════════════════
   HOME PAGE
══════════════════════════════════════════════ */
#page-home { padding-top: 68px; }

/* ── HERO ── */
.hero {
  text-align: center;
  padding: clamp(64px, 12vw, 108px) 0 clamp(56px, 8vw, 80px);
  position: relative;
  overflow: hidden;
}

.hero-aurora {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.hero-aurora::before {
  content: '';
  position: absolute;
  top: -55%; left: 50%;
  transform: translateX(-50%);
  width: min(960px, 130vw); height: 640px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(120, 119, 255, 0.15) 0%, rgba(0, 229, 255, 0.08) 38%, transparent 68%);
  animation: pulseGlow 7s ease-in-out infinite;
}
.hero-aurora::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle 340px at 18% 65%, rgba(193, 98, 255, 0.07) 0%, transparent 70%),
    radial-gradient(circle 280px at 82% 38%, rgba(61, 255, 163, 0.045) 0%, transparent 70%),
    radial-gradient(circle 200px at 50% 90%, rgba(255, 187, 56, 0.03) 0%, transparent 70%);
}

/* Floating orbs */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(60px);
}
.hero-orb-1 {
  width: 300px; height: 300px;
  top: 5%; left: -8%;
  background: radial-gradient(circle, rgba(120,119,255,0.18), transparent 70%);
  animation: floatY 8s ease-in-out infinite;
}
.hero-orb-2 {
  width: 240px; height: 240px;
  bottom: 5%; right: -6%;
  background: radial-gradient(circle, rgba(0,229,255,0.14), transparent 70%);
  animation: floatY 10s ease-in-out 2s infinite;
}
.hero-orb-3 {
  width: 180px; height: 180px;
  top: 30%; right: 8%;
  background: radial-gradient(circle, rgba(193,98,255,0.1), transparent 70%);
  animation: floatX 7s ease-in-out 1s infinite;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: clamp(24px, 4vw, 36px);
  padding: 8px 22px;
  border-radius: 40px;
  background: rgba(120, 119, 255, 0.07);
  border: 1px solid rgba(120, 119, 255, 0.28);
  font-size: 11.5px;
  font-weight: 700;
  color: var(--violet-l);
  letter-spacing: 1.2px;
  text-transform: uppercase;
  position: relative;
  z-index: 1;
  backdrop-filter: blur(12px);
  font-family: var(--fm);
  transition: var(--tr);
}
.hero-eyebrow:hover {
  border-color: rgba(120,119,255,0.5);
  background: rgba(120,119,255,0.1);
}

.eyebrow-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--violet-l);
  animation: pulseGlow 1.8s infinite;
  box-shadow: 0 0 8px var(--violet-l);
}

.hero h1 {
  font-size: clamp(40px, 7vw, 88px);
  font-weight: 900;
  margin-bottom: clamp(18px, 3vw, 28px);
  line-height: 1.03;
  letter-spacing: -2px;
  position: relative;
  z-index: 1;
}
.hero h1 em { font-style: normal; }

.hero-sub {
  font-size: clamp(15px, 2vw, 18.5px);
  color: var(--text-2);
  max-width: 580px;
  margin: 0 auto clamp(32px, 5vw, 48px);
  line-height: 1.82;
  position: relative;
  z-index: 1;
  font-weight: 400;
}

.hero-cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* ── Company Strip ── */
.trust-block { margin-top: clamp(48px, 7vw, 72px); position: relative; z-index: 1; }
.trust-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--text-4);
  margin-bottom: 22px;
  font-family: var(--fm);
}

.co-strip {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 0 clamp(0px, 4vw, 40px);
}

.co-chip {
  padding: 8px 20px;
  border-radius: 40px;
  font-family: var(--fh);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.3px;
  border: 1px solid var(--border);
  background: var(--glass);
  color: var(--text-2);
  transition: var(--tr);
  backdrop-filter: blur(12px);
  -webkit-tap-highlight-color: transparent;
}
.co-chip:hover { transform: translateY(-4px); box-shadow: 0 10px 24px rgba(0,0,0,0.5); }

.co-chip.google    { color: #6ba4f8; border-color: rgba(107,164,248,0.28); } .co-chip.google:hover    { background: rgba(107,164,248,0.07); box-shadow: 0 8px 24px rgba(107,164,248,0.15); }
.co-chip.amazon    { color: #ffaa44; border-color: rgba(255,170,68,0.28);  } .co-chip.amazon:hover    { background: rgba(255,170,68,0.07);  box-shadow: 0 8px 24px rgba(255,170,68,0.15); }
.co-chip.microsoft { color: #4dc1e6; border-color: rgba(77,193,230,0.28);  } .co-chip.microsoft:hover { background: rgba(77,193,230,0.07);  box-shadow: 0 8px 24px rgba(77,193,230,0.15); }
.co-chip.meta      { color: #6695ff; border-color: rgba(102,149,255,0.28); } .co-chip.meta:hover      { background: rgba(102,149,255,0.07); box-shadow: 0 8px 24px rgba(102,149,255,0.15); }
.co-chip.tcs       { color: #ffaa44; border-color: rgba(255,170,68,0.28);  } .co-chip.tcs:hover       { background: rgba(255,170,68,0.07); }
.co-chip.infosys   { color: #4dc1e6; border-color: rgba(77,193,230,0.28);  } .co-chip.infosys:hover   { background: rgba(77,193,230,0.07); }
.co-chip.wipro     { color: #c585ff; border-color: rgba(197,133,255,0.28); } .co-chip.wipro:hover     { background: rgba(197,133,255,0.07); }
.co-chip.cognizant { color: #7ab8ff; border-color: rgba(122,184,255,0.28); } .co-chip.cognizant:hover { background: rgba(122,184,255,0.07); }
.co-chip.accenture { color: #d090ff; border-color: rgba(208,144,255,0.28); } .co-chip.accenture:hover { background: rgba(208,144,255,0.07); }
.co-chip.capgemini { color: #44ddaa; border-color: rgba(68,221,170,0.28);  } .co-chip.capgemini:hover { background: rgba(68,221,170,0.07); }

