/* ═══════════════════════════════════════════════════════
   DESIGN SYSTEM — MOHZARG
   ═══════════════════════════════════════════════════════ */

:root {
  --purple-50: #f3f0ff;
  --purple-100: #e9e3ff;
  --purple-200: #d4c9ff;
  --purple-300: #b49dff;
  --purple-400: #9b6dff;
  --purple-500: #8b47ff;
  --purple-600: #7c28f5;
  --purple-700: #6b1ce0;
  --purple-800: #5a18b8;
  --purple-900: #3d0e8a;

  --gray-50:  #fafafa;
  --gray-100: #f4f4f5;
  --gray-200: #e4e4e7;
  --gray-300: #d1d1d6;
  --gray-400: #a1a1aa;
  --gray-500: #71717a;
  --gray-600: #52525b;
  --gray-700: #3f3f46;
  --gray-800: #27272a;
  --gray-900: #18181b;
  --gray-950: #09090b;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.12);
  --shadow-purple: 0 8px 32px rgba(139,71,255,.25);

  --font-fa: 'Vazirmatn', sans-serif;
  --font-en: 'DM Sans', sans-serif;

  --transition: all .25s cubic-bezier(.4,0,.2,1);
  --transition-slow: all .45s cubic-bezier(.4,0,.2,1);
}

/* ── DARK THEME ── */
[data-theme="dark"] {
  --bg-primary:    #070709;
  --bg-secondary:  #0f0f12;
  --bg-tertiary:   #161619;
  --bg-card:       #121215;
  --bg-card-hover: #1a1a1f;
  --bg-glass:      rgba(255,255,255,.04);
  --bg-glass-hover: rgba(255,255,255,.07);

  --text-primary:   #f4f4f5;
  --text-secondary: #a1a1aa;
  --text-muted:     #52525b;

  --border-primary:  rgba(255,255,255,.08);
  --border-hover:    rgba(255,255,255,.14);
  --border-purple:   rgba(139,71,255,.3);

  --accent:        #9b6dff;
  --accent-hover:  #b49dff;
  --accent-glow:   rgba(139,71,255,.35);

  --gradient-hero: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(107,28,224,.35) 0%, transparent 70%);
  --gradient-card: linear-gradient(135deg, rgba(139,71,255,.06) 0%, transparent 60%);
  --noise: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
}

/* ── LIGHT THEME ── */
[data-theme="light"] {
  --bg-primary:    #fefefe;
  --bg-secondary:  #f8f8fc;
  --bg-tertiary:   #f0f0f8;
  --bg-card:       #ffffff;
  --bg-card-hover: #f8f7ff;
  --bg-glass:      rgba(0,0,0,.03);
  --bg-glass-hover: rgba(0,0,0,.06);

  --text-primary:   #18181b;
  --text-secondary: #52525b;
  --text-muted:     #a1a1aa;

  --border-primary:  rgba(0,0,0,.06);
  --border-hover:    rgba(0,0,0,.10);
  --border-purple:   rgba(139,71,255,.25);

  --accent:        #7c28f5;
  --accent-hover:  #6b1ce0;
  --accent-glow:   rgba(124,40,245,.2);

  --gradient-hero: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(155,109,255,.18) 0%, transparent 70%);
  --gradient-card: linear-gradient(135deg, rgba(124,40,245,.04) 0%, transparent 60%);
}

/* ═══════════════════════════════════════════════════════
   RESET & BASE
   ═══════════════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-fa);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  transition: background .3s, color .3s;
  background-image: var(--gradient-hero);
  background-attachment: fixed;
}
[data-lang="en"] body, [data-lang="en"] { font-family: var(--font-en); }
[data-lang="en"] { direction: ltr; }
[data-lang="fa"] { direction: rtl; }

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

/* ═══════════════════════════════════════════════════════
   LAYOUT UTILITIES
   ═══════════════════════════════════════════════════════ */
.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { display: flex; flex-direction: column; }
.gap-4 { gap: 4px; } .gap-8 { gap: 8px; } .gap-12 { gap: 12px; }
.gap-16 { gap: 16px; } .gap-24 { gap: 24px; } .gap-32 { gap: 32px; }

