/* ============================================================
   Placito — GenZ Premium Design System v2.0
   Brand: Purple #3C2ABD + Orange #FF6000
   Dark-first, Glassmorphism, Bouncy animations
   ============================================================ */

/* ─── Google Fonts ─────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ─── Design Tokens ─────────────────────────────────────────── */
:root {
  /* ── Brand Colors ── */
  --purple:        #3C2ABD;
  --purple-light:  #5B46E0;
  --purple-pale:   #7B68EE;
  --purple-dark:   #2A1D8F;
  --purple-glow:   rgba(60,42,189,0.45);
  --purple-subtle: rgba(60,42,189,0.12);

  --orange:        #FF6000;
  --orange-light:  #FF7D2A;
  --orange-pale:   #FFB366;
  --orange-dark:   #CC4D00;
  --orange-glow:   rgba(255,96,0,0.40);
  --orange-subtle: rgba(255,96,0,0.12);

  /* Alias for backward compat */
  --violet:        var(--purple);
  --violet-light:  var(--purple-light);
  --violet-dark:   var(--purple-dark);
  --violet-glow:   var(--purple-glow);
  --violet-subtle: var(--purple-subtle);
  --cyan:          var(--orange);
  --cyan-light:    var(--orange-light);
  --cyan-glow:     var(--orange-glow);
  --cyan-subtle:   var(--orange-subtle);

  /* Supporting */
  --green:  #22c55e;
  --amber:  #f59e0b;
  --red:    #ef4444;
  --pink:   #ec4899;

  /* ── Backgrounds (Dark) ── */
  --bg-0:         #07070f;
  --bg-1:         #0d0d1e;
  --bg-2:         #121228;
  --bg-card:      #16162e;
  --bg-card-hover:#1e1e3a;
  --bg-glass:     rgba(255,255,255,0.04);
  --bg-glass-hover: rgba(255,255,255,0.08);

  /* ── Text ── */
  --text-1: #f0f0ff;
  --text-2: #c8c8e8;
  --text-3: #8888aa;
  --text-4: #5a5a7a;
  --text-5: #3c3c5a;

  /* ── Borders ── */
  --border:          rgba(255,255,255,0.07);
  --border-hover:    rgba(255,255,255,0.14);
  --border-violet:   rgba(60,42,189,0.45);
  --border-cyan:     rgba(255,96,0,0.35);
  --border-orange:   rgba(255,96,0,0.35);

  /* ── Gradients ── */
  --grad-primary: linear-gradient(135deg, #3C2ABD 0%, #FF6000 100%);
  --grad-hero:    linear-gradient(135deg, #3C2ABD 0%, #5B46E0 40%, #FF6000 100%);
  --grad-card:    linear-gradient(145deg, rgba(60,42,189,0.15) 0%, rgba(255,96,0,0.05) 100%);
  --grad-glow:    radial-gradient(ellipse at center, rgba(60,42,189,0.3) 0%, transparent 70%);
  --grad-text:    linear-gradient(135deg, #7B68EE 0%, #FF7D2A 100%);
  --grad-orange:  linear-gradient(135deg, #FF5000 0%, #FF8500 100%);
  --grad-purple:  linear-gradient(135deg, #3C2ABD 0%, #7B68EE 100%);

  /* ── Shadows ── */
  --shadow-sm:       0 1px 3px rgba(0,0,0,0.5);
  --shadow-md:       0 4px 16px rgba(0,0,0,0.6);
  --shadow-lg:       0 8px 32px rgba(0,0,0,0.7);
  --shadow-xl:       0 16px 64px rgba(0,0,0,0.8);
  --shadow-violet:   0 0 30px rgba(60,42,189,0.5), 0 0 60px rgba(60,42,189,0.2);
  --shadow-violet-lg:0 0 60px rgba(60,42,189,0.4), 0 0 120px rgba(60,42,189,0.2);
  --shadow-orange:   0 0 30px rgba(255,96,0,0.5), 0 0 60px rgba(255,96,0,0.2);
  --shadow-cyan:     var(--shadow-orange);

  /* ── Radius ── */
  --r-xs:   4px;  --r-sm:  8px;  --r-md: 12px; --r-lg: 16px;
  --r-xl:   24px; --r-2xl: 32px; --r-full: 9999px;

  /* ── Spacing ── */
  --space-1: 4px;  --space-2: 8px;  --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-8: 32px; --space-10: 40px;
  --space-12: 48px;--space-16: 64px;--space-20: 80px;--space-24: 96px;

  /* ── Typography ── */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* ── Transitions ── */
  --ease:        cubic-bezier(0.4, 0, 0.2, 1);
  --glow-opacity: 0.15;
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-bounce: cubic-bezier(0.68, -0.6, 0.32, 1.6);
  --ease-premium: cubic-bezier(0.33, 1, 0.68, 1);
  --t-fast: 180ms; --t-base: 350ms; --t-slow: 500ms; --t-xslow: 700ms;

  /* ── Z-index ── */
  --z-base: 1; --z-card: 10; --z-nav: 100; --z-modal: 1000; --z-toast: 2000;

  /* ── Nav ── */
  --nav-h: 68px;

  /* ── Transition shorthand ── */
  --transition: all var(--t-base) var(--ease);
}

/* ─── Light Mode ─────────────────────────────────────────────── */
[data-theme="light"] {
  --bg-0:         #f8fafc;
  --bg-1:         #f1f5f9;
  --bg-2:         #e2e8f0;
  --bg-card:      #ffffff;
  --bg-card-hover:#f8fafc;
  --bg-glass:     rgba(255,255,255,0.7);
  --bg-glass-hover: rgba(255,255,255,0.85);

  --text-1: #0f172a;
  --text-2: #334155;
  --text-3: #475569;
  --text-4: #64748b;
  --text-5: #cbd5e1;

  --border:        rgba(15,23,42,0.08);
  --border-hover:  rgba(15,23,42,0.15);
  --border-violet: rgba(60,42,189,0.2);
  --border-orange: rgba(255,80,0,0.2);
  --border-cyan:   rgba(255,80,0,0.2);

  --shadow-sm:    0 1px 3px rgba(15,23,42,0.04);
  --shadow-md:    0 4px 16px rgba(15,23,42,0.06);
  --shadow-lg:    0 8px 32px rgba(15,23,42,0.08);
  --shadow-xl:    0 16px 64px rgba(15,23,42,0.1);
  --shadow-violet:0 0 30px rgba(60,42,189,0.15);
  --shadow-orange:0 0 30px rgba(255,80,0,0.15);
  --shadow-cyan:  var(--shadow-orange);
  --grad-card:    linear-gradient(145deg, rgba(60,42,189,0.06) 0%, rgba(255,80,0,0.03) 100%);
  --glow-opacity: 0.05;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--orange) var(--bg-1);
}
html::-webkit-scrollbar { width: 5px; }
html::-webkit-scrollbar-track { background: var(--bg-1); }
html::-webkit-scrollbar-thumb { background: var(--grad-primary); border-radius: 3px; }

body {
  font-family: var(--font-sans);
  background-color: var(--bg-0);
  color: var(--text-1);
  line-height: 1.6;
  min-height: 100vh;
  transition: background-color var(--t-slow) var(--ease), color var(--t-base) var(--ease);
  overflow-x: hidden;
  position: relative;
}

/* ─── Grid Background ─────────────────────────────────────────── */
.grid-bg {
  position: absolute; inset: 0; z-index: 0;
  background-image: 
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center top;
  mask-image: radial-gradient(ellipse at center, black, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black, transparent 70%);
  opacity: 0.25;
  pointer-events: none;
}
[data-theme="light"] .grid-bg {
  opacity: 0.12;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea, select { font-family: inherit; }
ul, ol { list-style: none; }

