/* ==========================================================================
   Uzman Hukuk - Kurumsal CSS & Mobil-Perfect Responsive Tasarım
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700&display=swap');

:root {
  /* Color Palette */
  --bg-body: #090d16;
  --bg-surface: #0f172a;
  --bg-card: #1e293b;
  --bg-card-glass: rgba(15, 23, 42, 0.85);
  --bg-input: #0b1329;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: #10b981;
  --border-hover: rgba(255, 255, 255, 0.18);
  
  /* Accents */
  --accent-emerald: #10b981;
  --accent-emerald-hover: #059669;
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-amber: #f59e0b;
  --accent-red: #ef4444;
  
  /* Text */
  --text-white: #ffffff;
  --text-heading: #f8fafc;
  --text-body: #94a3b8;
  --text-muted: #64748b;
  
  /* Radii & Layout */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  
  --font-family: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  background-color: var(--bg-body);
  color: var(--text-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  background-color: var(--bg-body);
  background-image: 
    radial-gradient(at 0% 0%, rgba(16, 185, 129, 0.08) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(59, 130, 246, 0.06) 0px, transparent 50%);
  min-height: 100vh;
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-body); }
::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.15); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-emerald); }

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-heading);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.45rem); }

a {
  color: var(--accent-emerald);
  text-decoration: none;
  transition: var(--transition);
}

a:hover { color: #34d399; }

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Badges & Buttons */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: var(--accent-emerald);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  outline: none;
  min-height: 44px;
  max-width: 100%;
  box-sizing: border-box;
  text-align: center;
  white-space: normal;
  word-break: break-word;
}

.btn-primary {
  background: var(--accent-emerald);
  color: #040711;
  box-shadow: 0 2px 10px rgba(16, 185, 129, 0.25);
}

.btn-primary:hover {
  background: var(--accent-emerald-hover);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-heading);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-hover);
  color: var(--text-white);
}

/* Glass Card */
.glass-card {
  background: var(--bg-card-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* ==========================================================================
   SITE HEADER & NAVIGATION (MOBILE FIXES INCLUDED)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: rgba(9, 13, 22, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
}

.site-header.scrolled {
  padding: 12px 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-white);
  letter-spacing: -0.03em;
  flex-shrink: 0;
}

.logo-icon {
  width: 34px;
  height: 34px;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-emerald);
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-subtitle {
  display: block;
  font-size: 0.62rem;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.05em;
  line-height: 1;
  margin-top: 2px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  color: var(--text-body);
  font-weight: 500;
  font-size: 0.9rem;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-white);
}

.nav-highlight {
  color: var(--accent-emerald);
  font-weight: 700;
}

.mobile-cta-item {
  display: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.mobile-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-white);
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.mobile-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Hero Section */
.hero-section {
  padding: 140px 0 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-body);
  margin: 18px 0 24px;
  line-height: 1.7;
}

.hero-security-notice {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.2);
  padding: 16px;
  border-radius: var(--radius-md);
  margin-top: 24px;
  font-size: 0.88rem;
  color: #fca5a5;
}

.hero-security-notice svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: var(--accent-red);
}

/* Form Controls */
.form-title { font-size: 1.3rem; margin-bottom: 6px; }
.form-subtitle { font-size: 0.88rem; color: var(--text-body); margin-bottom: 20px; }

.form-step { display: none; }
.form-step.active { display: block; animation: fadeIn 0.3s ease; }

.consent-box {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  padding: 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
  font-size: 0.82rem;
  color: var(--text-body);
  line-height: 1.6;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  margin-top: 3px;
  accent-color: var(--accent-emerald);
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; color: var(--text-heading); }

.form-control {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-white);
  font-family: inherit;
  font-size: 0.92rem;
  transition: var(--transition);
  min-height: 44px;
}

.form-control:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

/* Explicit styling for select dropdown popup items across all browsers & OS */
select.form-control {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg fill='%2310b981' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px !important;
  cursor: pointer;
}

select.form-control option {
  background-color: #0f172a !important;
  color: #f8fafc !important;
  padding: 14px 18px !important;
  font-size: 0.95rem !important;
}

select.form-control option:hover,
select.form-control option:focus,
select.form-control option:active,
select.form-control option:checked {
  background-color: #1e293b !important;
  color: #10b981 !important;
}


/* Media Bar & Stats */
.media-section {
  padding: 36px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.2);
}

.media-title {
  text-align: center;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.media-logos {
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 24px;
}