/* ═══════════════════════════════════════════════════════
   TYPOGRAPHY
   ═══════════════════════════════════════════════════════ */
.display-xl { font-size: clamp(40px, 7vw, 76px); font-weight: 800; line-height: 1.08; letter-spacing: -0.03em; }
.display-lg { font-size: clamp(32px, 5vw, 56px); font-weight: 700; line-height: 1.12; letter-spacing: -0.025em; }
.display-md { font-size: clamp(24px, 3.5vw, 40px); font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
.heading { font-size: clamp(20px, 2.5vw, 28px); font-weight: 600; line-height: 1.3; }
.subheading { font-size: 16px; font-weight: 500; line-height: 1.5; }
.body-lg { font-size: 18px; line-height: 1.7; }
.body { font-size: 16px; line-height: 1.7; }
.body-sm { font-size: 14px; line-height: 1.6; }
.caption { font-size: 12px; line-height: 1.5; font-weight: 500; letter-spacing: .04em; text-transform: uppercase; }
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent); }
.text-center { text-align: center; }

/* gradient text */
.gradient-text {
  background: linear-gradient(135deg, var(--purple-400) 0%, var(--purple-600) 50%, var(--purple-400) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s linear infinite;
}
@keyframes shimmer { to { background-position: 200% center; } }

/* ═══════════════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════════════ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--radius-md);
  font-size: 15px; font-weight: 600; font-family: inherit;
  transition: var(--transition); white-space: nowrap; cursor: pointer;
  letter-spacing: -0.01em; position: relative; overflow: hidden;
}
.btn::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.12) 0%, transparent 60%);
  opacity: 0; transition: opacity .2s;
}
.btn:hover::before { opacity: 1; }
.btn:active { transform: scale(.97); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: var(--shadow-purple);
}
.btn-primary:hover { background: var(--purple-600); box-shadow: 0 12px 40px rgba(139,71,255,.4); transform: translateY(-1px); }

.btn-secondary {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
  backdrop-filter: blur(12px);
}
.btn-secondary:hover { background: var(--bg-glass-hover); border-color: var(--border-hover); transform: translateY(-1px); }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid transparent;
  padding: 10px 16px;
}
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-glass); }

.btn-lg { padding: 18px 36px; font-size: 17px; border-radius: var(--radius-lg); }
.btn-sm { padding: 9px 18px; font-size: 13px; border-radius: var(--radius-sm); }

/* ═══════════════════════════════════════════════════════
   BADGES & TAGS
   ═══════════════════════════════════════════════════════ */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: 100px;
  font-size: 12px; font-weight: 600; letter-spacing: .03em;
}
.badge-purple { background: rgba(155,109,255,.12); color: var(--purple-400); border: 1px solid rgba(155,109,255,.2); }
.badge-green  { background: rgba(52,211,153,.1);  color: #34d399; border: 1px solid rgba(52,211,153,.2); }
.badge-amber  { background: rgba(251,191,36,.1);  color: #fbbf24; border: 1px solid rgba(251,191,36,.2); }

/* ═══════════════════════════════════════════════════════
   CARDS
   ═══════════════════════════════════════════════════════ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: 32px;
  transition: var(--transition);
  background-image: var(--gradient-card);
  position: relative; overflow: hidden;
}
.card::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at top right, var(--accent-glow) 0%, transparent 60%);
  opacity: 0; transition: opacity .3s; pointer-events: none;
}
.card:hover { border-color: var(--border-purple); transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.card:hover::before { opacity: .5; }

.card-sm { padding: 20px 24px; border-radius: var(--radius-lg); }
.card-glass {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
}

/* ═══════════════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════════════ */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0 24px;
  transition: var(--transition);
}
#navbar.scrolled {
  background: rgba(7,7,9,.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-primary);
  box-shadow: 0 4px 24px rgba(0,0,0,.2);
}
[data-theme="light"] #navbar.scrolled { background: rgba(254,254,254,.85); }

.nav-inner {
  max-width: 1180px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.nav-logo {
  font-size: 22px; font-weight: 800; letter-spacing: -0.04em;
  display: flex; align-items: center; gap: 10px;
}
.logo-icon {
  width: 36px; height: 36px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 900; color: #fff;
  box-shadow: 0 4px 12px rgba(139,71,255,.35);
}
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 8px 14px; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 500; color: var(--text-secondary);
  transition: var(--transition);
}
.nav-links a:hover { color: var(--text-primary); background: var(--bg-glass); }