/* ─── Typography ─────────────────────────────────────────────── */
.display-xl { font-size: clamp(2.5rem, 6vw, 5rem); font-weight: 900; line-height: 1.05; letter-spacing: -0.03em; }
.display-lg { font-size: clamp(2rem, 4.5vw, 4rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.025em; }
.display-md { font-size: clamp(1.75rem, 3.5vw, 3rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; }
.h1 { font-size: clamp(1.5rem, 3vw, 2.5rem); font-weight: 700; line-height: 1.2; }
.h2 { font-size: clamp(1.25rem, 2.5vw, 2rem); font-weight: 700; line-height: 1.25; }
.h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); font-weight: 600; line-height: 1.3; }
.body-lg { font-size: 1.125rem; line-height: 1.7; }
.body-md { font-size: 1rem; line-height: 1.65; }
.body-sm { font-size: 0.875rem; line-height: 1.6; }
.caption { font-size: 0.75rem; line-height: 1.5; }
.mono { font-family: var(--font-mono); }

/* ─── Gradient Text ──────────────────────────────────────────── */
.grad-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.grad-text-violet, .grad-text-purple {
  background: var(--grad-purple);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.grad-text-orange {
  background: var(--grad-orange);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

/* ─── Layout ─────────────────────────────────────────────────── */
.container    { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 var(--space-6); }
.container-sm { max-width: 768px; margin: 0 auto; padding: 0 var(--space-6); }
.section    { padding: var(--space-24) 0; }
.section-sm { padding: var(--space-16) 0; }
.section-header { text-align: center; margin-bottom: var(--space-16); }
.section-label {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--orange-light); background: var(--orange-subtle);
  border: 1px solid var(--border-orange);
  padding: var(--space-1) var(--space-3); border-radius: var(--r-full);
  margin-bottom: var(--space-4);
  animation: labelPop 0.5s var(--ease-spring) both;
}
.section-title { margin-bottom: var(--space-4); }
.section-desc  { color: var(--text-3); max-width: 560px; margin: 0 auto; }

/* ─── Navigation ─────────────────────────────────────────────── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: var(--z-nav);
  height: var(--nav-h);
  display: flex; align-items: center;
  background: rgba(7,7,15,0.72);
  backdrop-filter: blur(24px) saturate(200%);
  -webkit-backdrop-filter: blur(24px) saturate(200%);
  border-bottom: 1px solid var(--border);
  transition: all var(--t-base) var(--ease);
}
[data-theme="light"] .navbar { background: rgba(245,244,255,0.82); }
.navbar.scrolled {
  background: rgba(7,7,15,0.96);
  border-bottom-color: rgba(60,42,189,0.25);
  box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}
[data-theme="light"] .navbar.scrolled { background: rgba(245,244,255,0.99); box-shadow: 0 4px 24px rgba(60,42,189,0.1); }

.navbar-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.navbar-logo  { display: flex; align-items: center; gap: var(--space-3); transition: transform var(--t-base) var(--ease-spring); }
.navbar-logo:hover { transform: scale(1.05); }
.navbar-logo img.nav-brand-img { 
  height: 44px; width: auto; 
  transition: all var(--t-base) var(--ease);
}
/* Dark theme: orange logo on dark bg — transparent background floating naturally */
[data-theme="dark"] .navbar-logo img.nav-brand-img {
  background: transparent;
  padding: 0;
  border-radius: 0;
}
/* Light theme: purple logo — transparent background floating naturally */
[data-theme="light"] .navbar-logo img.nav-brand-img {
  mix-blend-mode: normal;
  padding: 0;
}

.navbar-logo-text {
  font-size: 1.35rem; font-weight: 900; letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff 0%, var(--orange) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
[data-theme="light"] .navbar-logo-text {
  background: var(--grad-primary);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

.navbar-links { display: flex; align-items: center; gap: 2px; }
.nav-link {
  padding: 8px 14px;
  font-size: 0.875rem; font-weight: 500; color: var(--text-3);
  border-radius: var(--r-md);
  transition: all var(--t-fast) var(--ease-spring);
  position: relative;
}
.nav-link:hover { color: var(--text-1); background: var(--bg-glass); transform: translateY(-1px); }
.nav-link.active {
  color: var(--text-1);
  background: var(--purple-subtle);
}
.nav-link.active::after {
  content: ''; position: absolute; bottom: 3px; left: 50%; transform: translateX(-50%);
  width: 20px; height: 2.5px;
  background: var(--grad-primary);
  border-radius: var(--r-full);
}

.navbar-actions { display: flex; align-items: center; gap: var(--space-3); }
.nav-theme-btn {
  width: 36px; height: 36px; border-radius: var(--r-full);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-3); background: var(--bg-glass); border: 1px solid var(--border);
  font-size: 1rem;
  transition: all var(--t-fast) var(--ease-spring);
}
.nav-theme-btn:hover { color: var(--text-1); border-color: var(--border-orange); background: var(--orange-subtle); transform: scale(1.1) rotate(15deg); }

/* Mobile Nav Toggle */
.nav-hamburger { display: none; flex-direction: column; gap: 5px; width: 36px; height: 36px; align-items: center; justify-content: center; }
.nav-hamburger span { display: block; width: 22px; height: 2px; background: var(--text-2); border-radius: 2px; transition: all var(--t-base) var(--ease-spring); }
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu */
.mobile-menu {
  position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
  background: var(--bg-0); z-index: calc(var(--z-nav) - 1);
  display: flex; flex-direction: column;
  padding: var(--space-8) var(--space-6);
  transform: translateX(-100%); transition: transform var(--t-slow) var(--ease-spring);
  overflow-y: auto;
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu .nav-link { display: block; font-size: 1.125rem; padding: var(--space-4) var(--space-3); border-radius: var(--r-lg); }

/* ─── Hero Section ────────────────────────────────────────────── */
.hero {
  position: relative; overflow: hidden;
  padding-top: var(--nav-h);
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: var(--bg-0); overflow: hidden;
}
.hero-bg::before {
  content: ''; position: absolute; top: -20%; left: -10%;
  width: 70%; height: 70%;
  background: radial-gradient(ellipse, rgba(60,42,189,0.30) 0%, transparent 70%);
  animation: heroBlobFloat 8s ease-in-out infinite;
}
.hero-bg::after {
  content: ''; position: absolute; bottom: -20%; right: -10%;
  width: 60%; height: 60%;
  background: radial-gradient(ellipse, rgba(255,96,0,0.22) 0%, transparent 70%);
  animation: heroBlobFloat 10s ease-in-out infinite reverse;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(60,42,189,0.06) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(60,42,189,0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
  opacity: 0.5;
}
.hero-inner {
  position: relative; z-index: 1;
  width: 100%; padding: var(--space-8) 0 var(--space-16) 0;
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-16); align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: var(--space-2);
  background: var(--orange-subtle); border: 1px solid var(--border-orange);
  padding: 6px var(--space-4); border-radius: var(--r-full);
  font-size: 0.8rem; font-weight: 700; color: var(--orange-light);
  margin-bottom: var(--space-6);
  animation: fadeSlideUp 0.6s var(--ease) both;
}
.hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--orange); animation: pulseDot 2s infinite; }
.hero-title {
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  font-weight: 900; line-height: 1.02; letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
  animation: fadeSlideUp 0.6s 0.1s var(--ease) both;
}
.hero-tagline {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-3); line-height: 1.7;
  margin-bottom: var(--space-8);
  animation: fadeSlideUp 0.6s 0.2s var(--ease) both;
}
.hero-punchline {
  font-size: 1.1rem; font-weight: 800;
  background: var(--grad-primary);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-ctas {
  display: flex; align-items: center; gap: var(--space-4); flex-wrap: wrap;
  animation: fadeSlideUp 0.6s 0.3s var(--ease) both;
}
.hero-stats {
  display: flex; gap: var(--space-8); margin-top: var(--space-10);
  animation: fadeSlideUp 0.6s 0.4s var(--ease) both;
}
.hero-stat-num  { font-size: 1.75rem; font-weight: 900; background: var(--grad-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-stat-label{ font-size: 0.8rem; color: var(--text-4); margin-top: 2px; }
.hero-visual    { position: relative; animation: fadeSlideLeft 0.8s 0.2s var(--ease) both; min-height: 560px; }
.hero-float-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r-xl); padding: var(--space-4) var(--space-5);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255,255,255,0.04);
  position: absolute;
  transition: all var(--t-base) var(--ease-spring);
}
.hero-float-card:hover { transform: translateY(-6px) scale(1.03); box-shadow: var(--shadow-xl), var(--shadow-violet); z-index: 10; }

