/* ==========================================================================
   Address Checker — Custom Styles
   Design System v1.0.0
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Brand Blues */
  --brand-50:   #F0F7FF;
  --brand-100:  #E0EFFE;
  --brand-500:  #2563EB;
  --brand-600:  #1D4ED8;
  --brand-700:  #1E40AF;
  --brand-dark: #0B132B;

  /* Slate Palette */
  --slate-50:  #F8FAFC;
  --slate-100: #F1F5F9;
  --slate-200: #E2E8F0;
  --slate-300: #CBD5E1;
  --slate-400: #94A3B8;
  --slate-500: #64748B;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1E293B;
  --slate-900: #0F172A;
  --slate-950: #020617;

  /* Accent System */
  --accent-green:       #10B981;
  --accent-green-light: #D1FAE5;
  --accent-amber:       #F59E0B;
  --accent-red:         #EF4444;

  /* Semantic aliases */
  --color-primary:        var(--brand-600);   /* #1D4ED8 */
  --color-primary-hover:  var(--brand-700);   /* #1E40AF */
  --color-primary-ring:   var(--brand-500);   /* #2563EB */
  --color-accent:         var(--accent-green);
  --color-bg:             var(--slate-50);
  --color-surface:        #ffffff;
  --color-text-primary:   var(--slate-900);
  --color-text-secondary: var(--slate-600);
  --color-border:         var(--slate-200);
  --color-footer-bg:      var(--slate-950);
  --color-footer-text:    var(--slate-400);

  /* Gradients */
  --gradient-hero:    linear-gradient(to right, #1D4ED8, #2563EB, #10B981);
  --gradient-logo:    linear-gradient(to top right, #1E40AF, #2563EB, #10B981);
  --gradient-cta:     linear-gradient(135deg, #1E40AF 0%, #2563EB 100%);
  --gradient-roi:     linear-gradient(to bottom right, #0F172A, #0B132B, #0F172A);

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Border Radius Hierarchy */
  --radius-badge:   9999px;   /* chips, badges */
  --radius-button:  0.75rem;  /* 12px — buttons & inputs */
  --radius-card:    1rem;     /* 16px — cards (rounded-2xl) */
  --radius-feature: 1.5rem;   /* 24px — main containers (rounded-3xl) */

  /* Shadows */
  --shadow-sm:    0 1px 3px 0 rgb(0 0 0 / 0.08), 0 1px 2px -1px rgb(0 0 0 / 0.06);
  --shadow-card:  0 20px 25px -5px rgb(0 0 0 / 0.10), 0 8px 10px -6px rgb(0 0 0 / 0.10);
  --shadow-brand: 0 0 25px -5px rgba(37, 99, 235, 0.30);
  --shadow-green: 0 0 25px -5px rgba(16, 185, 129, 0.30);

  /* Transitions */
  --transition-base: 200ms ease-in-out;
  --transition-slow: 300ms ease-in-out;
}

/* --------------------------------------------------------------------------
   2. Base Reset & Globals
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --------------------------------------------------------------------------
   3. Typography Scale
   -------------------------------------------------------------------------- */

/* Display H1 — 60px / 3.75rem, ExtraBold 800, lh 1.15, ls -0.025em */
h1 {
  font-size: clamp(2.25rem, 5.5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--color-text-primary);
}

/* H2 Section — 36px / 2.25rem, ExtraBold 800, lh 1.25, ls -0.025em */
h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.025em;
  color: var(--color-text-primary);
}

/* H3 Card — 20px / 1.25rem, Bold 700, lh 1.35 */
h3 {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-text-primary);
}

/* H4 */
h4 {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-text-primary);
}

/* Subhead — 18px / 1.125rem, Regular 400, lh 1.625 */
p {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

code, pre, .font-mono {
  font-family: var(--font-mono);
}

/* --------------------------------------------------------------------------
   4. Navigation
   -------------------------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  /* Glass card — light */
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.nav-logo-icon {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 0.75rem;
  background: var(--gradient-logo);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
  transition: transform var(--transition-base);
}