/* ── STATS ── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: clamp(12px, 2vw, 18px);
  margin: clamp(48px, 7vw, 72px) 0;
}

.stat-box {
  padding: clamp(22px, 3vw, 32px) clamp(16px, 2vw, 24px);
  border-radius: var(--r);
  background: var(--ink-2);
  border: 1px solid var(--border);
  text-align: center;
  transition: var(--tr);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  cursor: default;
}
.stat-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad-v);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease);
}
.stat-box::after {
  content: '';
  position: absolute;
  inset: 0; border-radius: var(--r);
  background: radial-gradient(circle at 50% -10%, rgba(120,119,255,0.08) 0%, transparent 65%);
  opacity: 0;
  transition: opacity 0.3s;
}
.stat-box:hover {
  border-color: var(--border-glow);
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}
.stat-box:hover::before { transform: scaleX(1); }
.stat-box:hover::after  { opacity: 1; }

.sval {
  font-family: var(--fh);
  font-size: clamp(34px, 5vw, 46px);
  font-weight: 900;
  background: var(--grad-v);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.slbl {
  font-size: 10.5px;
  color: var(--text-3);
  font-weight: 700;
  margin-top: 8px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  font-family: var(--fm);
}

/* ── SECTION HEADER ── */
.sec-hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: clamp(20px, 3vw, 32px);
  padding-bottom: clamp(16px, 2vw, 22px);
  border-bottom: 1px solid var(--border);
  gap: 12px;
  flex-wrap: wrap;
}
.sec-hdr h2 { font-size: clamp(20px, 3vw, 28px); font-weight: 900; }
.sec-hdr-sub {
  font-size: 12px;
  color: var(--text-3);
  font-family: var(--fm);
  white-space: nowrap;
}

/* ── FILTER ROW ── */
.filter-row {
  display: flex;
  gap: 5px;
  margin-bottom: clamp(20px, 3vw, 34px);
  background: var(--ink-3);
  padding: 5px;
  border-radius: var(--rm);
  border: 1px solid var(--border);
  width: fit-content;
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: none;
}
.filter-row::-webkit-scrollbar { display: none; }

.filter-tab {
  padding: 9px 20px;
  border-radius: var(--rxs);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  cursor: pointer;
  transition: var(--tr);
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}
.filter-tab:hover { color: var(--text-0); }
.filter-tab.active {
  background: var(--glass-3);
  color: var(--text-0);
  border: 1px solid var(--border-glow);
  box-shadow: 0 2px 12px rgba(120,119,255,0.12);
}

/* ── MOCK CARDS ── */
.mocks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 360px), 1fr));
  gap: clamp(16px, 2.5vw, 26px);
  margin-bottom: clamp(48px, 8vw, 90px);
}

.mock-card {
  background: var(--ink-2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: clamp(22px, 3vw, 30px);
  cursor: pointer;
  transition: var(--tr);
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  -webkit-tap-highlight-color: transparent;
}
/* Top color accent */
.mock-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 1.5px;
  background: var(--co-grad, var(--grad-v));
  opacity: 0.9;
  transition: opacity 0.3s;
}
/* Left accent */
.mock-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; bottom: 0; width: 1.5px;
  background: var(--co-grad, var(--grad-v));
  opacity: 0.35;
  transition: opacity 0.3s;
}
.mock-card:hover {
  transform: translateY(-8px) scale(1.006);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-hover), 0 0 0 1px var(--border-glow);
}
.mock-card:hover::before { opacity: 1; }
.mock-card:hover::after  { opacity: 0.6; }

/* Glow background on hover */
.mock-card .card-glow {
  position: absolute;
  inset: 0;
  border-radius: var(--r);
  background: radial-gradient(ellipse 60% 40% at 50% 0%, rgba(120,119,255,0.06) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}
.mock-card:hover .card-glow { opacity: 1; }

.mock-card-top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: clamp(16px, 2.5vw, 22px);
}
.mock-co-icon {
  width: 50px; height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}
.mock-co-icon::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.06);
  border-radius: 14px;
}