.hero-cyber-ring {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 380px; height: 380px;
  border: 2px dashed rgba(60, 42, 189, 0.25);
  border-radius: 50%;
  z-index: 0;
  pointer-events: none;
  animation: rotateCyberRing 25s linear infinite;
}
.hero-cyber-ring::before {
  content: ''; position: absolute; inset: 20px;
  border: 1px dashed rgba(255, 96, 0, 0.2);
  border-radius: 50%;
  animation: rotateCyberRing 15s linear infinite reverse;
}
@keyframes rotateCyberRing {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ─── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: 48px; padding: 0 var(--space-6);
  font-size: 0.95rem; font-weight: 700;
  border-radius: var(--r-full);
  transition: all var(--t-base) var(--ease-spring);
  white-space: nowrap; cursor: pointer;
  position: relative; overflow: hidden; letter-spacing: 0.01em;
  text-decoration: none !important;
}
.btn::after {
  content: ''; position: absolute; top: 0; left: -100%; width: 50%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  transform: skewX(-25deg);
  pointer-events: none;
  transition: none;
}
.btn:hover::after {
  left: 150%;
  transition: left 0.8s var(--ease-premium);
}
.btn::before {
  content: ''; position: absolute; inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--t-fast) var(--ease);
  pointer-events: none;
}
.btn:hover::before { background: rgba(255,255,255,0.1); }
.btn:active { transform: scale(0.95) !important; }

/* PRIMARY — Orange gradient (brand) */
.btn-primary {
  background: var(--grad-orange);
  color: #fff !important;
  box-shadow: 0 2px 12px var(--orange-glow);
  border: none;
  transition: all var(--t-base) var(--ease-premium);
}
.btn-primary:hover {
  box-shadow: 0 8px 28px var(--orange-glow), 0 0 40px rgba(255,96,0,0.2);
  transform: translateY(-3px);
}

/* SECONDARY — Purple ghost */
.btn-secondary {
  background: rgba(124, 58, 237, 0.04);
  color: var(--text-1) !important;
  border: 1.5px solid var(--border);
  backdrop-filter: blur(12px);
  transition: all var(--t-base) var(--ease-premium);
}
.btn-secondary:hover {
  border-color: var(--border-violet);
  background: rgba(124, 58, 237, 0.08);
  color: var(--violet-light) !important;
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.12);
  transform: translateY(-2px);
}

/* PURPLE solid */
.btn-purple {
  background: var(--grad-purple);
  color: #fff !important;
  box-shadow: 0 4px 20px var(--purple-glow);
  border: none;
}
.btn-purple:hover {
  box-shadow: 0 8px 36px var(--purple-glow);
  transform: translateY(-3px) scale(1.02);
}

.btn-ghost { color: var(--text-2) !important; padding: 10px var(--space-4); border-radius: var(--r-md); }
.btn-ghost:hover { background: var(--bg-glass); color: var(--text-1) !important; }

/* CYAN kept as orange alias */
.btn-cyan {
  background: var(--grad-orange);
  color: #fff !important; font-weight: 700;
  box-shadow: 0 4px 20px var(--orange-glow);
}
.btn-cyan:hover { box-shadow: 0 8px 36px var(--orange-glow); transform: translateY(-3px); }

.btn-sm { padding: 7px var(--space-4); font-size: 0.8rem; }
.btn-lg { padding: 14px var(--space-8); font-size: 1rem; }
.btn-icon { width: 40px; height: 40px; padding: 0; border-radius: var(--r-full); }

/* ─── Reaction Buttons ────────────────────────────────────────── */
.reaction-btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: 6px 14px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r-full); font-size: 0.95rem; color: var(--text-2);
  transition: all var(--t-fast) var(--ease-spring);
  cursor: pointer; user-select: none;
}
.reaction-btn:hover { background: var(--bg-card-hover); border-color: var(--border-orange); transform: translateY(-2px) scale(1.05); color: var(--text-1); }
.reaction-btn:active { transform: scale(0.95); }
.reaction-btn.reacted { background: var(--orange-subtle); border-color: var(--border-orange); color: var(--orange-light); box-shadow: 0 0 16px var(--orange-glow); }
.reaction-btn span { font-size: 0.8rem; font-weight: 700; color: var(--text-3); transition: color var(--t-fast) var(--ease); }
.reaction-btn.reacted span { color: var(--orange-light); }

/* ─── Cards ───────────────────────────────────────────────────── */
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r-xl); padding: var(--space-6);
  transition: all var(--t-base) var(--ease);
  position: relative; overflow: hidden;
}
.card::before {
  content: ''; position: absolute; inset: 0;
  background: var(--grad-card); opacity: 0;
  transition: opacity var(--t-base) var(--ease);
  pointer-events: none;
}
.card:hover { border-color: var(--border-violet); transform: translateY(-4px); box-shadow: var(--shadow-md), 0 0 24px rgba(60,42,189,0.08); }
.card:hover::before { opacity: 1; }
.card-glass {
  background: var(--bg-glass);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--border); border-radius: var(--r-xl); padding: var(--space-6);
  transition: all var(--t-base) var(--ease-premium);
}
.card-glass:hover { background: var(--bg-glass-hover); border-color: var(--border-hover); transform: translateY(-2px); }

/* ─── Stats Strip ────────────────────────────────────────────── */
.stats-strip { padding: var(--space-16) 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--bg-1); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-8); }
.stat-item { text-align: center; }
.stat-number {
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 900; line-height: 1;
  background: var(--grad-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  margin-bottom: var(--space-2);
}
.stat-label { font-size: 0.875rem; color: var(--text-3); font-weight: 500; }

/* ─── Feature Cards ──────────────────────────────────────────── */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.feature-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-xl);
  padding: var(--space-8) var(--space-6);
  transition: all var(--t-base) var(--ease-spring);
  position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--grad-primary); opacity: 0;
  transition: opacity var(--t-base) var(--ease);
}
.feature-card:hover { border-color: var(--border-orange); transform: translateY(-6px) scale(1.02); box-shadow: var(--shadow-md), 0 0 25px rgba(255,96,0,0.1); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 56px; height: 56px; border-radius: var(--r-lg);
  background: var(--orange-subtle); border: 1px solid var(--border-orange);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: var(--space-5);
  transition: all var(--t-base) var(--ease-spring);
}
.feature-card:hover .feature-icon { background: var(--grad-primary); transform: scale(1.15) rotate(-10deg); box-shadow: 0 4px 16px var(--orange-glow); }
.feature-title { font-size: 1.1rem; font-weight: 700; margin-bottom: var(--space-2); }
.feature-desc  { font-size: 0.875rem; color: var(--text-2); line-height: 1.7; }

