/* SafeVault - Professional Dark Theme with Cyan Accents */
/* Secure Password Sharing Service */
:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-tertiary: #1a2234;
  --bg-card: #151d2e;
  --bg-card-hover: #1c2640;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-primary: #06b6d4;
  --accent-secondary: #0ea5e9;
  --accent-glow: rgba(6, 182, 212, 0.4);
  --accent-gradient: linear-gradient(135deg, #06b6d4 0%, #0ea5e9 100%);
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --warning: #f59e0b;
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.1);
  --border-color: #2d3a52;
  --border-light: #374463;
  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  --container-max: 1200px;
  --section-padding: 6rem;
  --border-radius: 12px;
  --border-radius-lg: 16px;
  --border-radius-sm: 8px;
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px var(--accent-glow);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-display);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-primary);
  color: var(--bg-primary);
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  text-decoration: none;
  z-index: 10000;
  transition: top 0.2s ease;
}

.skip-link:focus { top: 1rem; outline: 2px solid var(--text-primary); outline-offset: 2px; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* Background Effects */
.bg-grid {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background-image: linear-gradient(rgba(6, 182, 212, 0.03) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(6, 182, 212, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none; z-index: -2;
}

.bg-glow {
  position: fixed; border-radius: 50%; filter: blur(120px); opacity: 0.4;
  pointer-events: none; z-index: -1;
}

.bg-glow-1 {
  top: -20%; right: -10%; width: 600px; height: 600px;
  background: radial-gradient(circle, var(--accent-primary) 0%, transparent 70%);
  animation: float 20s ease-in-out infinite;
}

.bg-glow-2 {
  bottom: -20%; left: -10%; width: 500px; height: 500px;
  background: radial-gradient(circle, var(--accent-secondary) 0%, transparent 70%);
  animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(20px, -30px) scale(1.05); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(30px, 10px) scale(1.02); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.container { max-width: var(--container-max); margin: 0 auto; padding: 0 2rem; }

/* Header */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(10, 14, 23, 0.8); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
}

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 2rem;
}

.logo { display: flex; align-items: center; gap: 0.75rem; text-decoration: none; color: inherit; }
.logo-icon { width: 40px; height: 40px; color: var(--accent-primary); }
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-name { font-weight: 700; font-size: 1.25rem; letter-spacing: -0.02em; }
.logo-version { font-size: 0.75rem; color: var(--text-muted); font-family: var(--font-mono); }

.nav { display: flex; align-items: center; gap: 0.5rem; }

.nav-link {
  padding: 0.5rem 1rem; color: var(--text-secondary); text-decoration: none;
  font-size: 0.9rem; font-weight: 500; border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover { color: var(--text-primary); background: var(--bg-tertiary); }
.nav-link.active { color: var(--accent-primary); background: rgba(6, 182, 212, 0.1); }

.header-actions { display: flex; align-items: center; gap: 1rem; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.625rem 1.25rem; font-family: inherit; font-size: 0.9rem; font-weight: 600;
  text-decoration: none; border: none; border-radius: var(--border-radius-sm);
  cursor: pointer; transition: all var(--transition-fast); white-space: nowrap;
}

.btn-primary {
  background: var(--accent-gradient); color: var(--bg-primary);
  box-shadow: var(--shadow-sm), 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md), 0 0 30px var(--accent-glow);
}

.btn-secondary {
  background: var(--bg-tertiary); color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover { background: var(--bg-card-hover); border-color: var(--border-light); }

.btn-ghost { background: transparent; color: var(--text-secondary); padding: 0.5rem 0.75rem; }
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-tertiary); }

.btn-lg { padding: 0.875rem 1.75rem; font-size: 1rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

.btn:focus { outline: 2px solid var(--accent-primary); outline-offset: 2px; }
.btn:focus:not(:focus-visible) { outline: none; }
.btn:focus-visible { outline: 2px solid var(--accent-primary); outline-offset: 2px; }