.nav-logo:hover .nav-logo-icon {
  transform: scale(1.05);
}

.nav-logo-icon svg {
  width: 22px;
  height: 22px;
  stroke: #fff;
}

/* Green check ticks that pop in on hover (bottom-right corner) */
.check {
  position: absolute;
  width: 24px;
  height: 24px;
  opacity: 0;
  transform: scale(0) translateY(4px);
  transition: opacity 240ms ease, transform 240ms cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
  filter: drop-shadow(0 1px 2px rgba(255, 255, 255, 1));
}

.check svg {
  display: block;
  width: 100%;
  height: 100%;
}

/* The envelope svg (22px) is centred in the 40px badge, so its
   bottom-right corner sits ~9px inside each edge. Anchor the ticks there,
   overlapping: the left one shows first, the second stacks on top of it. */
.check--1 {
  bottom: -2px;
  right: -2px;
  z-index: 1;
}

.check--2 {
  bottom: -2px;
  right: -8px;
  z-index: 2;
}

.nav-logo:hover .check {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.nav-logo:hover .check--1 {
  transition-delay: 60ms;
}

.nav-logo:hover .check--2 {
  transition-delay: 170ms;
}

@media (prefers-reduced-motion: reduce) {
  .check {
    transition: opacity 240ms ease;
    transform: none;
  }
  .nav-logo:hover .check {
    transform: none;
  }
}

.nav-logo-brand {
  display: flex;
  flex-direction: column;
}

.nav-logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--color-text-primary);
  line-height: 1;
}

.nav-logo-accent {
  color: var(--brand-600);
}

.nav-logo-sub {
  font-size: 0.685rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate-400);
  margin-top: 2px;
  position: relative;
}

/* Nav links */
.nav a.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--slate-600);
  text-decoration: none;
  transition: color var(--transition-base);
}

.nav a.nav-link:hover {
  color: var(--brand-500);
}

/* Language toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: transparent;
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius-button);
  padding: 0.375rem 0.875rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--slate-600);
  cursor: pointer;
  transition: border-color var(--transition-base), color var(--transition-base);
}

.lang-toggle:hover {
  border-color: var(--brand-500);
  color: var(--brand-500);
}

/* --------------------------------------------------------------------------
   5. Section Containers
   -------------------------------------------------------------------------- */
.section {
  padding: 5rem 1.5rem;
}

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

/* Caption / Label — 12px, SemiBold/Bold 700, ls +0.05em, uppercase */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--brand-500);
  margin-bottom: 0.75rem;
}

.section-title {
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.625;
  max-width: 600px;
  margin: 0 auto 3rem;
  color: var(--slate-600);
}

/* --------------------------------------------------------------------------
   6. Hero
   -------------------------------------------------------------------------- */
.hero {
  background: linear-gradient(to bottom, var(--slate-50), rgba(219, 234, 254, 0.4), var(--slate-50));
  padding: 5rem 1.5rem 7rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* Ambient glow blob */
.hero-bg-glow {
  position: absolute;
  top: 25%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: rgba(37, 99, 235, 0.08);
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.hero h1 {
  color: var(--slate-900);
  margin-bottom: 1.25rem;
}

/* Hero badge with animated pulse dot */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem;
  border-radius: var(--radius-badge);
  background: var(--brand-50);
  border: 1px solid var(--brand-100);
  color: var(--brand-700);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.hero-badge-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(0.85); }
}

/* Subhead */
.hero p {
  color: var(--slate-600);
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.625;
  max-width: 560px;
  margin: 0 auto 2.5rem;
}

/* --------------------------------------------------------------------------
   7. Cards (Glassmorphism — Light)
   -------------------------------------------------------------------------- */
.card {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: var(--radius-card);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-card), var(--shadow-brand);
  transform: translateY(-3px);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 0.75rem; /* rounded-xl */
  background: var(--brand-50);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.card-icon svg {
  width: 24px;
  height: 24px;
  color: var(--brand-500);
}

/* H3 inside cards */
.card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--slate-900);
  margin-bottom: 0.5rem;
}