/* ─── Subject Cards ──────────────────────────────────────────── */
.subjects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.subject-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-xl);
  padding: var(--space-6);
  display: flex; align-items: center; gap: var(--space-4);
  transition: all var(--t-base) var(--ease-spring);
  cursor: pointer; text-decoration: none; color: inherit;
}
.subject-card:hover { 
  border-color: var(--border-violet); 
  transform: translateY(-5px) scale(1.02); 
  box-shadow: 0 12px 30px rgba(124, 58, 237, 0.16); 
}
.subject-icon {
  width: 52px; height: 52px; flex-shrink: 0; border-radius: var(--r-lg);
  display: flex; align-items: center; justify-content: center; font-size: 1.4rem;
  transition: all var(--t-base) var(--ease-spring);
}
.subject-card:hover .subject-icon { transform: scale(1.2) rotate(-8deg); }
.subject-name  { font-weight: 700; margin-bottom: 2px; }
.subject-count { font-size: 0.8rem; color: var(--text-4); }
.subject-arrow { margin-left: auto; color: var(--text-5); font-size: 1.1rem; transition: all var(--t-base) var(--ease-spring); }
.subject-card:hover .subject-arrow { transform: translateX(5px) scale(1.2); color: var(--purple-light); }

/* ─── Resource Cards ─────────────────────────────────────────── */
.resources-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.resource-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-xl);
  overflow: hidden; transition: all var(--t-base) var(--ease-spring);
}
.resource-card:hover { 
  border-color: var(--border-orange); 
  transform: translateY(-6px) scale(1.02); 
  box-shadow: 0 12px 30px rgba(255, 96, 0, 0.15); 
}
.resource-thumb { width: 100%; height: 140px; object-fit: cover; }
.resource-thumb-placeholder {
  width: 100%; height: 140px;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem; background: var(--grad-card);
}
.resource-body { padding: var(--space-5); }
.resource-category { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--orange); margin-bottom: var(--space-2); }
.resource-title { font-size: 0.95rem; font-weight: 600; margin-bottom: var(--space-2); line-height: 1.4; }
.resource-desc { font-size: 0.8rem; color: var(--text-3); margin-bottom: var(--space-4); }
.resource-footer { display: flex; align-items: center; justify-content: space-between; }
.resource-downloads { font-size: 0.75rem; color: var(--text-4); display: flex; align-items: center; gap: 4px; }

/* ─── Course Cards ────────────────────────────────────────────── */
.courses-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.course-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-xl);
  overflow: hidden; transition: all var(--t-base) var(--ease-spring);
  display: flex; flex-direction: column;
}
.course-card:hover { 
  border-color: var(--border-violet); 
  transform: translateY(-6px) scale(1.02); 
  box-shadow: 0 12px 32px rgba(124, 58, 237, 0.16); 
}
.course-thumb { width: 100%; height: 180px; object-fit: cover; }
.course-thumb-placeholder {
  width: 100%; height: 180px;
  display: flex; align-items: center; justify-content: center; font-size: 3rem;
  background: var(--grad-hero);
}
.course-body  { padding: var(--space-5); flex: 1; display: flex; flex-direction: column; }
.course-badge { display: flex; align-items: center; gap: var(--space-2); margin-bottom: var(--space-3); }
.course-title { font-size: 1rem; font-weight: 700; margin-bottom: var(--space-3); line-height: 1.4; }
.course-desc  { font-size: 0.825rem; color: var(--text-3); margin-bottom: var(--space-4); flex: 1; }
.course-meta  { display: flex; align-items: center; gap: var(--space-4); font-size: 0.8rem; color: var(--text-4); margin-bottom: var(--space-4); }
.course-meta-item { display: flex; align-items: center; gap: 4px; }
.course-footer { display: flex; gap: var(--space-3); }
.course-footer .btn { flex: 1; }

/* ─── Blog Cards ──────────────────────────────────────────────── */
.blogs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.blog-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-xl);
  overflow: hidden; transition: all var(--t-base) var(--ease-spring);
  display: flex; flex-direction: column;
}
.blog-card:hover { 
  border-color: var(--border-orange); 
  transform: translateY(-6px) scale(1.02); 
  box-shadow: 0 12px 30px rgba(255, 96, 0, 0.15); 
}
.blog-thumb { width: 100%; height: 200px; object-fit: cover; transition: transform var(--t-slow) var(--ease-spring); }
.blog-card:hover .blog-thumb { transform: scale(1.06); }
.blog-thumb-wrap { overflow: hidden; }
.blog-body  { padding: var(--space-5); flex: 1; display: flex; flex-direction: column; }
.blog-category {
  display: inline-block; font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; padding: 2px 10px; border-radius: var(--r-full);
  color: white; margin-bottom: var(--space-3);
}
.blog-title   { font-size: 1rem; font-weight: 700; margin-bottom: var(--space-2); line-height: 1.4; flex: 1; }
.blog-excerpt { font-size: 0.825rem; color: var(--text-3); margin-bottom: var(--space-4); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.blog-footer  { display: flex; align-items: center; justify-content: space-between; font-size: 0.75rem; color: var(--text-4); }
.blog-author  { display: flex; align-items: center; gap: var(--space-2); }
.blog-avatar  { width: 24px; height: 24px; border-radius: 50%; object-fit: cover; }
.blog-meta    { display: flex; align-items: center; gap: var(--space-3); }

/* ─── Testimonials ────────────────────────────────────────────── */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.testimonial-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-xl);
  padding: var(--space-6);
  transition: all var(--t-base) var(--ease-premium);
  position: relative;
}
.testimonial-card:hover { 
  border-color: var(--border-violet); 
  transform: translateY(-3px); 
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.1); 
}
.testimonial-quote   { font-size: 3rem; line-height: 0.5; color: var(--orange); margin-bottom: var(--space-4); opacity: 0.6; }
.testimonial-content { font-size: 0.9rem; color: var(--text-2); line-height: 1.7; margin-bottom: var(--space-5); }
.testimonial-author  { display: flex; align-items: center; gap: var(--space-3); }
.testimonial-avatar  { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; border: 2px solid var(--border-orange); }
.testimonial-name    { font-weight: 700; font-size: 0.9rem; }
.testimonial-role    { font-size: 0.775rem; color: var(--text-4); }
.testimonial-stars   { color: var(--orange); font-size: 0.85rem; margin-top: 2px; }

/* ─── Badges ──────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: var(--r-full);
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
}
.badge-violet  { background: var(--purple-subtle); color: var(--purple-light); border: 1px solid var(--border-violet); }
.badge-cyan    { background: var(--orange-subtle); color: var(--orange-light); border: 1px solid var(--border-orange); }
.badge-orange  { background: var(--orange-subtle); color: var(--orange-light); border: 1px solid var(--border-orange); }
.badge-purple  { background: var(--purple-subtle); color: var(--purple-light); border: 1px solid var(--border-violet); }
.badge-success { background: rgba(34,197,94,0.12); color: #4ade80; border: 1px solid rgba(34,197,94,0.3); }
.badge-warning { background: rgba(245,158,11,0.12); color: #fbbf24; border: 1px solid rgba(245,158,11,0.3); }
.badge-danger  { background: rgba(239,68,68,0.12); color: #f87171; border: 1px solid rgba(239,68,68,0.3); }
.badge-info    { background: var(--purple-subtle); color: var(--purple-light); border: 1px solid var(--border-violet); }