.nav-actions { display: flex; align-items: center; gap: 10px; }

.theme-toggle {
  width: 38px; height: 38px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-glass); border: 1px solid var(--border-primary);
  color: var(--text-secondary); font-size: 16px;
  transition: var(--transition); cursor: pointer;
}
.theme-toggle:hover { color: var(--text-primary); background: var(--bg-glass-hover); }

.lang-toggle {
  padding: 7px 12px; border-radius: var(--radius-sm);
  background: var(--bg-glass); border: 1px solid var(--border-primary);
  font-size: 12px; font-weight: 600; letter-spacing: .04em;
  color: var(--text-secondary); cursor: pointer; transition: var(--transition);
}
.lang-toggle:hover { color: var(--text-primary); }

.mobile-menu-btn {
  display: none; width: 38px; height: 38px; border-radius: var(--radius-sm);
  background: var(--bg-glass); border: 1px solid var(--border-primary);
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.mobile-menu-btn span {
  display: block; width: 18px; height: 1.5px;
  background: var(--text-primary); border-radius: 2px; transition: var(--transition);
}

.mobile-menu {
  display: none; position: fixed; top: 68px; left: 0; right: 0;
  background: var(--bg-secondary); border-bottom: 1px solid var(--border-primary);
  padding: 16px 24px 24px; z-index: 999; flex-direction: column; gap: 4px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { padding: 12px 16px; border-radius: var(--radius-sm); font-weight: 500; color: var(--text-secondary); }
.mobile-menu a:hover { color: var(--text-primary); background: var(--bg-glass); }

/* ═══════════════════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════════════════ */
#hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 120px 24px 80px; text-align: center; position: relative; overflow: hidden;
}

/* Abstract background orbs */
.hero-orb {
  position: absolute; border-radius: 50%; filter: blur(80px);
  animation: float 8s ease-in-out infinite; pointer-events: none;
}
.hero-orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(124,40,245,.2) 0%, transparent 70%);
  top: -200px; left: 50%; transform: translateX(-50%);
}
.hero-orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(90,24,184,.15) 0%, transparent 70%);
  top: 20%; right: -100px;
  animation-delay: -3s;
}
.hero-orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(180,157,255,.1) 0%, transparent 70%);
  bottom: 10%; left: -50px;
  animation-delay: -5s;
}

/* Grid pattern overlay */
.hero-grid {
  position: absolute; inset: 0; pointer-events: none; opacity: .03;
  background-image: linear-gradient(var(--text-primary) 1px, transparent 1px), linear-gradient(90deg, var(--text-primary) 1px, transparent 1px);
  background-size: 60px 60px;
}

@keyframes float {
  0%, 100% { transform: translateY(0) translateX(-50%); }
  50% { transform: translateY(-40px) translateX(-50%); }
}
@keyframes float2 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-30px); }
}

.hero-content { position: relative; z-index: 2; max-width: 860px; }
.hero-badge { margin-bottom: 24px; }
.hero-title { margin-bottom: 24px; }
.hero-subtitle { max-width: 600px; margin: 0 auto 40px; color: var(--text-secondary); }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; margin-bottom: 64px; }

/* Stats bar */
.hero-stats {
  display: flex; align-items: center; justify-content: center;
  gap: 48px; flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-number { font-size: 32px; font-weight: 800; letter-spacing: -0.03em; color: var(--text-primary); }
.stat-label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }
.stat-divider { width: 1px; height: 48px; background: var(--border-primary); }

/* Floating device mockup */
.hero-device {
  position: relative; margin-top: 80px; display: inline-block;
  max-width: 900px; width: 100%;
}
.hero-device-frame {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,.4), 0 0 0 1px rgba(255,255,255,.04);
  animation: float2 6s ease-in-out infinite;
}
.device-bar {
  padding: 14px 20px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-primary);
  display: flex; align-items: center; gap: 8px;
}
.device-dot { width: 10px; height: 10px; border-radius: 50%; }
.device-url {
  flex: 1; height: 26px; background: var(--bg-glass);
  border-radius: 6px; display: flex; align-items: center;
  padding: 0 12px; font-size: 12px; color: var(--text-muted);
  border: 1px solid var(--border-primary);
  margin: 0 40px;
}
.device-screen { padding: 32px; min-height: 280px; }