.media-logo-text {
  font-size: 1.1rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.4);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.stat-item {
  padding: 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-emerald);
  margin-bottom: 2px;
}

.stat-label { font-size: 0.85rem; color: var(--text-body); }

/* Services Grid & Section Layout */
.section-padding { padding: 48px 0; }

.section-header {
  text-align: center;
  max-width: 660px;
  margin: 0 auto 45px;
}

.section-header p { color: var(--text-body); font-size: 1rem; margin-top: 12px; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.service-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
  background: var(--bg-card);
}

.service-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--accent-emerald);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.service-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.service-card p { color: var(--text-body); font-size: 0.88rem; line-height: 1.6; }

/* Video Lessons Hub */
.lessons-wrapper {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 24px;
  align-items: start;
}

.video-container {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.lessons-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.lesson-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.lesson-card:hover, .lesson-card.active {
  background: var(--bg-card);
  border-color: var(--accent-emerald);
}

.lesson-play-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent-emerald);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.lesson-info h4 { font-size: 0.9rem; margin-bottom: 2px; }
.lesson-info p { font-size: 0.8rem; color: var(--text-muted); }

/* Simulator Section */
.simulator-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.sim-input-group { display: flex; gap: 12px; margin: 20px 0; }

.sim-result {
  display: none;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  padding: 20px;
  border-radius: var(--radius-md);
  margin-top: 20px;
}

.sim-progress-bar {
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  overflow: hidden;
  margin: 14px 0;
}

.sim-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--accent-emerald);
  transition: width 0.3s ease;
}

/* Stepper Timeline & Portal */
.stepper-wrapper {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-bottom: 36px;
}

.stepper-wrapper::before {
  content: '';
  position: absolute;
  top: 18px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--border-color);
  z-index: 1;
}

.step-item {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex: 1;
  text-align: center;
}

.step-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-body);
  border: 2px solid var(--border-color);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  transition: var(--transition);
}

.step-title { font-size: 0.82rem; font-weight: 600; color: var(--text-muted); }

.step-item.active .step-number {
  background: var(--accent-emerald);
  border-color: var(--accent-emerald);
  color: #040711;
}

.step-item.active .step-title { color: var(--text-white); }

.step-item.completed .step-number {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: #ffffff;
}

/* Stage Box */
.stage-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 24px;
  position: relative;
}

.stage-box.locked { opacity: 0.6; pointer-events: none; }

.stage-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.stage-badge.locked-badge { background: rgba(239, 68, 68, 0.12); color: #fca5a5; border: 1px solid rgba(239, 68, 68, 0.25); }
.stage-badge.active-badge { background: rgba(16, 185, 129, 0.12); color: var(--accent-emerald); border: 1px solid rgba(16, 185, 129, 0.25); }

/* DocuSign-Grade Professional Signature UI */
.sig-tabs-header {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 10px;
}

.sig-tab-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  color: var(--text-body);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.sig-tab-btn:hover, .sig-tab-btn.active {
  background: rgba(16, 185, 129, 0.12);
  border-color: var(--accent-emerald);
  color: var(--accent-emerald);
}

.signature-container {
  background: #040715;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 20px 20px;
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-md);
  padding: 16px;
  margin: 14px 0;
  position: relative;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.8);
}

.signature-canvas {
  width: 100%;
  height: 200px;
  background: transparent;
  cursor: crosshair;
  touch-action: none;
  position: relative;
  z-index: 2;
}

/* Legal Watermark Stamp & Baseline */
.signature-container::before {
  content: 'GÜVENLİ DİJİTAL İMZA • UZMAN HUKUK E-İMZA PROTOKOLÜ';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-8deg);
  font-family: var(--font-family);
  font-size: 0.85rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.04);
  letter-spacing: 0.15em;
  pointer-events: none;
  white-space: nowrap;
  z-index: 1;
}

.signature-baseline {
  position: absolute;
  bottom: 45px;
  left: 30px;
  right: 30px;
  height: 1px;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.15);
  pointer-events: none;
  z-index: 1;
}

.signature-baseline::before {
  content: '✕ ';
  position: absolute;
  left: 0;
  bottom: 4px;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 700;
}

.signature-tools {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Calligraphy / Cursive Font Cards for Type Mode */
.sig-font-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.sig-font-preview {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

.sig-font-preview:hover, .sig-font-preview.selected {
  border-color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.08);
}