.mock-co-name {
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-family: var(--fh);
}
.mock-co-cutoff {
  font-size: 11px;
  color: var(--text-3);
  margin-top: 3px;
  font-family: var(--fm);
}

.mock-card h3 { font-size: clamp(15px, 2vw, 17px); font-weight: 700; margin-bottom: 10px; }
.mock-card p  { font-size: 13px; color: var(--text-2); line-height: 1.68; flex-grow: 1; margin-bottom: clamp(16px, 2.5vw, 24px); }

.mock-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: clamp(14px, 2vw, 20px);
  padding: clamp(10px, 2vw, 16px);
  background: rgba(0,0,0,0.28);
  border-radius: var(--rs);
  border: 1px solid rgba(255,255,255,0.04);
}
.msr-item { text-align: center; }
.msr-val  { font-family: var(--fm); font-size: 14px; font-weight: 600; color: var(--text-0); }
.msr-lbl  { font-size: 9px; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.7px; margin-top: 3px; }

.diff-bar {
  display: flex;
  height: 4px;
  border-radius: 4px;
  overflow: hidden;
  gap: 2px;
  margin-bottom: clamp(14px, 2vw, 20px);
}
.db-e { background: var(--aurora); }
.db-m { background: var(--solar); }
.db-h { background: var(--flare); }

/* ══════════════════════════════════════════════
   TEST PAGE
══════════════════════════════════════════════ */
#page-test { padding-top: 68px; }

.test-topbar {
  background: rgba(6, 10, 16, 0.97);
  border-bottom: 1px solid var(--border);
  padding: clamp(10px, 2vw, 14px) clamp(16px, 3vw, 36px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(20px);
  flex-wrap: wrap;
  gap: 10px;
}

.test-breadcrumb {
  font-size: 13px;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.test-breadcrumb strong { color: var(--text-0); font-weight: 700; }
.test-breadcrumb .sep { color: var(--text-4); }

.test-chips {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.tbar-chip {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 14px;
  border-radius: 30px;
  border: 1px solid var(--border);
  background: var(--glass);
  font-size: 12px;
  color: var(--text-1);
  font-family: var(--fm);
  white-space: nowrap;
}
.tbar-chip strong { color: var(--text-0); }

/* Layout */
.test-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  height: calc(100vh - 114px);
}

.q-area {
  padding: clamp(28px, 5vw, 52px) clamp(24px, 6vw, 68px) clamp(90px, 12vw, 120px);
  overflow-y: auto;
  position: relative;
  scroll-behavior: smooth;
}
.q-area::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.07); }

.sb-area {
  border-left: 1px solid var(--border);
  background: var(--ink-2);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Progress bar */
.test-progress-bar {
  height: 3px;
  background: rgba(255,255,255,0.04);
  position: absolute;
  top: 0; left: 0; right: 0;
}
.test-progress-fill {
  height: 100%;
  background: var(--grad-v);
  transition: width 0.6s var(--ease);
  position: relative;
}
.test-progress-fill::after {
  content: '';
  position: absolute;
  right: 0; top: 50%;
  transform: translateY(-50%);
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--plasma);
  box-shadow: 0 0 10px var(--plasma);
}

/* Question */
.q-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: clamp(22px, 4vw, 36px);
  gap: 12px;
  flex-wrap: wrap;
}
.q-left { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

.q-number {
  font-family: var(--fh);
  font-size: clamp(32px, 5vw, 42px);
  font-weight: 900;
  background: var(--grad-v);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.q-text {
  font-size: clamp(16px, 2.5vw, 19px);
  font-weight: 400;
  color: var(--text-0);
  margin-bottom: clamp(24px, 4vw, 36px);
  line-height: 1.82;
  letter-spacing: -0.1px;
}

.opts {
  display: flex;
  flex-direction: column;
  gap: clamp(10px, 1.5vw, 14px);
}

.opt {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 20px);
  padding: clamp(14px, 2vw, 18px) clamp(16px, 2.5vw, 24px);
  border-radius: var(--rm);
  border: 1.5px solid var(--border);
  background: rgba(255,255,255,0.01);
  cursor: pointer;
  transition: var(--tr);
  font-size: clamp(14px, 2vw, 15.5px);
  color: var(--text-1);
  position: relative;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}
.opt::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(120,119,255,0);
  transition: background 0.25s;
}
.opt:hover { border-color: rgba(120,119,255,0.48); color: var(--text-0); }
.opt:hover::before { background: rgba(120,119,255,0.04); }
.opt:active { transform: scale(0.992); }

.opt.selected {
  border-color: var(--violet);
  background: rgba(120,119,255,0.08);
  color: var(--text-0);
  box-shadow: 0 0 24px rgba(120,119,255,0.14), inset 0 0 0 1px rgba(120,119,255,0.06);
}
.opt.correct {
  border-color: var(--aurora);
  background: rgba(61,255,163,0.07);
  color: var(--aurora);
  box-shadow: 0 0 20px rgba(61,255,163,0.12);
}
.opt.wrong {
  border-color: var(--flare);
  background: rgba(255,76,110,0.07);
  color: #ff8099;
  box-shadow: 0 0 20px rgba(255,76,110,0.1);
}