/* ─── FAQ ─────────────────────────────────────────────────────── */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--space-3); }
.faq-item {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-lg);
  overflow: hidden; transition: all var(--t-base) var(--ease);
}
.faq-item.open { border-color: var(--border-orange); box-shadow: 0 0 20px rgba(255,96,0,0.08); }
.faq-question {
  width: 100%; padding: var(--space-5) var(--space-6);
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  font-size: 0.95rem; font-weight: 600; color: var(--text-1);
  text-align: left; cursor: pointer;
  transition: color var(--t-fast) var(--ease);
}
.faq-question:hover { color: var(--orange-light); }
.faq-icon { width: 22px; height: 22px; border-radius: 50%; background: var(--bg-glass); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-size: 0.8rem; flex-shrink: 0; transition: all var(--t-base) var(--ease-spring); }
.faq-item.open .faq-icon { background: var(--orange-subtle); border-color: var(--border-orange); transform: rotate(180deg); color: var(--orange-light); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height var(--t-slow) var(--ease); }
.faq-answer-inner { padding: 0 var(--space-6) var(--space-5); color: var(--text-3); font-size: 0.875rem; line-height: 1.7; }
.faq-item.open .faq-answer { max-height: 500px; }

/* ─── Download CTA Section ────────────────────────────────────── */
.download-section { padding: var(--space-20) 0; background: var(--bg-1); position: relative; overflow: hidden; }
.download-section::before {
  content: ''; position: absolute; top: -50%; left: -20%;
  width: 80%; height: 200%;
  background: radial-gradient(ellipse, rgba(60,42,189,0.15) 0%, transparent 60%);
  pointer-events: none;
}
.download-section::after {
  content: ''; position: absolute; bottom: -50%; right: -20%;
  width: 80%; height: 200%;
  background: radial-gradient(ellipse, rgba(255,96,0,0.10) 0%, transparent 60%);
  pointer-events: none;
}
.download-inner { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-16); align-items: center; }
.download-app-badges { display: flex; gap: var(--space-4); flex-wrap: wrap; }
.app-badge {
  display: flex; align-items: center; gap: var(--space-3);
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: var(--space-3) var(--space-5);
  transition: all var(--t-base) var(--ease-spring); color: var(--text-1);
}
.app-badge:hover { border-color: var(--border-orange); transform: translateY(-3px) scale(1.02); box-shadow: var(--shadow-md), 0 0 20px rgba(255,96,0,0.1); }
.app-badge-icon { font-size: 1.75rem; }
.app-badge-text small { display: block; font-size: 0.65rem; color: var(--text-4); text-transform: uppercase; letter-spacing: 0.08em; }
.app-badge-text strong { font-size: 1rem; font-weight: 700; }

/* ─── Footer ──────────────────────────────────────────────────── */
.footer { background: var(--bg-1); border-top: 1px solid var(--border); padding: var(--space-20) 0 var(--space-8); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-12); margin-bottom: var(--space-12); }
.footer-brand-logo { margin-bottom: var(--space-4); }
.footer-brand-logo img { height: 32px; }
.footer-brand-logo .logo-text {
  font-size: 1.25rem; font-weight: 900;
  background: var(--grad-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.footer-desc { font-size: 0.875rem; color: var(--text-3); line-height: 1.7; margin-bottom: var(--space-6); max-width: 280px; }
.footer-social { display: flex; gap: var(--space-3); }
.footer-social-link {
  width: 38px; height: 38px; border-radius: var(--r-md);
  background: var(--bg-glass); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--t-base) var(--ease-spring); color: var(--text-3);
}
.footer-social-link:hover { background: var(--orange-subtle); border-color: var(--border-orange); color: var(--orange-light); transform: translateY(-3px) scale(1.1); }
.footer-col-title  { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-2); margin-bottom: var(--space-4); }
.footer-links      { display: flex; flex-direction: column; gap: var(--space-2); }
.footer-link       { font-size: 0.875rem; color: var(--text-3); transition: all var(--t-fast) var(--ease); }
.footer-link:hover { color: var(--orange-light); transform: translateX(4px); display: inline-block; }
.footer-bottom     { border-top: 1px solid var(--border); padding-top: var(--space-8); display: flex; align-items: center; justify-content: space-between; }
.footer-copy       { font-size: 0.8rem; color: var(--text-4); }
.footer-tagline    { font-size: 0.8rem; font-weight: 700; background: var(--grad-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ─── Search ──────────────────────────────────────────────────── */
.search-bar {
  display: flex; align-items: center; gap: var(--space-3);
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r-full); padding: var(--space-3) var(--space-5);
  transition: all var(--t-fast) var(--ease);
}
.search-bar:focus-within { border-color: var(--border-violet); box-shadow: 0 0 0 3px var(--purple-subtle); }
.search-bar input { flex: 1; background: none; border: none; outline: none; color: var(--text-1); font-size: 0.9rem; }
.search-bar input::placeholder { color: var(--text-4); }
.search-bar-icon { color: var(--text-4); }

/* ─── Forms ───────────────────────────────────────────────────── */
.form-group  { margin-bottom: var(--space-5); }
.form-label  { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-2); margin-bottom: var(--space-2); }
.form-input, .form-control {
  width: 100%; min-height: 48px; padding: 0 var(--space-4);
  background: var(--bg-card); border: 1.5px solid var(--border); border-radius: var(--r-md);
  color: var(--text-1); font-size: 0.95rem; font-family: var(--font-sans);
  transition: all var(--t-fast) var(--ease); outline: none;
}
.form-input:focus, .form-control:focus { border-color: var(--border-violet); box-shadow: 0 0 0 3px var(--purple-subtle); }
.form-input::placeholder, .form-control::placeholder { color: var(--text-4); }
.form-textarea { resize: vertical; min-height: 120px; }
.form-select { appearance: none; cursor: pointer; }
.form-error  { font-size: 0.8rem; color: var(--red); margin-top: var(--space-1); }
.form-hint   { font-size: 0.8rem; color: var(--text-4); margin-top: var(--space-1); }

/* ─── Alerts / Flash Messages ─────────────────────────────────── */
.alert { padding: var(--space-4) var(--space-5); border-radius: var(--r-md); font-size: 0.875rem; margin-bottom: var(--space-4); display: flex; align-items: center; gap: var(--space-3); }
.alert-success { background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.3); color: #4ade80; }
.alert-error   { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: #f87171; }
.alert-warning { background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.3); color: #fbbf24; }
.alert-info    { background: var(--purple-subtle); border: 1px solid var(--border-violet); color: var(--purple-light); }

/* ─── Pagination ──────────────────────────────────────────────── */
.pagination { display: flex; justify-content: center; margin-top: var(--space-12); }
.pagination-list { display: flex; align-items: center; gap: var(--space-1); }
.pagination-btn {
  display: flex; align-items: center; justify-content: center;
  min-width: 40px; height: 40px; padding: 0 var(--space-3);
  border-radius: var(--r-md); font-size: 0.875rem; font-weight: 500;
  color: var(--text-3); background: var(--bg-card); border: 1px solid var(--border);
  transition: all var(--t-fast) var(--ease-spring);
}
.pagination-btn:hover { border-color: var(--border-violet); color: var(--purple-light); background: var(--purple-subtle); transform: scale(1.05); }
.pagination-btn.current { background: var(--grad-primary); color: white; border-color: transparent; box-shadow: var(--shadow-violet); }
.pagination-dots { color: var(--text-4); padding: 0 var(--space-2); }

/* ─── Breadcrumb ──────────────────────────────────────────────── */
.breadcrumb { margin-bottom: var(--space-6); }
.breadcrumb ol { display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; }
.breadcrumb li { display: flex; align-items: center; gap: var(--space-2); font-size: 0.8rem; color: var(--text-4); }
.breadcrumb li::after { content: '/'; opacity: 0.4; }
.breadcrumb li:last-child::after { display: none; }
.breadcrumb a { color: var(--text-3); transition: color var(--t-fast); }
.breadcrumb a:hover { color: var(--orange-light); }