.sig-font-text {
  font-size: 1.8rem;
  color: var(--accent-emerald);
  line-height: 1.2;
}

.sig-font-meta {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 6px;
}


.legal-terms-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-emerald);
  border-radius: var(--radius-sm);
  padding: 18px;
  margin-bottom: 20px;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text-body);
}

/* Dropzone & Exchanges */
.upload-dropzone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  text-align: center;
  background: rgba(0, 0, 0, 0.2);
  cursor: pointer;
  transition: var(--transition);
}

.upload-dropzone:hover { border-color: var(--accent-emerald); background: rgba(16, 185, 129, 0.03); }

.file-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.file-thumb {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px;
  text-align: center;
  font-size: 0.78rem;
  word-break: break-all;
}

.exchange-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  margin: 18px 0;
}

.exchange-card {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

.exchange-card:hover, .exchange-card.selected {
  border-color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.08);
}

.exchange-logo { font-weight: 800; font-size: 1.05rem; color: #fff; margin-bottom: 2px; }

/* Status Completed Card */
.status-completed-card {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-lg);
  padding: 32px 20px;
  text-align: center;
}

.check-circle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent-emerald);
  color: #040711;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-weight: 800;
  margin: 0 auto 16px;
}

/* Blog Cards */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.blog-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.blog-card:hover { transform: translateY(-3px); border-color: var(--border-hover); }

.blog-img-box {
  height: 140px;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border-color);
  color: var(--accent-emerald);
}

.blog-body { padding: 20px; }
.blog-tag { font-size: 0.72rem; font-weight: 700; color: var(--accent-emerald); text-transform: uppercase; margin-bottom: 6px; }
.blog-body h3 { font-size: 1.02rem; margin-bottom: 8px; }
.blog-body p { font-size: 0.85rem; color: var(--text-body); line-height: 1.55; }

/* FAQ Accordion */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }

.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 18px 20px;
  background: none;
  border: none;
  color: var(--text-heading);
  font-size: 0.98rem;
  font-weight: 600;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.faq-answer {
  display: none;
  padding: 0 20px 18px;
  color: var(--text-body);
  font-size: 0.9rem;
  line-height: 1.65;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.faq-item.active .faq-answer { display: block; }
.faq-item.active .faq-icon { transform: rotate(180deg); color: var(--accent-emerald); }

/* Footer */
.site-footer {
  background: #050811;
  border-top: 1px solid var(--border-color);
  padding: 60px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 36px;
  margin-bottom: 40px;
}

.footer-info p { color: var(--text-body); font-size: 0.88rem; margin-top: 12px; max-width: 300px; }
.footer-col h4 { font-size: 0.92rem; margin-bottom: 16px; color: var(--text-heading); }

.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: var(--text-body); font-size: 0.88rem; }
.footer-links a:hover { color: var(--accent-emerald); }

.disclaimer-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  padding: 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 30px;
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-bottom {
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Keyframes */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   MOBILE & RESPONSIVE BREAKPOINTS (FIXED MOBILE HEADER)
   ========================================================================== */
@media (max-width: 992px) {
  .desktop-only-btn {
    display: none !important;
  }
  
  .mobile-toggle {
    display: flex !important;
  }

  .logo-subtitle {
    display: none;
  }

  .nav-menu {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: #090d16;
    flex-direction: column;
    padding: 24px 20px;
    gap: 18px;
    border-bottom: 1px solid var(--border-color);
    display: none;
    box-shadow: 0 20px 40px rgba(0,0,0,0.85);
    z-index: 999;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
  }

  .nav-menu.open {
    display: flex !important;
  }

  .mobile-cta-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
    margin-top: 10px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
  }

  .hero-grid, .lessons-wrapper, .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }
  
  .hero-section {
    padding: 100px 0 35px;
  }

  .section-padding {
    padding: 28px 0 !important;
  }

  .section-header {
    margin-bottom: 20px !important;
  }
  
  .glass-card, .stage-box, .simulator-box {
    padding: 18px 14px;
    border-radius: var(--radius-md);
  }

  .sim-input-group {
    flex-direction: column;
  }
  
  .sim-input-group .btn {
    width: 100%;
  }

  .stepper-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  
  .stepper-wrapper::before {
    display: none;
  }
  
  .step-item {
    background: var(--bg-surface);
    padding: 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
  }

  .exchange-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  
  .exchange-card {
    padding: 12px 8px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .footer-info {
    grid-column: 1 / -1;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}