.card p {
  font-size: 0.9375rem;
  color: var(--slate-600);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   8. Buttons (Button System)
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-button);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: background-color var(--transition-base),
              box-shadow var(--transition-base),
              transform var(--transition-base);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* Primary — Brand-600, white text, Brand Glow on hover */
.btn-primary {
  background: var(--brand-600);
  color: #ffffff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--brand-700);
  box-shadow: var(--shadow-brand);
  transform: scale(1.02);
}

/* Secondary Dark — Slate-900, white text */
.btn-dark {
  background: var(--slate-900);
  color: #ffffff;
}

.btn-dark:hover:not(:disabled) {
  background: var(--brand-600);
  box-shadow: var(--shadow-sm);
}

/* Accent / Success — Emerald-500 */
.btn-accent {
  background: var(--accent-green);
  color: var(--slate-950);
}

.btn-accent:hover:not(:disabled) {
  background: #059669; /* emerald-600 */
  box-shadow: var(--shadow-green);
  transform: scale(1.02);
}

/* Preset / Filter chips — Slate-100 */
.btn-filter {
  background: var(--slate-100);
  color: var(--slate-700);
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  border-radius: var(--radius-badge);
}

.btn-filter:hover:not(:disabled) {
  background: var(--slate-200);
}

/* White (on dark/gradient backgrounds) */
.btn-white {
  background: #ffffff;
  color: var(--brand-600);
}

.btn-white:hover:not(:disabled) {
  background: var(--brand-50);
  box-shadow: var(--shadow-sm);
  transform: scale(1.02);
}

/* Outline */
.btn-outline {
  background: transparent;
  color: var(--brand-600);
  border: 2px solid var(--brand-600);
}

.btn-outline:hover:not(:disabled) {
  background: var(--brand-600);
  color: #fff;
}

/* --------------------------------------------------------------------------
   9. Form Inputs
   -------------------------------------------------------------------------- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

/* Caption/Label — 12px SemiBold, ls +0.05em */
.form-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--slate-300);
}

/* Height 56px, padding-left 44px with icon slot, border-radius 12px */
.form-input,
.form-textarea {
  height: 56px;
  background: var(--slate-800);
  border: 1px solid var(--slate-700);
  border-radius: var(--radius-button); /* 12px */
  padding: 0 1rem;
  font-size: 1rem;
  font-family: var(--font-sans);
  color: var(--slate-100);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  width: 100%;
}

.form-textarea {
  height: auto;
  min-height: 120px;
  padding: 0.875rem 1rem;
  resize: vertical;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--slate-500);
}

/* Focus state — ring-2 ring-brand-500 */
.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--brand-500);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
}

.form-input.error,
.form-textarea.error {
  border-color: var(--accent-red);
}

.form-error {
  font-size: 0.8125rem;
  font-weight: 500;
  color: #f87171; /* red-400 */
  display: none;
}

.form-error.visible {
  display: block;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

/* Form success / error banners */
.form-feedback {
  display: none;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-card);
  font-size: 0.9375rem;
  font-weight: 500;
}

.form-feedback.success {
  background: #064e3b;
  color: #6ee7b7;
  border: 1px solid #065f46;
}

.form-feedback.error-banner {
  background: #450a0a;
  color: #fca5a5;
  border: 1px solid #7f1d1d;
}

.form-feedback.visible {
  display: block;
}

/* --------------------------------------------------------------------------
   10. How It Works Steps
   -------------------------------------------------------------------------- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  counter-reset: steps;
}

.step-card {
  position: relative;
  padding: 2rem;
  /* Glass card — light */
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  counter-increment: steps;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.step-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card), var(--shadow-brand);
}

.step-card::before {
  content: counter(steps);
  position: absolute;
  top: -1rem;
  left: 1.5rem;
  width: 2.25rem;
  height: 2.25rem;
  background: var(--brand-600);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-brand);
}

.step-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--slate-900);
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

.step-card p {
  font-size: 0.9375rem;
  color: var(--slate-600);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   11. Use Cases
   -------------------------------------------------------------------------- */
.use-case-card {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-left: 4px solid var(--accent-green);
  border-radius: var(--radius-card);
  padding: 1.75rem 2rem;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.use-case-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card), var(--shadow-green);
}