/* Score grid inside device */
.score-preview {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
}
.score-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}
.score-ring {
  width: 52px; height: 52px; margin: 0 auto 8px;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 800;
  position: relative;
}
.score-ring.excellent { background: rgba(52,211,153,.15); color: #34d399; border: 2px solid rgba(52,211,153,.3); }
.score-ring.good      { background: rgba(251,191,36,.12); color: #fbbf24; border: 2px solid rgba(251,191,36,.25); }
.score-ring.poor      { background: rgba(248,113,113,.12); color: #f87171; border: 2px solid rgba(248,113,113,.25); }
.score-name { font-size: 11px; color: var(--text-muted); font-weight: 500; }

/* Floating chips */
.floating-chip {
  position: absolute; display: flex; align-items: center; gap: 8px;
  padding: 10px 16px; border-radius: 100px;
  background: var(--bg-card); border: 1px solid var(--border-primary);
  font-size: 12px; font-weight: 600; white-space: nowrap;
  box-shadow: var(--shadow-md);
  animation: chipFloat 4s ease-in-out infinite;
}
.chip-icon { width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 13px; }
.chip-1 { top: 15%; right: -80px; animation-delay: 0s; }
.chip-2 { bottom: 20%; left: -100px; animation-delay: -2s; }
@keyframes chipFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ═══════════════════════════════════════════════════════
   AI ANALYZER SECTION
   ═══════════════════════════════════════════════════════ */
#analyzer {
  padding: 80px 0;
  background: linear-gradient(180deg, transparent 0%, rgba(124,40,245,.05) 50%, transparent 100%);
}

.analyzer-card {
  background: var(--bg-card);
  border: 1px solid var(--border-purple);
  border-radius: var(--radius-2xl);
  padding: 48px;
  position: relative; overflow: hidden;
  box-shadow: 0 0 80px rgba(124,40,245,.1);
}
.analyzer-card::before {
  content: ''; position: absolute;
  top: -1px; left: 10%; right: 10%; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.analyzer-input-group {
  display: flex; gap: 12px; margin-top: 32px;
  max-width: 640px; margin-left: auto; margin-right: auto;
}
.analyzer-input {
  flex: 1; padding: 16px 20px; border-radius: var(--radius-md);
  background: var(--bg-secondary); border: 1.5px solid var(--border-primary);
  color: var(--text-primary); font-size: 15px; font-family: inherit;
  transition: var(--transition); outline: none;
}
.analyzer-input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(155,109,255,.12); }
.analyzer-input::placeholder { color: var(--text-muted); }

/* Progress / Results */
.analyzer-results { display: none; margin-top: 40px; }
.analyzer-results.visible { display: block; }

.progress-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.progress-bar-wrap { background: var(--bg-glass); border-radius: 100px; height: 6px; overflow: hidden; margin-bottom: 20px; }
.progress-bar { height: 100%; border-radius: 100px; background: linear-gradient(90deg, var(--purple-600), var(--purple-400)); transition: width 1.5s cubic-bezier(.4,0,.2,1); width: 0; }

.scores-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.score-item {
  background: var(--bg-glass);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  transition: var(--transition);
  opacity: 0; transform: translateY(12px);
}
.score-item.revealed { opacity: 1; transform: translateY(0); }
.score-item-label { font-size: 12px; color: var(--text-muted); margin-bottom: 12px; font-weight: 600; letter-spacing: .03em; }
.score-item-val { font-size: 28px; font-weight: 800; letter-spacing: -0.03em; }
.score-e { color: #34d399; } .score-g { color: #fbbf24; } .score-p { color: #f87171; }

.score-arc { margin: 0 auto 8px; width: 60px; height: 30px; overflow: visible; }

.analyzer-cta { margin-top: 32px; text-align: center; }
.analyzer-cta p { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; }