.opt-key {
  width: 30px; height: 30px; min-width: 30px;
  border-radius: 8px;
  border: 1.5px solid var(--text-3);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 700;
  font-family: var(--fm);
  color: var(--text-3);
  transition: var(--tr);
}
.opt.selected .opt-key { border-color: var(--violet); color: var(--violet); background: rgba(120,119,255,0.14); }
.opt.correct  .opt-key { border-color: var(--aurora); color: var(--aurora); background: rgba(61,255,163,0.12); }
.opt.wrong    .opt-key { border-color: var(--flare);  color: var(--flare);  background: rgba(255,76,110,0.1); }

/* Phase tag */
.phase-tag {
  padding: 5px 13px;
  border-radius: var(--rxs);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--fh);
}
.pt-easy   { background: rgba(61,255,163,0.08);  color: var(--aurora); border: 1px solid rgba(61,255,163,0.22); }
.pt-medium { background: rgba(255,187,56,0.08);  color: var(--solar);  border: 1px solid rgba(255,187,56,0.22); }
.pt-hard   { background: rgba(255,76,110,0.08);  color: var(--flare);  border: 1px solid rgba(255,76,110,0.22); }

/* Test Footer */
.test-footer {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: clamp(14px, 2vw, 22px) clamp(20px, 5vw, 64px);
  background: rgba(2,4,8,0.9);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(24px);
  gap: 12px;
  flex-wrap: wrap;
}

.mark-chip {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--rxs);
  font-size: 13px;
  font-weight: 700;
  background: var(--solar-xs);
  border: 1px solid rgba(255,187,56,0.22);
  color: var(--solar);
  cursor: pointer;
  transition: var(--tr);
  -webkit-tap-highlight-color: transparent;
}
.mark-chip:hover,
.mark-chip.active { background: rgba(255,187,56,0.14); border-color: var(--solar); }

/* ── SIDEBAR ── */
.sb-section {
  padding: clamp(14px, 2vw, 20px);
  border-bottom: 1px solid var(--border);
}
.sb-title {
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.8px;
  color: var(--text-3);
  margin-bottom: clamp(10px, 1.5vw, 16px);
  font-family: var(--fm);
}

.sb-prog-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 9px;
  font-size: 12px;
}
.sb-prog-bar { height: 5px; background: var(--ink); border-radius: 3px; overflow: hidden; }
.sb-prog-fill { height: 100%; background: var(--grad-v); border-radius: 3px; transition: width 0.5s var(--ease); }

.pal-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 7px;
  margin-bottom: clamp(12px, 2vw, 18px);
}
.pal-btn {
  aspect-ratio: 1;
  border-radius: var(--rxs);
  font-family: var(--fm);
  font-size: 11px;
  font-weight: 600;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-3);
  transition: var(--tr);
  -webkit-tap-highlight-color: transparent;
}
.pal-btn:hover { border-color: var(--violet-l); color: var(--text-0); background: rgba(120,119,255,0.05); }
.pal-btn.cur { background: var(--violet); border-color: var(--violet); color: #fff; box-shadow: 0 0 14px rgba(120,119,255,0.55); }
.pal-btn.ans { background: rgba(61,255,163,0.08); border-color: var(--aurora); color: var(--aurora); }
.pal-btn.mrk { background: rgba(255,187,56,0.08); border-color: var(--solar); color: var(--solar); }
.pal-btn.ans.mrk { background: rgba(255,187,56,0.08); border-color: var(--solar); color: var(--solar); }

.leg-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.leg-row  { display: flex; align-items: center; gap: 7px; font-size: 11px; color: var(--text-2); }
.leg-dot  { width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0; }
.ld-cur { background: var(--violet); }
.ld-ans { background: rgba(61,255,163,0.45); border: 1px solid var(--aurora); }
.ld-mrk { background: rgba(255,187,56,0.45); border: 1px solid var(--solar); }
.ld-un  { border: 1px solid var(--border); }

.co-strip-sb {
  padding: clamp(10px, 1.5vw, 14px) clamp(12px, 1.5vw, 16px);
  border-radius: var(--rxs);
  border: 1px solid var(--border);
  background: var(--glass-2);
}
.co-strip-sb .co-name   { font-size: 13px; font-weight: 700; margin-bottom: 4px; font-family: var(--fh); }
.co-strip-sb .co-detail { font-size: 11px; color: var(--text-3); line-height: 1.58; }

.sb-bottom {
  padding: clamp(12px, 2vw, 18px);
  margin-top: auto;
  border-top: 1px solid var(--border);
}

/* ══════════════════════════════════════════════
   RESULT PAGE
══════════════════════════════════════════════ */
#page-result { padding: clamp(80px, 12vw, 100px) 0 clamp(60px, 8vw, 90px); }

.result-grid {
  display: grid;
  grid-template-columns: 3fr 1.25fr;
  gap: clamp(16px, 2.5vw, 28px);
}