.use-case-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--slate-900);
  margin-bottom: 0.5rem;
}

.use-case-card p {
  font-size: 0.9375rem;
  color: var(--slate-600);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   12. CTA Banner
   -------------------------------------------------------------------------- */
.cta-banner {
  background: linear-gradient(135deg, var(--slate-900) 0%, var(--brand-dark) 50%, var(--slate-900) 100%);
  padding: 5rem 1.5rem;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 80% at 50% 50%, rgba(16, 185, 129, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.cta-banner h2 {
  color: #fff;
  margin-bottom: 1rem;
}

.cta-banner p {
  color: var(--brand-100);
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.625;
  margin-bottom: 2rem;
}

/* --------------------------------------------------------------------------
   13. Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--slate-950);
  color: var(--color-footer-text);
  padding: 4rem 1.5rem 2rem;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr 2fr;
  }
}

.footer-logo-text {
  font-size: 1rem;
  font-weight: 700;
  /* Logo gradient per manual */
  background: var(--gradient-logo);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
  display: inline-block;
}

/* Footer headings — Caption style */
.footer h4 {
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.footer p {
  color: var(--slate-400);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.footer a {
  color: var(--slate-400);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: color var(--transition-base);
  display: block;
  margin-bottom: 0.5rem;
}

.footer a:hover {
  color: #fff;
}

.footer-divider {
  border: none;
  border-top: 1px solid var(--slate-800);
  margin-bottom: 1.5rem;
}

.footer-tagline {
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-top: 0.5rem;
  color: var(--slate-400);
}

.footer-email {
  margin-top: 1.5rem;
  font-size: 0.8125rem;
}

/* --------------------------------------------------------------------------
   14. Spinner inside button
   -------------------------------------------------------------------------- */
.btn-spinner {
  display: none;
  width: 1rem;
  height: 1rem;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

.btn.loading .btn-spinner { display: inline-block; }
.btn.loading .btn-label   { display: none; }

/* --------------------------------------------------------------------------
   15. Turnstile widget wrapper
   -------------------------------------------------------------------------- */
.turnstile-wrapper {
  display: flex;
  justify-content: flex-start;
}

/* --------------------------------------------------------------------------
   16. Utilities
   -------------------------------------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Badge / Micro tag */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-badge);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge-brand {
  background: var(--brand-50);
  color: var(--brand-600);
}

.badge-success {
  background: var(--accent-green-light);
  color: #065f46;
}

/* Grids */
.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}

.text-center { text-align: center; }
.mt-2  { margin-top: 0.5rem; }
.mt-4  { margin-top: 1rem; }
.mt-8  { margin-top: 2rem; }
.mb-2  { margin-bottom: 0.5rem; }
.mb-4  { margin-bottom: 1rem; }
.mb-8  { margin-bottom: 2rem; }

/* --------------------------------------------------------------------------
   17. Glassmorphism utilities
   -------------------------------------------------------------------------- */
.glass-card {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.dark-glass {
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* --------------------------------------------------------------------------
   18. Section variants
   -------------------------------------------------------------------------- */
.section-white {
  background: #ffffff;
  border-top: 1px solid var(--slate-200);
  border-bottom: 1px solid var(--slate-200);
}

/* --------------------------------------------------------------------------
   19. Footer status pill
   -------------------------------------------------------------------------- */
.footer-bottom {
  text-align: center;
  font-size: 0.875rem;
  color: var(--slate-500);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.875rem;
  border-radius: var(--radius-badge);
  background: var(--slate-900);
  border: 1px solid var(--slate-800);
  font-size: 0.75rem;
  color: var(--slate-300);
}

.footer-status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   20. Custom scrollbar
   -------------------------------------------------------------------------- */
.custom-scrollbar::-webkit-scrollbar       { width: 6px; height: 6px; }
.custom-scrollbar::-webkit-scrollbar-track { background: var(--slate-900); }
.custom-scrollbar::-webkit-scrollbar-thumb { background: var(--slate-700); border-radius: 4px; }