/* ═══════════════════════════════════════════════════════
   SERVICES SECTION
   ═══════════════════════════════════════════════════════ */
#services { padding: 96px 0; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  transition: var(--transition);
  background-image: var(--gradient-card);
  position: relative; overflow: hidden; cursor: default;
}
.service-card:hover { border-color: var(--border-purple); transform: translateY(-4px); box-shadow: var(--shadow-lg), 0 0 40px rgba(155,109,255,.08); }

.service-icon {
  width: 52px; height: 52px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 24px;
  background: rgba(155,109,255,.12); border: 1px solid rgba(155,109,255,.2);
  transition: var(--transition);
}
.service-card:hover .service-icon { background: rgba(155,109,255,.2); transform: scale(1.05); }

.service-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; letter-spacing: -0.02em; }
.service-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 20px; }
.service-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.service-tag {
  padding: 4px 10px; border-radius: 100px;
  font-size: 11px; font-weight: 600;
  background: var(--bg-glass); border: 1px solid var(--border-primary);
  color: var(--text-muted);
}

/* ═══════════════════════════════════════════════════════
   PORTFOLIO SECTION
   ═══════════════════════════════════════════════════════ */
#portfolio { padding: 96px 0; }

.portfolio-tabs {
  display: flex; align-items: center; gap: 6px;
  background: var(--bg-glass);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md); padding: 5px;
  width: fit-content; margin: 32px auto 0;
}
.portfolio-tab {
  padding: 9px 20px; border-radius: var(--radius-sm);
  font-size: 13px; font-weight: 600; color: var(--text-secondary);
  cursor: pointer; transition: var(--transition);
}
.portfolio-tab.active {
  background: var(--bg-card);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.portfolio-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition);
}
.portfolio-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--border-hover); }

.portfolio-thumb {
  height: 200px; position: relative; overflow: hidden;
  background: var(--bg-tertiary);
  display: flex; align-items: center; justify-content: center;
}
.portfolio-mockup {
  width: 85%; height: 85%; border-radius: var(--radius-md);
  border: 1px solid var(--border-primary);
  background: var(--bg-secondary);
  display: flex; flex-direction: column; overflow: hidden;
}
.mockup-bar { height: 24px; background: var(--bg-tertiary); border-bottom: 1px solid var(--border-primary); display: flex; align-items: center; padding: 0 10px; gap: 5px; }
.mockup-dot { width: 7px; height: 7px; border-radius: 50%; }
.mockup-content { flex: 1; padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.mockup-line { height: 6px; border-radius: 3px; background: var(--bg-glass); border: 1px solid var(--border-primary); }
.mockup-hero-line { height: 18px; border-radius: 4px; background: rgba(155,109,255,.15); border: 1px solid rgba(155,109,255,.2); width: 70%; }
.mockup-grid-line { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 6px; height: 40px; }
.mockup-block { background: var(--bg-glass); border-radius: 4px; border: 1px solid var(--border-primary); }

.portfolio-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(0,0,0,.6) 0%, transparent 60%);
  opacity: 0; transition: var(--transition);
  display: flex; align-items: flex-end; padding: 20px;
}
.portfolio-card:hover .portfolio-overlay { opacity: 1; }
.portfolio-overlay-btn { background: #fff; color: #000; padding: 8px 16px; border-radius: var(--radius-sm); font-size: 13px; font-weight: 600; }

.portfolio-info { padding: 24px; }
.portfolio-cat { font-size: 11px; font-weight: 600; color: var(--accent); letter-spacing: .05em; text-transform: uppercase; margin-bottom: 8px; }
.portfolio-info h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; letter-spacing: -0.02em; }
.portfolio-info p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 16px; }

.portfolio-metrics { display: flex; gap: 16px; }
.metric { text-align: center; }
.metric-val { font-size: 17px; font-weight: 800; color: var(--accent); letter-spacing: -0.02em; }
.metric-label { font-size: 10px; color: var(--text-muted); font-weight: 600; letter-spacing: .03em; margin-top: 2px; }

/* ═══════════════════════════════════════════════════════
   BEFORE/AFTER SECTION
   ═══════════════════════════════════════════════════════ */
#before-after { padding: 96px 0; }