/* Hero Section */
.hero { padding: calc(72px + 4rem) 0 4rem; min-height: 100vh; display: flex; align-items: center; }
.hero .container { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.hero-content { max-width: 600px; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 1rem; background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.3); border-radius: 100px;
  color: var(--accent-primary); font-size: 0.85rem; font-weight: 500;
  margin-bottom: 1.5rem; animation: fadeInUp 0.6s ease;
}

.hero-badge svg { width: 16px; height: 16px; }

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 700; line-height: 1.1;
  margin-bottom: 1.5rem; letter-spacing: -0.03em; animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-title-line { display: block; }

.hero-title-gradient {
  background: var(--accent-gradient); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}

.hero-description {
  font-size: 1.15rem; color: var(--text-secondary); line-height: 1.7;
  margin-bottom: 2rem; animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-description strong { color: var(--text-primary); }

.hero-stats { display: flex; gap: 2.5rem; margin-bottom: 2.5rem; animation: fadeInUp 0.6s ease 0.3s both; }
.stat { display: flex; flex-direction: column; }
.stat-value { font-size: 2rem; font-weight: 700; color: var(--accent-primary); font-family: var(--font-mono); }
.stat-label { font-size: 0.85rem; color: var(--text-muted); }
.hero-cta { display: flex; gap: 1rem; animation: fadeInUp 0.6s ease 0.4s both; }
.hero-visual { animation: fadeInUp 0.8s ease 0.3s both; }

/* Terminal Preview */
.terminal {
  background: var(--bg-secondary); border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color); overflow: hidden; box-shadow: var(--shadow-lg);
}

.terminal-header {
  display: flex; align-items: center; gap: 1rem; padding: 0.875rem 1.25rem;
  background: var(--bg-tertiary); border-bottom: 1px solid var(--border-color);
}

.terminal-dots { display: flex; gap: 0.5rem; }
.terminal-dots span { width: 12px; height: 12px; border-radius: 50%; }
.terminal-dots span:nth-child(1) { background: #ef4444; }
.terminal-dots span:nth-child(2) { background: #f59e0b; }
.terminal-dots span:nth-child(3) { background: #10b981; }
.terminal-title { font-size: 0.8rem; color: var(--text-muted); font-family: var(--font-mono); }
.terminal-body { padding: 1.5rem; }
.terminal-body pre { font-family: var(--font-mono); font-size: 0.85rem; line-height: 1.8; white-space: pre-wrap; }
.code-comment { color: var(--text-muted); }
.code-key { color: var(--accent-primary); }
.code-value { color: var(--success); }

/* Sections */
.features-section, .how-it-works { padding: var(--section-padding) 0; }
.section-header { text-align: center; margin-bottom: 3rem; }
.section-title { font-size: 2.25rem; font-weight: 700; margin-bottom: 1rem; }
.section-description { color: var(--text-secondary); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

.features-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg); padding: 1.75rem;
  transition: all var(--transition-base);
}

.feature-card:hover { transform: translateY(-4px); border-color: var(--accent-primary); box-shadow: var(--shadow-glow); }
.feature-icon { width: 48px; height: 48px; color: var(--accent-primary); margin-bottom: 1rem; }
.feature-icon svg { width: 100%; height: 100%; }
.feature-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.feature-card p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; }

.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; max-width: 800px; margin: 0 auto; }

.step {
  text-align: center; padding: 2rem 1.5rem;
  background: var(--bg-card); border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
}

.step-number {
  width: 56px; height: 56px; background: var(--accent-gradient);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; font-weight: 700; color: var(--bg-primary); margin: 0 auto 1rem;
}

.step h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.step p { color: var(--text-secondary); font-size: 0.9rem; }

/* Page Card (for sub-pages) */
.page-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg); padding: 2.5rem; max-width: 540px; margin: 0 auto;
}