/* Score Hero */
.score-hero {
  background: var(--ink-2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: clamp(28px, 4vw, 44px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  gap: clamp(20px, 3vw, 28px);
  box-shadow: var(--shadow-card);
  flex-wrap: wrap;
}
.score-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad-p);
}
.score-hero::after {
  content: '';
  position: absolute;
  top: 0; left: 0; bottom: 0; right: 0;
  background: radial-gradient(ellipse 55% 45% at 78% 52%, rgba(120,119,255,0.07) 0%, transparent 65%);
  pointer-events: none;
}

.score-info { position: relative; z-index: 1; flex: 1; min-width: 200px; }
.score-info h2 { font-size: clamp(24px, 3vw, 32px); margin-bottom: 8px; }
.score-info p  { font-size: 13.5px; color: var(--text-2); margin-bottom: clamp(18px, 3vw, 26px); }

.score-pills { display: flex; gap: 10px; flex-wrap: wrap; }
.spl {
  padding: 8px 18px;
  border-radius: var(--rxs);
  font-size: 13px;
  font-weight: 700;
  font-family: var(--fm);
  display: flex;
  align-items: center;
  gap: 8px;
}
.spl-c { background: rgba(61,255,163,0.07);   border: 1px solid rgba(61,255,163,0.22);   color: var(--aurora); }
.spl-w { background: rgba(255,76,110,0.07);    border: 1px solid rgba(255,76,110,0.22);   color: #ff809a; }
.spl-s { background: rgba(107,122,153,0.07);   border: 1px solid rgba(107,122,153,0.22);  color: var(--text-1); }
.spl-a { background: rgba(120,119,255,0.07);   border: 1px solid rgba(120,119,255,0.22);  color: var(--violet-l); }

/* Score Ring */
.score-ring-wrap {
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.score-ring-svg { width: clamp(130px, 18vw, 164px); height: clamp(130px, 18vw, 164px); transform: rotate(-90deg); }
.ring-track { fill: none; stroke: rgba(255,255,255,0.06); stroke-width: 10; }
.ring-fill  {
  fill: none; stroke-width: 10; stroke-linecap: round;
  stroke-dasharray: 440;
  transition: stroke-dashoffset 1.6s var(--ease);
}
.ring-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.ring-pct { font-family: var(--fh); font-size: clamp(36px, 5vw, 46px); font-weight: 900; color: var(--text-0); line-height: 1; }
.ring-lbl { font-size: 10px; color: var(--text-3); text-transform: uppercase; letter-spacing: 1.2px; margin-top: 4px; font-family: var(--fm); }

/* Topic Cards */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: clamp(14px, 2vw, 20px);
  margin-top: clamp(18px, 3vw, 24px);
}
.topic-card {
  padding: clamp(18px, 2.5vw, 24px);
  border-radius: var(--r);
  background: var(--ink-2);
  border: 1px solid var(--border);
  border-top: 3px solid var(--c, var(--violet));
  box-shadow: var(--shadow-card);
  transition: var(--tr);
}
.topic-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.topic-hdr   { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.topic-name  { font-size: 14px; font-weight: 800; color: var(--text-0); font-family: var(--fh); }
.topic-pct   { font-family: var(--fm); font-size: clamp(20px, 3vw, 26px); font-weight: 700; color: var(--c, var(--violet)); }
.topic-pbar  { height: 5px; background: var(--ink-3); border-radius: 3px; overflow: hidden; margin-bottom: 12px; }
.topic-pfill { height: 100%; border-radius: 3px; transition: width 1s var(--ease); }
.topic-nums  { display: flex; gap: 14px; font-size: 12px; color: var(--text-2); font-family: var(--fm); flex-wrap: wrap; }
.topic-verdict {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 11px;
  border-radius: var(--rxs);
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-top: 10px;
  font-family: var(--fh);
}
.tv-strong { background: rgba(61,255,163,0.08);   color: var(--aurora); }
.tv-avg    { background: rgba(255,187,56,0.08);   color: var(--solar); }
.tv-weak   { background: rgba(255,76,110,0.08);   color: var(--flare); }

/* Panel */
.panel {
  background: var(--ink-2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: clamp(22px, 3vw, 30px);
  margin-top: clamp(16px, 2.5vw, 24px);
  box-shadow: var(--shadow-card);
}
.panel-hdr {
  font-size: clamp(14px, 2vw, 17px);
  font-weight: 800;
  margin-bottom: clamp(16px, 2.5vw, 22px);
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--fh);
}

/* Benchmark */
.bench-row   { display: flex; align-items: center; gap: 14px; margin-bottom: 15px; flex-wrap: wrap; }
.bench-co    { width: 100px; font-size: 12.5px; font-weight: 700; flex-shrink: 0; font-family: var(--fh); }
.bench-track {
  flex: 1; min-width: 120px;
  height: 16px; background: var(--ink-3);
  border-radius: 8px; position: relative; overflow: hidden;
}
.bench-fill  { height: 100%; border-radius: 8px; position: absolute; top: 0; left: 0; transition: width 1.2s var(--ease); }
.bench-user-dot {
  position: absolute; top: 50%;
  width: 14px; height: 14px;
  border-radius: 50%; background: #fff;
  transform: translate(-50%, -50%); z-index: 3;
  border: 2.5px solid var(--ink-2);
  box-shadow: 0 0 12px rgba(255,255,255,0.65);
  transition: left 1.2s var(--ease);
}
.bench-status { font-size: 12px; font-weight: 800; min-width: 42px; text-align: right; font-family: var(--fm); }