.ba-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-2xl);
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px; align-items: center;
  margin-bottom: 24px;
}
.ba-side h4 { font-size: 13px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; margin-bottom: 16px; }
.ba-before h4 { color: #f87171; }
.ba-after h4 { color: #34d399; }

.ba-scores { display: flex; flex-direction: column; gap: 10px; }
.ba-score-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.ba-score-name { font-size: 13px; color: var(--text-secondary); min-width: 80px; }
.ba-score-bar { flex: 1; height: 5px; background: var(--bg-glass); border-radius: 100px; overflow: hidden; }
.ba-score-fill { height: 100%; border-radius: 100px; }
.fill-before { background: linear-gradient(90deg, #f87171, #fb923c); }
.fill-after  { background: linear-gradient(90deg, #34d399, #10b981); }
.ba-score-num { font-size: 13px; font-weight: 700; min-width: 32px; text-align: right; }

.ba-divider {
  width: 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, var(--purple-600), var(--purple-400));
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700; color: #fff;
  box-shadow: var(--shadow-purple); flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════
   PROCESS SECTION
   ═══════════════════════════════════════════════════════ */
#process { padding: 96px 0; }

.process-timeline { position: relative; margin-top: 64px; }
.process-line {
  position: absolute; top: 28px; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: .3;
}
[data-lang="fa"] .process-line { background: linear-gradient(270deg, transparent, var(--accent), transparent); }

.process-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; position: relative; }
.process-step { text-align: center; padding: 0 8px; }
.process-num {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--bg-card); border: 2px solid var(--border-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 800; color: var(--text-muted);
  margin: 0 auto 20px; transition: var(--transition); position: relative; z-index: 2;
}
.process-step.active .process-num {
  background: var(--accent); border-color: var(--accent);
  color: #fff; box-shadow: var(--shadow-purple);
}
.process-step h4 { font-size: 14px; font-weight: 700; margin-bottom: 8px; }
.process-step p { font-size: 12px; color: var(--text-muted); line-height: 1.6; }

/* ═══════════════════════════════════════════════════════
   TESTIMONIALS
   ═══════════════════════════════════════════════════════ */
#testimonials { padding: 96px 0; }

.testimonials-marquee {
  overflow: hidden; margin-top: 56px;
  -webkit-mask: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
  mask: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}
.marquee-track {
  display: flex; gap: 24px; width: max-content;
  animation: marquee 40s linear infinite;
}
.marquee-track:hover { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
[data-lang="fa"] .marquee-track { animation: marquee-rtl 40s linear infinite; }
@keyframes marquee-rtl { from { transform: translateX(0); } to { transform: translateX(50%); } }

.testimonial-card {
  flex-shrink: 0; width: 320px;
  background: var(--bg-card); border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl); padding: 28px;
}
.testimonial-stars { display: flex; gap: 3px; margin-bottom: 16px; }
.star { color: #fbbf24; font-size: 14px; }
.testimonial-text { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 20px; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.author-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--purple-600), var(--purple-400));
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700; color: #fff;
}
.author-name { font-size: 13px; font-weight: 700; }
.author-role { font-size: 11px; color: var(--text-muted); margin-top: 2px; }

/* ═══════════════════════════════════════════════════════
   PRICING SECTION
   ═══════════════════════════════════════════════════════ */
#pricing { padding: 96px 0; }

.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; align-items: start; }

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl); padding: 36px 32px;
  transition: var(--transition);
}
.pricing-card.featured {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(155,109,255,.06) 0%, var(--bg-card) 40%);
  position: relative;
  box-shadow: 0 0 60px rgba(155,109,255,.15);
  transform: scale(1.02);
}
.pricing-card.featured::before {
  content: ''; position: absolute;
  top: -1px; left: 20%; right: 20%; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.pricing-badge { margin-bottom: 12px; }
.pricing-name { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.pricing-desc { font-size: 13px; color: var(--text-secondary); margin-bottom: 24px; line-height: 1.6; }
.pricing-price { margin-bottom: 28px; }
.price-amount { font-size: 40px; font-weight: 900; letter-spacing: -0.04em; }
.price-label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }
.price-from { font-size: 13px; color: var(--text-muted); font-weight: 400; }