.card-header { text-align: center; margin-bottom: 2rem; }
.card-header h1 { font-size: 1.75rem; margin-bottom: 0.5rem; }
.card-header p { color: var(--text-secondary); }

/* Form Elements */
.form-group { margin-bottom: 1.5rem; }
.form-label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 0.5rem; color: var(--text-primary); }

.form-input, .form-textarea {
  width: 100%; padding: 0.875rem 1rem; font-family: var(--font-mono); font-size: 1rem;
  background: var(--bg-secondary); border: 2px solid var(--border-color);
  border-radius: var(--border-radius); color: var(--text-primary);
  transition: all var(--transition-fast);
}

.form-textarea {
  resize: vertical; min-height: 80px; max-height: 200px; line-height: 1.5;
}

.form-input:focus, .form-textarea:focus { outline: none; border-color: var(--accent-primary); box-shadow: 0 0 0 3px var(--accent-glow); }
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-muted); }
.form-hint { font-size: 0.85rem; color: var(--text-muted); margin-top: 0.5rem; }

.form-select {
  width: 100%; padding: 0.875rem 1rem; font-family: var(--font-display); font-size: 0.95rem;
  background: var(--bg-secondary); border: 2px solid var(--border-color);
  border-radius: var(--border-radius); color: var(--text-primary);
  transition: all var(--transition-fast); cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
}

.form-select:focus { outline: none; border-color: var(--accent-primary); box-shadow: 0 0 0 3px var(--accent-glow); }

.form-row { display: flex; gap: 1rem; }
.form-row .form-group { flex: 1; }

/* Password Strength Indicator */
.strength-bar {
  height: 4px; background: var(--bg-tertiary); border-radius: 2px; margin-top: 0.5rem; overflow: hidden;
}
.strength-fill { height: 100%; border-radius: 2px; transition: width 0.3s ease, background 0.3s ease; width: 0; }
.strength-label { font-size: 0.8rem; margin-top: 0.25rem; color: var(--text-muted); }

/* Radio Options */
.radio-group { display: flex; flex-direction: column; gap: 0.75rem; }

.radio-option {
  background: var(--bg-secondary); border: 2px solid var(--border-color);
  border-radius: var(--border-radius); padding: 1rem 1.25rem;
  cursor: pointer; transition: all var(--transition-fast);
}

.radio-option:hover { border-color: var(--border-light); }
.radio-option.selected { border-color: var(--accent-primary); background: rgba(6, 182, 212, 0.05); }

.radio-label { display: flex; align-items: flex-start; gap: 0.75rem; cursor: pointer; }
.radio-label input { width: 20px; height: 20px; margin-top: 2px; accent-color: var(--accent-primary); cursor: pointer; }
.radio-text strong { display: block; margin-bottom: 0.15rem; color: var(--text-primary); }
.radio-text span { font-size: 0.85rem; color: var(--text-muted); }

/* Section Box */
.section-box {
  background: rgba(6, 182, 212, 0.03); border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: var(--border-radius); padding: 1.25rem; margin-bottom: 1.5rem;
}

.section-box .form-label {
  margin-bottom: 1rem; color: var(--accent-primary); font-weight: 600;
  font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.5px;
}

.section-box .radio-group { margin-bottom: 0; }
.section-box .form-group { margin-bottom: 0; }
.section-box .captcha-box { margin-bottom: 0; }
.section-box .form-input { margin-top: 0.75rem; }

/* Custom expiry fields */
.custom-expiry-row {
  display: flex; gap: 0.75rem; margin-top: 0.75rem;
}
.custom-expiry-row .form-input { flex: 1; }
.custom-expiry-row .form-select { flex: 1; }

.custom-uses-row {
  display: flex; align-items: center; gap: 0.75rem; margin-top: 0.75rem;
}
.custom-uses-row .form-input { flex: 1; max-width: 120px; }
.custom-uses-row .uses-label { font-size: 0.9rem; color: var(--text-secondary); }