/* Diff breakdown */
.diff-rows { display: flex; flex-direction: column; gap: clamp(10px, 1.5vw, 16px); }
.drow      { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.drow-lbl  { width: 76px; font-size: 12px; font-weight: 800; flex-shrink: 0; text-transform: uppercase; letter-spacing: 0.5px; font-family: var(--fh); }
.drow-track { flex: 1; min-width: 120px; height: 18px; background: var(--ink-3); border-radius: 5px; overflow: hidden; }
.drow-fill  { height: 100%; border-radius: 5px; display: flex; align-items: center; padding-left: 10px; }
.drow-fill span { font-size: 9.5px; font-weight: 800; color: rgba(0,0,0,0.65); white-space: nowrap; }
.drow-cnt  { font-size: 12px; color: var(--text-2); min-width: 80px; text-align: right; flex-shrink: 0; font-family: var(--fm); }

/* Insights */
.ins-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(10px, 2vw, 16px); }
.ins-card {
  padding: clamp(14px, 2vw, 20px);
  border-radius: var(--rs);
  border: 1px solid var(--border);
  background: var(--glass-2);
  transition: var(--tr);
}
.ins-card:hover { transform: translateY(-3px); border-color: var(--border-glow); }
.ins-card.s { border-left: 3px solid var(--aurora); }
.ins-card.w { border-left: 3px solid var(--flare); }
.ins-card.n { border-left: 3px solid var(--solar); }
.ins-ico    { font-size: 20px; margin-bottom: 8px; }
.ins-title  { font-size: 13.5px; font-weight: 800; color: var(--text-0); margin-bottom: 5px; font-family: var(--fh); }
.ins-text   { font-size: 12px; color: var(--text-2); line-height: 1.58; }

/* AI Panel */
.ai-panel {
  border-color: rgba(120,119,255,0.22);
  background: linear-gradient(180deg, rgba(120,119,255,0.04) 0%, transparent 100%);
}
.sugg-item {
  display: flex;
  gap: 14px;
  padding: clamp(12px, 2vw, 16px);
  border-radius: var(--rxs);
  background: rgba(0,0,0,0.28);
  border: 1px solid var(--border);
  margin-bottom: 11px;
  transition: var(--tr);
}
.sugg-item:hover { border-color: var(--border-glow); background: rgba(120,119,255,0.04); }
.sugg-ico  { font-size: 18px; flex-shrink: 0; margin-top: 2px; }
.sugg-text { font-size: 13px; color: var(--text-1); line-height: 1.68; }
.sugg-text strong { color: var(--text-0); }

/* ══════════════════════════════════════════════
   HISTORY PAGE
══════════════════════════════════════════════ */
#page-history { padding: clamp(80px, 12vw, 100px) 0 clamp(60px, 8vw, 90px); }

.hist-hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: clamp(24px, 4vw, 40px);
  flex-wrap: wrap;
  gap: 14px;
}

.hist-empty { text-align: center; padding: clamp(60px, 10vw, 100px) 20px; color: var(--text-2); }
.hist-empty .empty-icon {
  font-size: clamp(48px, 8vw, 68px);
  margin-bottom: 22px;
  filter: drop-shadow(0 0 24px rgba(120,119,255,0.35));
  display: block;
}

.trend-card {
  background: var(--ink-2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: clamp(20px, 3vw, 30px);
  margin-bottom: clamp(20px, 3vw, 28px);
  box-shadow: var(--shadow-card);
}

.hist-list { display: flex; flex-direction: column; gap: clamp(12px, 2vw, 18px); }

.hist-item {
  background: var(--ink-2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: clamp(18px, 2.5vw, 24px) clamp(20px, 3vw, 30px);
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.5vw, 22px);
  transition: var(--tr);
  box-shadow: var(--shadow-card);
  cursor: pointer;
  flex-wrap: wrap;
}
.hist-item:hover {
  border-color: var(--border-glow);
  transform: translateX(8px);
  box-shadow: var(--shadow-hover);
}

.hist-rank {
  width: clamp(44px, 7vw, 54px);
  height: clamp(44px, 7vw, 54px);
  border-radius: 14px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--fh);
  font-size: clamp(18px, 2.5vw, 22px);
  font-weight: 900;
  color: #fff;
}

.hist-info { flex: 1; min-width: 150px; }
.hist-info h4 {
  font-size: clamp(14px, 2vw, 15.5px);
  font-weight: 800;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-family: var(--fh);
}
.hist-info p { font-size: 12px; color: var(--text-3); }

.hist-minis {
  display: flex;
  gap: 14px;
  margin-top: 9px;
  flex-wrap: wrap;
}
.hist-mini { display: flex; align-items: center; gap: 6px; font-size: 11.5px; color: var(--text-2); font-family: var(--fm); }
.mini-dot  { width: 8px; height: 8px; border-radius: 3px; flex-shrink: 0; }