/* ─── Chapter Reader ──────────────────────────────────────────── */
.chapter-layout  { display: grid; grid-template-columns: 280px 1fr; gap: 0; min-height: calc(100vh - var(--nav-h)); }
.chapter-sidebar {
  position: sticky; top: var(--nav-h); height: calc(100vh - var(--nav-h));
  background: var(--bg-1); border-right: 1px solid var(--border);
  overflow-y: auto; padding: var(--space-6);
}
.chapter-sidebar::-webkit-scrollbar { width: 4px; }
.chapter-sidebar::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 2px; }
.sidebar-subject-title { font-size: 1rem; font-weight: 800; margin-bottom: var(--space-5); padding-bottom: var(--space-4); border-bottom: 1px solid var(--border); }
.sidebar-chapter {
  display: flex; align-items: center; gap: var(--space-3); padding: var(--space-2) var(--space-3);
  border-radius: var(--r-md); font-size: 0.825rem; color: var(--text-3);
  transition: all var(--t-fast) var(--ease); cursor: pointer; margin-bottom: 2px;
}
.sidebar-chapter:hover { background: var(--bg-glass); color: var(--text-1); }
.sidebar-chapter.active { background: var(--purple-subtle); border: 1px solid var(--border-violet); color: var(--purple-light); font-weight: 600; }
.sidebar-chapter-num { width: 20px; height: 20px; border-radius: 50%; background: var(--bg-card); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-size: 0.65rem; font-weight: 700; flex-shrink: 0; }
.chapter-content { padding: var(--space-10) var(--space-12); max-width: 860px; }
.chapter-header  { margin-bottom: var(--space-8); padding-bottom: var(--space-8); border-bottom: 1px solid var(--border); }
.chapter-title   { font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 800; letter-spacing: -0.02em; margin-bottom: var(--space-4); }
.chapter-meta    { display: flex; align-items: center; gap: var(--space-5); font-size: 0.8rem; color: var(--text-4); }

/* Rich Content */
.rich-content { color: var(--text-2); line-height: 1.8; font-size: 1rem; }
.rich-content h1,.rich-content h2,.rich-content h3,.rich-content h4 { color: var(--text-1); font-weight: 700; margin: var(--space-8) 0 var(--space-4); line-height: 1.25; }
.rich-content h2 { font-size: 1.5rem; border-bottom: 1px solid var(--border); padding-bottom: var(--space-3); }
.rich-content h3 { font-size: 1.2rem; }
.rich-content p  { margin-bottom: var(--space-4); }
.rich-content ul, .rich-content ol { margin: var(--space-4) 0 var(--space-4) var(--space-6); }
.rich-content li { margin-bottom: var(--space-2); }
.rich-content ul li::marker { color: var(--orange); }
.rich-content a  { color: var(--orange-light); text-decoration: underline; text-underline-offset: 3px; }
.rich-content a.btn { text-decoration: none !important; }
.rich-content a:hover { color: var(--purple-light); }
.rich-content strong { color: var(--text-1); font-weight: 700; }
.rich-content em { color: var(--text-2); }
.rich-content blockquote {
  border-left: 3px solid var(--orange); background: var(--orange-subtle);
  padding: var(--space-4) var(--space-6); border-radius: 0 var(--r-md) var(--r-md) 0;
  margin: var(--space-6) 0; color: var(--text-2);
}
.rich-content pre {
  background: #0a0a18; border: 1px solid var(--border); border-radius: var(--r-md);
  padding: var(--space-5); overflow-x: auto; margin: var(--space-6) 0;
  font-family: var(--font-mono); font-size: 0.85rem; line-height: 1.7;
}
[data-theme="light"] .rich-content pre { background: #1a1a2e; }
.rich-content code {
  font-family: var(--font-mono); font-size: 0.85em;
  background: var(--bg-card); border: 1px solid var(--border);
  padding: 1px 6px; border-radius: var(--r-xs); color: var(--orange-light);
}
.rich-content pre code { background: none; border: none; padding: 0; color: inherit; }
.rich-content table { width: 100%; border-collapse: collapse; margin: var(--space-6) 0; }
.rich-content th, .rich-content td { border: 1px solid var(--border); padding: var(--space-3) var(--space-4); text-align: left; }
.rich-content th { background: var(--bg-card); font-weight: 700; color: var(--text-1); }
.rich-content td { color: var(--text-2); }
.rich-content img { border-radius: var(--r-lg); max-width: 100%; margin: var(--space-6) 0; }

/* Chapter Navigation */
.chapter-nav { display: flex; gap: var(--space-4); margin-top: var(--space-12); padding-top: var(--space-8); border-top: 1px solid var(--border); }
.chapter-nav-btn {
  flex: 1; padding: var(--space-4) var(--space-5);
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-lg);
  transition: all var(--t-base) var(--ease); cursor: pointer;
}
.chapter-nav-btn:hover { border-color: var(--border-violet); background: var(--purple-subtle); }
.chapter-nav-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-4); margin-bottom: 4px; }
.chapter-nav-title { font-size: 0.9rem; font-weight: 600; color: var(--text-1); }

/* ─── Roadmap ─────────────────────────────────────────────────── */
.roadmap::before {
  content: ''; position: absolute; left: 50%; transform: translateX(-50%);
  top: 0; bottom: 0; width: 4px;
  background: linear-gradient(180deg, var(--purple) 0%, var(--orange) 100%);
  opacity: 0.8;
  border-radius: var(--r-full);
  box-shadow: 0 0 15px rgba(60, 42, 189, 0.3);
}
.roadmap { position: relative; padding: var(--space-8) 0; }
.roadmap-step {
  display: flex; align-items: center; gap: var(--space-8);
  margin-bottom: var(--space-12); position: relative;
  transition: all var(--t-base) var(--ease-premium);
}
.roadmap-step:nth-child(even) { flex-direction: row-reverse; }
.roadmap-step-card {
  flex: 1; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r-xl); padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: all var(--t-base) var(--ease-premium);
  position: relative;
}
.roadmap-step-card::after {
  content: ''; position: absolute; inset: 0; border-radius: var(--r-xl);
  border: 1px solid transparent; pointer-events: none;
  transition: all var(--t-base) var(--ease-premium);
}
.roadmap-step:hover .roadmap-step-card {
  transform: translateY(-4px);
  border-color: var(--border-violet);
  box-shadow: 0 12px 32px rgba(60, 42, 189, 0.15);
}
.roadmap-step:hover .roadmap-step-card::after {
  border-color: rgba(60, 42, 189, 0.3);
}
.roadmap-step:nth-child(even):hover .roadmap-step-card {
  border-color: var(--border-orange);
  box-shadow: 0 12px 32px rgba(255, 96, 0, 0.12);
}
.roadmap-step:nth-child(even):hover .roadmap-step-card::after {
  border-color: rgba(255, 96, 0, 0.25);
}
.roadmap-step-node {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--grad-purple);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1rem; color: white; flex-shrink: 0;
  box-shadow: var(--shadow-violet); z-index: 2; position: relative;
  transition: all var(--t-base) var(--ease-premium);
}
.roadmap-step:hover .roadmap-step-node {
  transform: scale(1.15) rotate(360deg);
  background: var(--grad-orange);
  box-shadow: 0 0 25px var(--orange-glow);
}
.roadmap-step-spacer { flex: 1; }

/* ─── Progress Bar ────────────────────────────────────────────── */
.progress-bar  { background: var(--bg-2); border-radius: var(--r-full); height: 6px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--grad-primary); border-radius: var(--r-full); transition: width 0.6s var(--ease); }

/* ─── Skeleton Loader ─────────────────────────────────────────── */
.skeleton { background: linear-gradient(90deg, var(--bg-card) 0%, var(--bg-card-hover) 50%, var(--bg-card) 100%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: var(--r-md); }
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }

/* ─── Loading Overlay ─────────────────────────────────────────── */
#page-loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg-0);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  transition: opacity 0.4s var(--ease);
}
.loader-logo { font-size: 2rem; font-weight: 900; background: var(--grad-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: var(--space-4); animation: loaderPulse 1s ease-in-out infinite alternate; }
.loader-bar  { width: 200px; height: 3px; background: var(--bg-2); border-radius: var(--r-full); overflow: hidden; }
.loader-bar-fill { height: 100%; background: var(--grad-primary); border-radius: var(--r-full); animation: loaderProgress 0.8s var(--ease) forwards; }
@keyframes loaderProgress { from { width: 0; } to { width: 100%; } }
@keyframes loaderPulse { from { opacity: 0.7; } to { opacity: 1; } }

/* ─── Toast Notifications ─────────────────────────────────────── */
.toast-container { position: fixed; bottom: var(--space-6); right: var(--space-6); z-index: var(--z-toast); display: flex; flex-direction: column; gap: var(--space-3); }
.toast {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: var(--space-4) var(--space-5); box-shadow: var(--shadow-xl);
  font-size: 0.875rem; min-width: 280px; max-width: 380px;
  animation: toastIn 0.4s var(--ease-spring) both;
  display: flex; align-items: center; gap: var(--space-3);
}
.toast-success { border-color: rgba(34,197,94,0.4); }
.toast-error   { border-color: rgba(239,68,68,0.4); }
@keyframes toastIn { from { transform: translateX(110%) scale(0.9); opacity: 0; } to { transform: translateX(0) scale(1); opacity: 1; } }

/* ─── 404 Page ────────────────────────────────────────────────── */
.error-page    { min-height: 100vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: var(--space-8); }
.error-code    { font-size: clamp(6rem, 20vw, 12rem); font-weight: 900; line-height: 1; background: var(--grad-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.error-message { font-size: 1.5rem; font-weight: 700; margin: var(--space-4) 0 var(--space-2); }
.error-desc    { color: var(--text-3); margin-bottom: var(--space-8); }

/* ─── Filters ─────────────────────────────────────────────────── */
.filter-bar { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; margin-bottom: var(--space-8); }
.filter-btn {
  padding: 7px var(--space-4); border-radius: var(--r-full);
  font-size: 0.8rem; font-weight: 600; color: var(--text-3);
  background: var(--bg-card); border: 1px solid var(--border);
  transition: all var(--t-fast) var(--ease-spring); cursor: pointer;
}
.filter-btn:hover, .filter-btn.active { background: var(--orange-subtle); border-color: var(--border-orange); color: var(--orange-light); transform: scale(1.05); }

/* ─── Section Decorations ─────────────────────────────────────── */
.glow-orb {
  position: absolute; border-radius: 50%; filter: blur(80px); pointer-events: none; z-index: 0;
  background: radial-gradient(circle, var(--purple) 0%, transparent 70%);
  opacity: var(--glow-opacity);
}
.glow-orb-orange { background: radial-gradient(circle, var(--orange) 0%, transparent 70%); }

/* ─── Floating Animation Backgrounds ─────────────────────────── */
.floating-shapes { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.float-shape {
  position: absolute; border-radius: var(--r-xl);
  background: linear-gradient(135deg, rgba(60,42,189,0.08) 0%, rgba(255,96,0,0.04) 100%);
  border: 1px solid rgba(60,42,189,0.08);
  animation: floatShapes var(--duration,12s) ease-in-out infinite;
  animation-delay: var(--delay,0s);
}
@keyframes floatShapes { 0%,100% { transform: translateY(0) rotate(0deg); } 33% { transform: translateY(-20px) rotate(4deg); } 66% { transform: translateY(10px) rotate(-3deg); } }

/* ─── GenZ Animations ─────────────────────────────────────────── */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeSlideLeft {
  from { opacity: 0; transform: translateX(28px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes fadeIn       { from { opacity: 0; } to { opacity: 1; } }
@keyframes pulseDot     { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.4); } }
@keyframes heroBlobFloat{ 0%,100% { transform: translate(0,0) scale(1); } 33% { transform: translate(3%,5%) scale(1.06); } 66% { transform: translate(-2%,-3%) scale(0.96); } }
@keyframes spinSlow     { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes bounceY      { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes wiggle       { 0%,100% { transform: rotate(0deg); } 25% { transform: rotate(-5deg); } 75% { transform: rotate(5deg); } }
@keyframes labelPop     { from { opacity: 0; transform: scale(0.8); } to { opacity: 1; transform: scale(1); } }
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes glowPulse    { 0%,100% { box-shadow: 0 0 20px var(--orange-glow); } 50% { box-shadow: 0 0 40px var(--orange-glow), 0 0 80px rgba(255,96,0,0.15); } }
@keyframes borderFlow {
  0%   { border-color: var(--border-violet); }
  50%  { border-color: var(--border-orange); }
  100% { border-color: var(--border-violet); }
}
@keyframes slideInRight { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes pop          { 0%,100% { transform: scale(1); } 50% { transform: scale(1.12); } }

/* AOS animation classes */
[data-aos="fade-up"]    { opacity: 0; transform: translateY(40px); transition: all 0.75s var(--ease-spring); }
[data-aos="fade-right"] { opacity: 0; transform: translateX(-40px); transition: all 0.75s var(--ease-spring); }
[data-aos="fade-left"]  { opacity: 0; transform: translateX(40px); transition: all 0.75s var(--ease-spring); }
[data-aos="zoom-in"]    { opacity: 0; transform: scale(0.85); transition: all 0.75s var(--ease-spring); }
[data-aos].aos-animate  { opacity: 1; transform: translate(0) scale(1); }

/* ─── Copy Code Button ────────────────────────────────────────── */
.copy-code-btn {
  position: absolute; top: 8px; right: 8px;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-3); font-size: 0.75rem; font-family: var(--font-mono);
  padding: 4px 10px; border-radius: var(--r-sm);
  transition: all var(--t-fast) var(--ease);
}
.copy-code-btn:hover { border-color: var(--border-orange); color: var(--orange-light); }

/* ─── Suggest Box ─────────────────────────────────────────────── */
#search-suggestions {
  position: absolute; top: 100%; left: 0; right: 0; z-index: 50;
  background: var(--bg-card); border: 1px solid var(--border-violet);
  border-radius: var(--r-lg); box-shadow: var(--shadow-xl);
  margin-top: 4px; overflow: hidden;
}
.suggest-item  { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-3) var(--space-4); transition: background var(--t-fast) var(--ease); }
.suggest-item:hover { background: var(--purple-subtle); }
.suggest-type  { font-size: 0.65rem; font-weight: 700; text-transform: uppercase; padding: 2px 6px; border-radius: var(--r-xs); background: var(--orange-subtle); color: var(--orange-light); }
.suggest-title { font-size: 0.875rem; color: var(--text-2); }

/* ─── Utilities ───────────────────────────────────────────────── */
.text-center   { text-align: center; }
.text-left     { text-align: left; }
.text-right    { text-align: right; }
.text-muted    { color: var(--text-3); }
.text-violet, .text-purple { color: var(--purple-light); }
.text-cyan, .text-orange   { color: var(--orange); }
.text-green    { color: var(--green); }
.text-amber    { color: var(--amber); }
.text-red      { color: var(--red); }
.font-bold     { font-weight: 700; }
.font-black    { font-weight: 900; }
.mb-0 { margin-bottom: 0; } .mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); } .mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); } .mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.flex          { display: flex; }
.flex-center   { display: flex; align-items: center; justify-content: center; }
.flex-between  { display: flex; align-items: center; justify-content: space-between; }
.gap-2 { gap: var(--space-2); } .gap-4 { gap: var(--space-4); } .gap-6 { gap: var(--space-6); }
.hidden  { display: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.main-content { padding-top: var(--nav-h); }
.divider       { border: none; border-top: 1px solid var(--border); margin: var(--space-8) 0; }
.truncate-2    { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.truncate-3    { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.transition    { transition: var(--transition); }
.rounded-full  { border-radius: var(--r-full); }