/* Alerts */
.alert {
  padding: 1rem 1.25rem; border-radius: var(--border-radius);
  display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1.5rem; font-size: 0.95rem;
}

.alert-error { background: var(--danger-bg); border: 1px solid var(--danger); color: var(--danger); }
.alert-success { background: var(--success-bg); border: 1px solid var(--success); color: var(--success); }
.alert-info { background: rgba(6, 182, 212, 0.1); border: 1px solid var(--accent-primary); color: var(--accent-primary); }
.alert-warning { background: rgba(245, 158, 11, 0.1); border: 1px solid var(--warning); color: var(--warning); }

/* Progress Bar */
.progress-container { margin-bottom: 1.5rem; }
.progress-bar-wrapper { height: 6px; background: var(--bg-secondary); border-radius: 3px; overflow: hidden; margin-top: 0.75rem; }
.progress-bar { height: 100%; background: var(--accent-gradient); border-radius: 3px; transition: width 0.3s ease; }

/* Result Display */
.result {
  margin-top: 2rem; padding: 1.5rem; background: var(--bg-secondary);
  border-radius: var(--border-radius); border: 1px solid var(--border-color);
}

.result-label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); margin-bottom: 0.5rem; }

.result-value {
  font-family: var(--font-mono); font-size: 0.9rem; background: var(--bg-tertiary);
  padding: 1rem; border-radius: var(--border-radius-sm); word-break: break-all;
  line-height: 1.6; margin-bottom: 1rem; border: 1px solid var(--border-color);
}

.result-password {
  font-family: var(--font-mono); font-size: 1.5rem; font-weight: 700;
  background: var(--accent-gradient); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
  padding: 1rem 0; text-align: center; letter-spacing: 1px;
  word-break: break-all;
}

.result-password-hidden {
  font-family: var(--font-mono); font-size: 1.5rem; font-weight: 700;
  color: var(--text-muted); padding: 1rem 0; text-align: center;
  letter-spacing: 3px;
}

.result-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.result-actions .btn { flex: 1; min-width: 120px; }
.result-meta { font-size: 0.85rem; color: var(--text-muted); margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--border-color); }

/* Spinner */
.spinner {
  width: 20px; height: 20px; border: 2px solid transparent;
  border-top-color: currentColor; border-radius: 50%; animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Footer */
.footer {
  background: var(--bg-secondary); border-top: 1px solid var(--border-color); padding: 3rem 0 2rem;
}

.footer-content {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 3rem;
  margin-bottom: 2rem; padding-bottom: 2rem; border-bottom: 1px solid var(--border-color);
}

.footer-brand .logo { margin-bottom: 0.75rem; }
.footer-tagline { color: var(--text-muted); font-size: 0.9rem; max-width: 300px; }
.footer-links { display: flex; gap: 4rem; }
.footer-col h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 1rem; color: var(--text-secondary); }

.footer-col a {
  display: block; color: var(--text-muted); text-decoration: none;
  padding: 0.25rem 0; font-size: 0.9rem; transition: color var(--transition-fast);
}

.footer-col a:hover { color: var(--accent-primary); }
.footer-bottom { text-align: center; font-size: 0.85rem; color: var(--text-muted); }
.footer-disclaimer { margin-top: 1rem; font-size: 0.8rem; max-width: 700px; margin-left: auto; margin-right: auto; }

/* Simple Footer */
.footer-simple { text-align: center; padding: 2rem 1.5rem; color: var(--text-muted); font-size: 0.85rem; }
.footer-simple a { color: var(--accent-primary); text-decoration: none; }
.footer-simple a:hover { text-decoration: underline; }

/* Utility */
.hidden { display: none !important; }

/* Human Verification (Captcha) */
.captcha-box {
  display: flex; align-items: center; gap: 0.75rem; padding: 1rem 1.25rem;
  background: var(--bg-secondary); border: 2px solid var(--border-color); border-radius: var(--border-radius);
}