.pricing-features { display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; }
.pricing-feature { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--text-secondary); }
.feature-check { color: #34d399; font-size: 14px; flex-shrink: 0; margin-top: 2px; }
.feature-x { color: var(--text-muted); font-size: 14px; flex-shrink: 0; margin-top: 2px; }

/* ═══════════════════════════════════════════════════════
   TRUST / STATS SECTION
   ═══════════════════════════════════════════════════════ */
#trust { padding: 96px 0; }

.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 56px; }
.trust-item { text-align: center; padding: 32px 20px; }
.trust-icon { font-size: 32px; margin-bottom: 16px; }
.trust-val { font-size: 40px; font-weight: 900; letter-spacing: -0.04em; color: var(--accent); margin-bottom: 8px; }
.trust-label { font-size: 14px; color: var(--text-secondary); }
.trust-divider { width: 1px; background: var(--border-primary); align-self: stretch; }

/* ═══════════════════════════════════════════════════════
   FAQ SECTION
   ═══════════════════════════════════════════════════════ */
#faq { padding: 96px 0; }

.faq-list { max-width: 720px; margin: 56px auto 0; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  overflow: hidden; transition: border-color .2s;
}
.faq-item.open { border-color: var(--border-purple); }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; gap: 16px;
  font-size: 15px; font-weight: 600; text-align: right; cursor: pointer;
  background: none; color: var(--text-primary); font-family: inherit;
  transition: var(--transition);
}
[data-lang="en"] .faq-question { text-align: left; }
.faq-question:hover { background: var(--bg-glass); }
.faq-chevron { font-size: 14px; color: var(--text-muted); transition: transform .3s; flex-shrink: 0; }
.faq-item.open .faq-chevron { transform: rotate(180deg); color: var(--accent); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s cubic-bezier(.4,0,.2,1); }
.faq-answer-inner { padding: 0 24px 20px; font-size: 14px; color: var(--text-secondary); line-height: 1.8; }

/* ═══════════════════════════════════════════════════════
   FINAL CTA SECTION
   ═══════════════════════════════════════════════════════ */
#final-cta { padding: 96px 0; }

.cta-box {
  background: linear-gradient(135deg, rgba(124,40,245,.12) 0%, rgba(155,109,255,.06) 50%, transparent 100%);
  border: 1px solid var(--border-purple);
  border-radius: var(--radius-2xl); padding: 80px 48px;
  text-align: center; position: relative; overflow: hidden;
}
.cta-box::before {
  content: ''; position: absolute;
  top: -1px; left: 10%; right: 10%; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.cta-box-title { max-width: 600px; margin: 0 auto 16px; }
.cta-box-sub { max-width: 480px; margin: 0 auto 40px; color: var(--text-secondary); }

/* ═══════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════ */
footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--border-primary);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 56px; }
.footer-brand-desc { font-size: 14px; color: var(--text-muted); line-height: 1.8; margin-top: 16px; max-width: 280px; }
.footer-social { display: flex; gap: 10px; margin-top: 24px; }
.social-link {
  width: 36px; height: 36px; border-radius: var(--radius-sm);
  background: var(--bg-glass); border: 1px solid var(--border-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; color: var(--text-muted); transition: var(--transition);
  text-decoration: none;
}
.social-link:hover { color: var(--text-primary); background: var(--bg-glass-hover); border-color: var(--border-hover); }

.footer-col h4 { font-size: 13px; font-weight: 700; letter-spacing: .03em; margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 13px; color: var(--text-muted); transition: color .2s; }
.footer-links a:hover { color: var(--text-primary); }

.footer-bottom {
  border-top: 1px solid var(--border-primary); padding-top: 28px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.footer-copy { font-size: 13px; color: var(--text-muted); }
.footer-legal { display: flex; gap: 20px; }
.footer-legal a { font-size: 13px; color: var(--text-muted); transition: color .2s; }
.footer-legal a:hover { color: var(--text-primary); }

/* ═══════════════════════════════════════════════════════
   SECTION HEADERS
   ═══════════════════════════════════════════════════════ */
.section-header { text-align: center; max-width: 600px; margin: 0 auto; }
.section-header h2 { margin-top: 12px; }
.section-header p { margin-top: 16px; color: var(--text-secondary); }