.hist-score-wrap { text-align: right; flex-shrink: 0; }
.hist-big-score {
  font-family: var(--fh);
  font-size: clamp(26px, 4vw, 34px);
  font-weight: 900;
  background: var(--grad-v);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hist-score-sub { font-size: 11px; color: var(--text-3); font-family: var(--fm); }

.pass-pill {
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-family: var(--fh);
}
.pp-pass { background: rgba(61,255,163,0.08);  color: var(--aurora); border: 1px solid rgba(61,255,163,0.22); }
.pp-fail { background: rgba(255,76,110,0.08);  color: #ff809a; border: 1px solid rgba(255,76,110,0.22); }

/* ══════════════════════════════════════════════
   DIVIDER
══════════════════════════════════════════════ */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--border) 20%, var(--border) 80%, transparent 100%);
  margin: clamp(32px, 5vw, 52px) 0;
}

/* ══════════════════════════════════════════════
   MODAL & OVERLAY
══════════════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0; z-index: 3000;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(18px) saturate(1.5);
  display: none;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 4vw, 24px);
}
.modal-overlay.active { display: flex; animation: fadeIn 0.22s ease; }

.modal {
  background: var(--ink-2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: clamp(28px, 5vw, 40px);
  max-width: 460px;
  width: 100%;
  box-shadow: var(--shadow-float);
  animation: popIn 0.28s var(--ease);
  position: relative;
  overflow: hidden;
}
.modal::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad-p);
}
.modal h3 { font-size: clamp(20px, 3vw, 24px); margin-bottom: 12px; }
.modal p  { font-size: 14px; color: var(--text-1); margin-bottom: clamp(22px, 3vw, 30px); line-height: 1.7; }
.modal-actions { display: flex; gap: 11px; justify-content: flex-end; flex-wrap: wrap; }

/* ══════════════════════════════════════════════
   TOAST NOTIFICATIONS
══════════════════════════════════════════════ */
.toast-wrap {
  position: fixed;
  bottom: clamp(16px, 3vw, 28px);
  right: clamp(16px, 3vw, 28px);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
  max-width: min(380px, calc(100vw - 32px));
}
.toast {
  padding: clamp(12px, 2vw, 16px) clamp(16px, 2.5vw, 22px);
  border-radius: var(--rs);
  background: rgba(9, 14, 24, 0.98);
  border: 1px solid var(--border);
  color: var(--text-0);
  font-size: 13.5px;
  box-shadow: var(--shadow-float);
  display: flex;
  align-items: center;
  gap: 12px;
  animation: slideInRight 0.3s var(--ease);
  min-width: 240px;
  width: 100%;
  backdrop-filter: blur(24px);
  pointer-events: all;
  position: relative;
  overflow: hidden;
}
.toast::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,0.02) 0%, transparent 100%);
  pointer-events: none;
}
.toast.success { border-left: 3px solid var(--aurora); }
.toast.warn    { border-left: 3px solid var(--solar); }
.toast.error   { border-left: 3px solid var(--flare); }
.toast.info    { border-left: 3px solid var(--violet); }

.toast-icon { font-size: 18px; flex-shrink: 0; }
.toast-msg  { flex: 1; line-height: 1.5; }
.toast-close {
  flex-shrink: 0;
  width: 22px; height: 22px;
  border-radius: 5px;
  background: rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--text-2);
  cursor: pointer;
  transition: var(--tr-fast);
}
.toast-close:hover { background: rgba(255,255,255,0.12); color: var(--text-0); }

/* ══════════════════════════════════════════════
   SKELETON LOADERS
══════════════════════════════════════════════ */
.skeleton {
  background: linear-gradient(90deg, var(--ink-3) 0%, rgba(255,255,255,0.04) 50%, var(--ink-3) 100%);
  background-size: 400% 100%;
  animation: shimmer 1.8s ease-in-out infinite;
  border-radius: var(--rxs);
}

/* ══════════════════════════════════════════════
   CHIP / TAG
══════════════════════════════════════════════ */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 40px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--glass);
  color: var(--text-2);
  transition: var(--tr-fast);
}
.chip-violet { border-color: rgba(120,119,255,0.3); color: var(--violet-l); background: var(--violet-xs); }
.chip-plasma { border-color: rgba(0,229,255,0.28);  color: var(--plasma);   background: var(--plasma-xs); }
.chip-aurora { border-color: rgba(61,255,163,0.28); color: var(--aurora);   background: var(--aurora-xs); }
.chip-solar  { border-color: rgba(255,187,56,0.28); color: var(--solar);    background: var(--solar-xs); }
.chip-flare  { border-color: rgba(255,76,110,0.28); color: var(--flare);    background: var(--flare-xs); }

/* ══════════════════════════════════════════════
   RESPONSIVE — TABLET (≤960px)
══════════════════════════════════════════════ */
@media (max-width: 960px) {
  /* Test layout */
  .test-layout {
    grid-template-columns: 1fr;
    height: auto;
    min-height: calc(100vh - 114px);
  }
  .sb-area {
    border-left: none;
    border-top: 1px solid var(--border);
    max-height: 320px;
    overflow-y: auto;
  }

