/* ============================================================
   main.css — Design tokens, reset, layout, nav, buttons
   Sexwork.fyi
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* --- Design Tokens --- */
:root {
  /* Backgrounds */
  --bg: #0d0d0f;
  --bg-elevated: #17171a;
  --bg-surface: #1e1e23;
  --bg-hover: #24242a;

  /* Borders */
  --border: rgba(255,255,255,0.07);
  --border-strong: rgba(255,255,255,0.13);

  /* Accents */
  --accent-pink: #ff2d78;
  --accent-pink-dim: rgba(255,45,120,0.12);
  --accent-pink-glow: rgba(255,45,120,0.25);
  --accent-purple: #9b5de5;
  --accent-purple-dim: rgba(155,93,229,0.12);

  /* Semantic */
  --good: #22c55e;
  --good-dim: rgba(34,197,94,0.12);
  --warn: #f59e0b;
  --warn-dim: rgba(245,158,11,0.12);
  --bad: #ef4444;
  --bad-dim: rgba(239,68,68,0.12);
  --neutral: #6b7280;
  --neutral-dim: rgba(107,114,128,0.12);

  /* Typography */
  --text: #f0f0f2;
  --text-dim: #9ca3af;
  --text-muted: #6b7280;
  --font: 'Inter', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;

  /* Radius */
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
  --shadow: 0 4px 12px rgba(0,0,0,0.5);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.6);
  --shadow-pink: 0 0 24px rgba(255,45,120,0.15);

  /* Transitions */
  --transition: 150ms ease;
  --transition-md: 250ms ease;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 64px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--accent-pink); text-decoration: none; }
a:hover { text-decoration: underline; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; }

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-16) 0;
}

.section--sm {
  padding: var(--space-10) 0;
}

/* --- Navigation --- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(13,13,15,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 800;
  font-size: 18px;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.nav__logo-accent {
  color: var(--accent-pink);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav__link {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dim);
  transition: color var(--transition), background var(--transition);
  text-decoration: none;
}

.nav__link:hover {
  color: var(--text);
  background: var(--bg-hover);
  text-decoration: none;
}

.nav__link--active {
  color: var(--text);
  background: var(--bg-surface);
}

.nav__cta {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  background: var(--accent-pink);
  color: #fff;
  transition: opacity var(--transition), transform var(--transition);
  text-decoration: none;
}

.nav__cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  text-decoration: none;
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.nav__hamburger:hover { background: var(--bg-hover); }

.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition-md), opacity var(--transition-md);
}

.nav__hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.is-open span:nth-child(2) { opacity: 0; }
.nav__hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: var(--space-6);
  overflow-y: auto;
  z-index: 99;
  flex-direction: column;
  gap: var(--space-2);
}

.nav__mobile.is-open { display: flex; }

.nav__mobile-link {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 500;
  color: var(--text-dim);
  transition: color var(--transition), background var(--transition);
  text-decoration: none;
  border-left: 2px solid transparent;
}

.nav__mobile-link:hover {
  color: var(--text);
  background: var(--bg-elevated);
  border-left-color: var(--accent-pink);
  text-decoration: none;
}

.nav__mobile-divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-2) 0;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: 15px;
  font-weight: 600;
  transition: all var(--transition);
  text-decoration: none;
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn:hover { text-decoration: none; }

.btn--primary {
  background: var(--accent-pink);
  color: #fff;
  box-shadow: 0 2px 12px rgba(255,45,120,0.3);
}

.btn--primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(255,45,120,0.4);
}

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

.btn--secondary:hover {
  background: var(--bg-surface);
  border-color: var(--accent-pink);
  color: var(--accent-pink);
}

.btn--ghost {
  color: var(--text-dim);
  padding: var(--space-2) var(--space-4);
}

.btn--ghost:hover {
  color: var(--text);
  background: var(--bg-elevated);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: 13px;
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: 17px;
}

/* --- Typography helpers --- */
.text-pink { color: var(--accent-pink); }
.text-purple { color: var(--accent-purple); }
.text-dim { color: var(--text-dim); }
.text-muted { color: var(--text-muted); }
.text-good { color: var(--good); }
.text-warn { color: var(--warn); }
.text-bad { color: var(--bad); }

.font-mono { font-family: 'Courier New', Courier, monospace; }
.text-sm { font-size: 13px; }
.text-base { font-size: 15px; }
.text-lg { font-size: 17px; }
.text-xl { font-size: 20px; }
.text-2xl { font-size: 24px; }
.text-3xl { font-size: 30px; }
.text-4xl { font-size: 38px; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }

/* --- Utility --- */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

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

/* --- Divider --- */
.divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-8) 0;
}

/* --- Section Headers --- */
.section-header {
  margin-bottom: var(--space-10);
}

.section-header__label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent-pink);
  margin-bottom: var(--space-3);
}

.section-header__title {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: var(--space-3);
}

.section-header__subtitle {
  font-size: 16px;
  color: var(--text-dim);
  max-width: 560px;
}

/* --- Footer --- */
.footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  padding: var(--space-10) 0;
  margin-top: var(--space-16);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-8);
}

.footer__brand {
  grid-column: span 1;
}

.footer__logo {
  font-weight: 800;
  font-size: 18px;
  margin-bottom: var(--space-3);
  letter-spacing: -0.5px;
}

.footer__tagline {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 260px;
}

.footer__heading {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__link {
  font-size: 14px;
  color: var(--text-dim);
  text-decoration: none;
  transition: color var(--transition);
}

.footer__link:hover {
  color: var(--accent-pink);
  text-decoration: none;
}

.footer__bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer__copy {
  font-size: 13px;
  color: var(--text-muted);
}

.footer__disclaimer {
  font-size: 12px;
  color: var(--text-muted);
  max-width: 600px;
  line-height: 1.5;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav__links,
  .nav__cta {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .container {
    padding: 0 var(--space-4);
  }

  .footer__inner {
    grid-template-columns: 1fr;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}