/* ─── Dynamic Popup Ad ─────────────────────────────────────────── */
.popup-modal {
  position: fixed; inset: 0; z-index: var(--z-modal);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity var(--t-slow) var(--ease-premium);
}
.popup-modal.visible {
  opacity: 1; pointer-events: auto;
}
.popup-overlay {
  position: absolute; inset: 0;
  background: rgba(4,4,10,0.85);
  backdrop-filter: blur(8px);
}
.popup-card {
  position: relative; z-index: 2;
  width: 90%; max-width: 640px;
  background: var(--bg-card);
  border: 1px solid var(--border-violet);
  border-radius: var(--r-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl), 0 0 60px rgba(60, 42, 189, 0.25);
  transform: scale(0.9) translateY(20px);
  transition: transform var(--t-slow) var(--ease-spring);
}
.popup-modal.visible .popup-card {
  transform: scale(1) translateY(0);
}
.popup-close-btn {
  position: absolute; top: var(--space-4); right: var(--space-4); z-index: 10;
  width: 36px; height: 36px; border-radius: var(--r-full);
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-glass); border: 1px solid var(--border);
  color: var(--text-2); transition: all var(--t-fast) var(--ease-premium);
}
.popup-close-btn:hover {
  background: var(--orange-subtle); border-color: var(--border-orange); color: var(--orange-light);
  transform: rotate(90deg);
}
.popup-content-wrap {
  display: grid; grid-template-columns: 1.1fr 1fr;
}
@media (max-width: 640px) {
  .popup-content-wrap { grid-template-columns: 1fr; }
  .popup-image-wrap { height: 180px !important; }
}
.popup-image-wrap {
  position: relative; height: 100%; min-height: 280px; overflow: hidden;
  background: var(--bg-1);
}
.popup-img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 6s var(--ease-premium);
}
.popup-card:hover .popup-img { transform: scale(1.08); }
.popup-text-wrap {
  padding: var(--space-6) var(--space-6);
  display: flex; flex-direction: column; justify-content: center;
  align-items: flex-start;
}
.popup-badge {
  font-size: 0.7rem; font-weight: 800; letter-spacing: 0.08em;
  color: var(--orange-light); background: var(--orange-subtle);
  border: 1px solid var(--border-orange);
  padding: 4px 10px; border-radius: var(--r-full);
  margin-bottom: var(--space-4);
}
.popup-title {
  font-size: 1.5rem; font-weight: 900; line-height: 1.2;
  margin-bottom: var(--space-3);
  background: var(--grad-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.popup-desc {
  font-size: 0.85rem; color: var(--text-2); line-height: 1.6;
  margin-bottom: var(--space-5);
}
.popup-cta-btn {
  width: 100%; text-align: center;
}


/* ─── Responsive ──────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-inner  { grid-template-columns: 1fr; text-align: center; }
  .hero-visual { display: none; }
  .hero-ctas   { justify-content: center; }
  .hero-stats  { justify-content: center; }
  .feature-grid      { grid-template-columns: repeat(2, 1fr); }
  .subjects-grid     { grid-template-columns: repeat(2, 1fr); }
  .courses-grid      { grid-template-columns: repeat(2, 1fr); }
  .blogs-grid        { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid        { grid-template-columns: repeat(2, 1fr); }
  .footer-grid       { grid-template-columns: repeat(2, 1fr); gap: var(--space-8); }
  .download-inner    { grid-template-columns: 1fr; text-align: center; }
  .chapter-layout    { grid-template-columns: 1fr; }
  .chapter-sidebar   { display: none; }
  .chapter-content   { padding: var(--space-6); }
}

@media (max-width: 768px) {
  :root { --nav-h: 60px; }
  .navbar-links  { display: none; }
  .nav-hamburger { display: flex; }
  .feature-grid      { grid-template-columns: 1fr; }
  .subjects-grid     { grid-template-columns: 1fr; }
  .resources-grid    { grid-template-columns: 1fr; }
  .courses-grid      { grid-template-columns: 1fr; }
  .blogs-grid        { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .stats-grid        { grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
  .footer-grid       { grid-template-columns: 1fr; }
  .roadmap::before   { left: 24px; }
  .roadmap-step      { flex-direction: column; padding-left: 60px; }
  .roadmap-step:nth-child(even) { flex-direction: column; }
  .roadmap-step-node  { position: absolute; left: 0; }
  .roadmap-step-spacer{ display: none; }
  .container { padding: 0 var(--space-4); }
  .section   { padding: var(--space-16) 0; }
  .hero-stats{ gap: var(--space-6); }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2.4rem; }
  .hero-ctas  { flex-direction: column; width: 100%; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .app-badge  { width: 100%; }
}

/* ─── Accessibility: Reduced Motion ───────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ─── Safe Area (Notched Phones) ──────────────────────────────── */
@supports (padding: env(safe-area-inset-bottom)) {
  .navbar { padding-left: env(safe-area-inset-left); padding-right: env(safe-area-inset-right); }
  .footer { padding-bottom: env(safe-area-inset-bottom); }
  .mobile-menu { padding-bottom: env(safe-area-inset-bottom); }
}

/* ─── Desktop Optimization: 85% Zoom Look ─────────────────────── */
@media (min-width: 1025px) {
  html {
    zoom: 0.85;
  }
}

/* ─── Gamified Neobrutalist 3D UI ─────────────────────────────── */
.subject-layout-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: start;
}
@media (min-width: 1025px) {
  .subject-layout-grid {
    grid-template-columns: 2fr 1fr;
  }
}

.player-card-3d {
  background: var(--bg-card);
  border: 3px solid var(--text-1);
  border-radius: var(--r-xl);
  padding: var(--space-5);
  box-shadow: 6px 6px 0px var(--text-1);
  margin-bottom: var(--space-6);
  transition: all var(--t-base) var(--ease-spring);
  position: relative;
  overflow: hidden;
}
.player-card-3d:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0px var(--text-1);
}

.player-xp-bar {
  background: var(--bg-2);
  border: 2px solid var(--text-1);
  border-radius: var(--r-full);
  height: 14px;
  overflow: hidden;
  position: relative;
  margin-top: var(--space-2);
}
.player-xp-fill {
  height: 100%;
  background: var(--grad-orange);
  width: 0%;
  transition: width 0.8s var(--ease-spring);
}

.btn-complete-3d {
  background: var(--grad-orange);
  color: #fff;
  border: 3px solid var(--text-1);
  box-shadow: 4px 4px 0px var(--text-1);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--r-lg);
  font-size: 0.95rem;
  transition: all var(--t-fast) var(--ease-spring);
  cursor: pointer;
  width: 100%;
  margin-top: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}
.btn-complete-3d:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px var(--text-1);
}
.btn-complete-3d:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0px var(--text-1);
}
.btn-complete-3d.completed {
  background: var(--green);
  border-color: var(--text-1);
  box-shadow: 2px 2px 0px var(--text-1);
  transform: translate(2px, 2px);
  cursor: default;
  opacity: 0.9;
}

/* Chapter index layout highlights */
.chapter-index-card:hover .chapter-number-badge {
  transform: scale(1.15) rotate(-5deg);
  background: var(--grad-orange) !important;
  color: white !important;
}
.chapter-index-card:hover .chapter-arrow {
  transform: translateX(4px);
}