  /* Results */
  .result-grid { grid-template-columns: 1fr; }

  /* Mocks */
  .mocks-grid { grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); }

  /* Insight grid */
  .ins-grid { grid-template-columns: 1fr; }

  /* Score hero */
  .score-hero { flex-direction: column; align-items: flex-start; }

  /* Nav center reposition */
  .nav-center { position: static; transform: none; }
}

/* ══════════════════════════════════════════════
   RESPONSIVE — MOBILE (≤768px)
══════════════════════════════════════════════ */
@media (max-width: 768px) {
  :root { --r: 18px; --rm: 14px; --rs: 10px; }

  /* Navbar */
  .navbar { padding: 0 18px; height: 60px; }

  .nav-center {
    display: none;
    position: fixed;
    top: 60px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(2, 4, 8, 0.99);
    padding: 12px 16px 20px;
    border-bottom: 1px solid var(--border);
    z-index: 999;
    gap: 4px;
    backdrop-filter: blur(24px);
    animation: fadeDown 0.22s var(--ease);
    box-shadow: 0 20px 40px rgba(0,0,0,0.7);
  }
  .nav-center.open { display: flex; }

  .nav-link {
    padding: 11px 16px;
    border-radius: var(--rxs);
    font-size: 14.5px;
    text-align: left;
  }
  .nav-link.active::after { display: none; }
  .nav-link.active { background: rgba(120,119,255,0.1); border-left: 3px solid var(--violet); }

  .nav-toggle { display: flex; }

  .user-name { display: none; }
  .user-pill { padding: 5px; border-radius: 50%; }

  /* Pages */
  #page-home    { padding-top: 60px; }
  #page-result,
  #page-history { padding-top: 80px; }

  /* Hero */
  .hero { padding: 48px 0 38px; }
  .hero h1 { letter-spacing: -1px; }

  /* Stats */
  .stats-row { grid-template-columns: repeat(3, 1fr); }

  /* Test */
  .q-area        { padding: 24px 18px 104px; }
  .test-footer   { padding: 14px 18px; gap: 10px; }
  .test-topbar   { padding: 10px 16px; }
  .test-breadcrumb { font-size: 12px; }
  .tbar-chip     { padding: 5px 11px; font-size: 11px; }

  /* Results */
  .score-hero  { flex-direction: column; align-items: center; text-align: center; }
  .score-pills { justify-content: center; }
  .topic-grid  { grid-template-columns: 1fr; }
  .bench-co    { width: 80px; font-size: 12px; }

  /* History */
  .hist-item   { flex-wrap: wrap; }
  .hist-rank   { width: 44px; height: 44px; border-radius: 12px; }

  /* Modal */
  .modal { padding: 24px 20px; }

  /* Mocks */
  .mocks-grid { grid-template-columns: 1fr; }

  /* Co strip */
  .co-strip { gap: 8px; }
  .co-chip  { padding: 6px 14px; font-size: 11px; }
}

/* ══════════════════════════════════════════════
   RESPONSIVE — SMALL MOBILE (≤480px)
══════════════════════════════════════════════ */
@media (max-width: 480px) {
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .hero-cta  { flex-direction: column; align-items: center; }
  .hero-cta .btn { width: 100%; max-width: 280px; }

  .test-footer { flex-direction: column; align-items: stretch; text-align: center; }
  .test-footer .btn { width: 100%; }

  .modal-actions { flex-direction: column; }
  .modal-actions .btn { width: 100%; }

  .score-ring-svg { width: 120px; height: 120px; }
  .ring-pct { font-size: 32px; }

  .ins-grid { grid-template-columns: 1fr; }
  .pal-grid { grid-template-columns: repeat(6, 1fr); }

  .q-text { font-size: 15.5px; }
  .opt    { padding: 13px 15px; font-size: 14px; gap: 12px; }

  .diff-rows .drow { flex-wrap: wrap; }
  .drow-lbl  { width: 60px; font-size: 11px; }
  .drow-cnt  { min-width: auto; }
}

/* ══════════════════════════════════════════════
   UTILITY HELPERS
══════════════════════════════════════════════ */
.text-gradient { background: var(--grad-v); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.text-0 { color: var(--text-0); }
.text-1 { color: var(--text-1); }
.text-2 { color: var(--text-2); }
.text-3 { color: var(--text-3); }

.mono { font-family: var(--fm); }
.display { font-family: var(--fh); }

.flex       { display: flex; }
.flex-col   { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

.rounded    { border-radius: var(--r); }
.rounded-sm { border-radius: var(--rs); }
.rounded-xs { border-radius: var(--rxs); }

.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;
}

/* Prevent layout shift during font load */
@supports (font-display: swap) { }

/* High-contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --border: rgba(255, 255, 255, 0.18);
    --text-2: #8899bb;
    --text-3: #556070;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .bg-mesh { animation: none; }
  .nav-logo { animation: none; }
}