/* ============================================================
   BASE STYLESHEET
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-20);
}

body {
  min-height: 100dvh;
  line-height: 1.65;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition-slow), color var(--transition-slow);
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
ul[role="list"], ol[role="list"] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  text-wrap: balance;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

p, li, figcaption { text-wrap: pretty; max-width: 72ch; }

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
a:hover { color: var(--color-primary-hover); }

::selection {
  background: oklch(from var(--color-primary) l c h / 0.2);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

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

button { cursor: pointer; background: none; border: none; }
table { border-collapse: collapse; width: 100%; }

a, button, [role="button"], input, textarea, select {
  transition: color var(--transition-interactive),
              background var(--transition-interactive),
              border-color var(--transition-interactive),
              box-shadow var(--transition-interactive),
              opacity var(--transition-interactive);
}

.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;
}

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.container {
  width: min(var(--content-wide), 100% - var(--space-8));
  margin-inline: auto;
}
.container--narrow {
  width: min(var(--content-narrow), 100% - var(--space-8));
  margin-inline: auto;
}
.container--default {
  width: min(var(--content-default), 100% - var(--space-8));
  margin-inline: auto;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.75rem 1.5rem;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: all var(--transition-interactive);
  letter-spacing: 0.01em;
}

.btn--primary {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 0 20px oklch(from var(--color-primary) l c h / 0.35);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 0 30px oklch(from var(--color-primary) l c h / 0.45);
  color: white;
}

.btn--secondary {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}
.btn--secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-highlight);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
  padding: 0.5rem 1rem;
}
.btn--ghost:hover { color: var(--color-text); }

.btn--lg {
  padding: 1rem 2rem;
  font-size: var(--text-base);
}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: oklch(from var(--color-bg) l c h / 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition: box-shadow var(--transition-interactive),
              background var(--transition-slow);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}

.nav__logo-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav__links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.nav__links a:hover { color: var(--color-text); }

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav__theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.nav__theme-toggle:hover {
  color: var(--color-text);
  border-color: var(--color-primary);
}

/* Mobile nav */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  color: var(--color-text);
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: var(--radius-full);
  transition: all var(--transition-interactive);
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-6);
  border-top: 1px solid var(--color-divider);
  background: var(--color-bg);
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-divider);
}
.mobile-nav a:hover { color: var(--color-text); }

@media (max-width: 768px) {
  .nav__links, .nav__actions .btn { display: none; }
  .nav__hamburger { display: flex; }
  .nav__actions { gap: var(--space-2); }
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--color-divider);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: var(--space-24);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer__brand p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  max-width: 32ch;
  margin-top: var(--space-3);
  line-height: 1.7;
}

.footer__col h4 {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
  font-family: var(--font-body);
}

.footer__col ul { list-style: none; display: flex; flex-direction: column; gap: var(--space-3); }
.footer__col a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.footer__col a:hover { color: var(--color-primary); }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-divider);
}

.footer__bottom p {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  max-width: none;
}

@media (max-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
  .footer__brand { grid-column: 1 / -1; }
  .footer__bottom { flex-direction: column; gap: var(--space-4); text-align: center; }
}

@media (max-width: 480px) {
  .footer__grid { grid-template-columns: 1fr; }
}

/* ============================================================
   BADGE / TAG CHIP
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.3rem 0.8rem;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: var(--radius-full);
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  border: 1px solid oklch(from var(--color-primary) l c h / 0.2);
}

/* ============================================================
   SECTION SPACING
   ============================================================ */
.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}
.section--tight {
  padding-block: clamp(var(--space-10), 5vw, var(--space-20));
}

/* ============================================================
   CARD
   ============================================================ */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: box-shadow var(--transition-interactive), border-color var(--transition-interactive), transform var(--transition-interactive);
}
.card:hover {
  box-shadow: var(--shadow-md);
  border-color: oklch(from var(--color-primary) l c h / 0.4);
  transform: translateY(-2px);
}

/* ============================================================
   FORM ELEMENTS
   ============================================================ */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.form-group label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--text-base);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
  width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.15);
}
.form-group textarea { resize: vertical; min-height: 120px; }

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-faint);
}

.checkbox-wrap {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}
.checkbox-wrap input[type="checkbox"] {
  width: 18px;
  height: 18px;
  min-width: 18px;
  margin-top: 2px;
  accent-color: var(--color-primary);
  cursor: pointer;
}
.checkbox-wrap span {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}
.checkbox-wrap a { color: var(--color-primary); }

/* ============================================================
   GRID UTILITIES
   ============================================================ */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* ============================================================
   STAT DISPLAY
   ============================================================ */
.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.03em;
  line-height: 1;
}
.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ============================================================
   DIVIDER
   ============================================================ */
.divider {
  height: 1px;
  background: var(--color-divider);
  margin-block: var(--space-12);
}

/* ============================================================
   LEGAL / COMPLIANCE PAGES
   ============================================================ */
.legal-content {
  max-width: 720px;
  margin: 0 auto;
  padding-block: var(--space-16);
}
.legal-content h1 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-2);
}
.legal-content .last-updated {
  color: var(--color-text-faint);
  font-size: var(--text-sm);
  margin-bottom: var(--space-10);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-divider);
}
.legal-content h2 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-top: var(--space-10);
  margin-bottom: var(--space-3);
  color: var(--color-text);
  font-family: var(--font-display);
}
.legal-content p,
.legal-content li {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.75;
  max-width: 70ch;
}
.legal-content ul {
  list-style: disc;
  padding-left: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-3);
}
.legal-content p + p { margin-top: var(--space-4); }
.legal-content .sms-box {
  background: var(--color-primary-highlight);
  border: 1px solid oklch(from var(--color-primary) l c h / 0.25);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-top: var(--space-6);
}
.legal-content .sms-box p { color: var(--color-text); }