.captcha-question { flex: 1; font-family: var(--font-mono); font-size: 1.1rem; font-weight: 600; color: var(--accent-primary); }

.captcha-refresh {
  display: flex; align-items: center; justify-content: center; width: 40px; height: 40px;
  background: var(--bg-tertiary); border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm); color: var(--text-secondary);
  cursor: pointer; transition: all var(--transition-fast);
}

.captcha-refresh:hover { background: var(--bg-card-hover); border-color: var(--accent-primary); color: var(--accent-primary); }
.captcha-refresh:active { transform: scale(0.95); }

/* Content pages */
.content-page { padding: calc(72px + 3rem) 0 3rem; min-height: 100vh; }
.content-page .page-card { max-width: 700px; }
.content-page h2 { font-size: 1.3rem; margin: 1.5rem 0 0.75rem; color: var(--text-primary); }
.content-page h3 { font-size: 1.1rem; margin: 1.25rem 0 0.5rem; color: var(--text-primary); }
.content-page p { color: var(--text-secondary); margin-bottom: 0.75rem; line-height: 1.7; }
.content-page ul, .content-page ol { color: var(--text-secondary); margin-bottom: 0.75rem; padding-left: 1.5rem; }
.content-page li { margin-bottom: 0.4rem; line-height: 1.6; }
.content-page code { font-family: var(--font-mono); background: var(--bg-tertiary); padding: 0.15rem 0.4rem; border-radius: 4px; font-size: 0.85em; }

/* Responsive */
@media (max-width: 1024px) {
  .hero .container { grid-template-columns: 1fr; gap: 3rem; }
  .hero-visual { max-width: 600px; margin: 0 auto; }
  .steps-grid { grid-template-columns: 1fr; max-width: 400px; }
  .footer-links { gap: 3rem; }
}

@media (max-width: 768px) {
  :root { --section-padding: 4rem; }
  .container { padding: 0 1.25rem; }
  .nav { display: none; }
  .header-actions .btn-ghost { font-size: 0.8rem; padding: 0.4rem 0.6rem; }
  .header-actions .btn-ghost svg { width: 14px; height: 14px; }
  .logo-name { font-size: 1rem; }
  .logo-icon { width: 32px; height: 32px; }
  .header-inner { gap: 0.75rem; }
  .hero { padding-top: calc(72px + 2rem); min-height: auto; }
  .hero-stats { flex-wrap: wrap; gap: 1.5rem; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; justify-content: center; }
  .page-card { padding: 2rem 1.5rem; }
  .result-actions { flex-direction: column; }
  .result-actions .btn { width: 100%; }
  .footer-content { flex-direction: column; }
  .footer-links { flex-direction: column; gap: 2rem; }
  .footer-col a { padding: 0.35rem 0; }
  .form-row { flex-direction: column; gap: 0; }
  .custom-expiry-row { flex-direction: column; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2rem; }
  .stat-value { font-size: 1.5rem; }
  .result-password { font-size: 1.2rem; }
  .logo-name { font-size: 0.85rem; }
  .logo-version { font-size: 0.65rem; }
  .logo-icon { width: 28px; height: 28px; }
  .logo { gap: 0.5rem; }
  .header-actions .btn-ghost span { display: none; }
  .header-actions .btn-ghost svg { width: 18px; height: 18px; }
  .header-actions .btn-ghost { padding: 0.5rem; }
  .footer-tagline { font-size: 0.85rem; }
  .footer-bottom { font-size: 0.8rem; }
  .footer-disclaimer { font-size: 0.75rem; }
  .captcha-question { font-size: 1rem; }
  .captcha-box { padding: 0.75rem 1rem; gap: 0.5rem; }
  .section-title { font-size: 1.5rem; }
  .content-page h2 { font-size: 1.15rem; }
}