/* ═══════════════════════════════════════════════════════
   SCROLL ANIMATIONS
   ═══════════════════════════════════════════════════════ */
.fade-up { opacity: 0; transform: translateY(24px); transition: opacity .6s cubic-bezier(.4,0,.2,1), transform .6s cubic-bezier(.4,0,.2,1); }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-up.d1 { transition-delay: .1s; }
.fade-up.d2 { transition-delay: .2s; }
.fade-up.d3 { transition-delay: .3s; }
.fade-up.d4 { transition-delay: .4s; }
.fade-up.d5 { transition-delay: .5s; }

/* ═══════════════════════════════════════════════════════
   ABOUT SECTION
   ═══════════════════════════════════════════════════════ */
#about { padding: 96px 0; }

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; margin-top: 64px; }
.about-avatar {
  position: relative; display: flex; align-items: center; justify-content: center;
}
.avatar-frame {
  width: 340px; height: 400px; border-radius: var(--radius-2xl);
  background: linear-gradient(135deg, rgba(124,40,245,.15), rgba(155,109,255,.08));
  border: 1px solid var(--border-purple);
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.avatar-placeholder { font-size: 80px; line-height: 1; }
.avatar-glow {
  position: absolute; width: 200px; height: 200px; border-radius: 50%;
  background: radial-gradient(circle, rgba(124,40,245,.3), transparent);
  filter: blur(40px); bottom: -40px; right: -40px;
}

.about-skills { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 32px; }
.skill-item {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px; border-radius: var(--radius-sm);
  background: var(--bg-glass); border: 1px solid var(--border-primary);
  font-size: 13px; font-weight: 500;
}
.skill-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }

/* ═══════════════════════════════════════════════════════
   NOTIFICATION TOAST
   ═══════════════════════════════════════════════════════ */
.toast {
  position: fixed; bottom: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: 14px 20px; font-size: 14px; font-weight: 500;
  box-shadow: var(--shadow-lg);
  transform: translateY(80px); opacity: 0;
  transition: var(--transition);
  z-index: 2000; max-width: 320px;
  display: flex; align-items: center; gap: 10px;
}
[data-lang="fa"] .toast { right: 24px; }
[data-lang="en"] .toast { left: 24px; }
.toast.show { transform: translateY(0); opacity: 1; }
.toast-icon { font-size: 18px; }

/* ═══════════════════════════════════════════════════════
   SCROLLBAR
   ═══════════════════════════════════════════════════════ */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--gray-700); border-radius: 100px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-600); }

/* ═══════════════════════════════════════
   USP STRIP
═══════════════════════════════════════ */
.usp-strip {
  padding: 20px 5%;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  position: relative;
}
.usp-track {
  display: flex;
  gap: 48px;
  animation: marquee 20s linear infinite;
  white-space: nowrap;
}
.usp-track:hover { animation-play-state: paused; }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.usp-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  flex-shrink: 0;
}
.usp-item .usp-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .grid-3, .services-grid, .portfolio-grid, .pricing-grid { grid-template-columns: 1fr 1fr; }
  .process-steps { grid-template-columns: repeat(3, 1fr); }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .avatar-frame { width: 280px; height: 320px; margin: 0 auto; }
  .ba-card { grid-template-columns: 1fr; }
  .ba-divider { width: 40px; height: 40px; margin: 0 auto; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-actions .btn { display: none; }
  .mobile-menu-btn { display: flex; }

  .hero-actions { flex-direction: column; align-items: center; }
  .hero-stats { gap: 24px; }
  .stat-divider { display: none; }

  .grid-2, .grid-3, .services-grid, .portfolio-grid,
  .pricing-grid, .process-steps, .trust-grid, .scores-grid { grid-template-columns: 1fr; }

  .section { padding: 64px 0; }
  .analyzer-card { padding: 28px 20px; }
  .analyzer-input-group { flex-direction: column; }
  .hero-device { display: none; }
  .cta-box { padding: 48px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .pricing-card.featured { transform: none; }
  .chip-1, .chip-2 { display: none; }
}

/* ═══════════════════════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════════════════════ */
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .5; } }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.loading-spin { animation: spin 1s linear infinite; }