/* ============================================================
   TERMS OF USE — terms.css
   ACE Adaptive City Ecosystems
   Covers: navbar, mobile menu, hero, layout, sidebar, content,
           footer — fully responsive + working hamburger
   ============================================================ */

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

:root {
  --lime:       #84cc16;
  --lime-dim:   #65a30d;
  --dark:       #0d1117;
  --dark2:      #111827;
  --dark3:      #1f2937;
  --border:     #1f2937;
  --text:       #e5e7eb;
  --muted:      #9ca3af;
  --white:      #ffffff;
  --nav-h:      64px;
  --radius:     12px;
  --transition: 0.25s ease;
}

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 20px); }

body {
  background: var(--dark);
  color: var(--text);
  font-family: 'Inter', 'Barlow', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: var(--lime); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--lime-dim); }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(13, 17, 23, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-wrapper {
  max-width: 1280px;
  margin: 0 auto;
  height: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 32px;
}

/* Logo */
.ace-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.ace-logo img { height: 32px; width: auto; display: block; }
.ace-logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.ace-logo-mark {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--lime);
}
.ace-logo-sub {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Desktop nav links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-menu a {
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 6px 12px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}
.nav-menu a:hover,
.nav-menu a.active {
  color: var(--white);
  background: var(--dark3);
}

/* CTA button */
.nav-btn {
  flex-shrink: 0;
  padding: 8px 20px;
  background: var(--lime);
  color: #000;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: 6px;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}
.nav-btn:hover { background: var(--lime-dim); color: #000; transform: translateY(-1px); }

/* ── BURGER ── */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  margin-left: auto;
  flex-shrink: 0;
  transition: background var(--transition);
}
.burger:hover { background: var(--dark3); }
.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease, width 0.3s ease;
  transform-origin: center;
}
/* Burger → X animation */
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── MOBILE MENU ── */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-h);
  right: 0;
  width: min(320px, 85vw);
  height: calc(100dvh - var(--nav-h));
  background: var(--dark2);
  border-left: 1px solid var(--border);
  flex-direction: column;
  padding: 24px 0;
  z-index: 999;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
}
.mobile-menu.open { transform: translateX(0); }

.mobile-menu a {
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  padding: 14px 28px;
  border-bottom: 1px solid var(--border);
  transition: color var(--transition), background var(--transition);
}
.mobile-menu a:hover,
.mobile-menu a.active {
  color: var(--lime);
  background: rgba(132, 204, 22, 0.05);
}
.mobile-menu a.mobile-cta {
  margin: 20px 28px 0;
  border: none;
  background: var(--lime);
  color: #000;
  font-weight: 700;
  text-align: center;
  border-radius: 8px;
  padding: 12px 20px;
}
.mobile-menu a.mobile-cta:hover { background: var(--lime-dim); }

/* Overlay */
.menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(2px);
  z-index: 998;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.menu-overlay.open { opacity: 1; }

/* ============================================================
   HERO
   ============================================================ */
.terms-hero {
  background: linear-gradient(135deg, #0a0f16 0%, #111827 60%, #0d1117 100%);
  border-bottom: 1px solid var(--border);
  padding: 80px 24px 72px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.terms-hero::before {
  content: '';
  position: absolute;
  top: -80px; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(132,204,22,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.terms-hero-inner { position: relative; max-width: 680px; margin: 0 auto; }

.terms-eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--lime);
  background: rgba(132,204,22,0.1);
  border: 1px solid rgba(132,204,22,0.25);
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.terms-hero h1 {
  font-size: clamp(36px, 7vw, 64px);
  font-weight: 800;
  line-height: 1.05;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.terms-hero h1 span { color: var(--lime); }

.terms-hero p {
  font-size: clamp(14px, 2vw, 17px);
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 24px;
}

.terms-hero-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
}
.meta-dot {
  width: 3px; height: 3px;
  border-radius: 50%;
  background: var(--muted);
}

/* ============================================================
   MAIN LAYOUT — sidebar + content
   ============================================================ */
.terms-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 48px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 60px 24px 100px;
  align-items: start;
}

/* ── SIDEBAR ── */
.terms-sidebar {
  position: sticky;
  top: calc(var(--nav-h) + 20px);
  background: var(--dark2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
}

.toc-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

.toc-nav { display: flex; flex-direction: column; gap: 2px; margin-bottom: 24px; }

.toc-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
  border-left: 2px solid transparent;
}
.toc-link:hover { color: var(--white); background: var(--dark3); }
.toc-link.active {
  color: var(--lime);
  background: rgba(132,204,22,0.08);
  border-left-color: var(--lime);
}

.toc-cta {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--lime);
  padding: 10px 12px;
  border: 1px solid rgba(132,204,22,0.3);
  border-radius: 8px;
  text-align: center;
  transition: background var(--transition), border-color var(--transition);
}
.toc-cta:hover {
  background: rgba(132,204,22,0.08);
  border-color: var(--lime);
  color: var(--lime);
}

/* ── CONTENT ── */
.terms-content { min-width: 0; }

.terms-section {
  padding: 48px 0;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.terms-section:last-child { border-bottom: none; }

.section-number {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--lime);
  opacity: 0.7;
  margin-bottom: 10px;
}

.terms-section h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 18px;
  line-height: 1.2;
}

.terms-section p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 14px;
}
.terms-section p:last-child { margin-bottom: 0; }

/* Highlight box */
.terms-highlight {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: rgba(132,204,22,0.06);
  border: 1px solid rgba(132,204,22,0.2);
  border-radius: 10px;
  padding: 16px 18px;
  margin-top: 20px;
}
.highlight-icon {
  flex-shrink: 0;
  color: var(--lime);
  margin-top: 2px;
}
.terms-highlight p {
  font-size: 14px;
  color: var(--text);
  margin-bottom: 0;
}
.terms-highlight p a { color: var(--lime); font-weight: 600; }
.terms-highlight p a:hover { text-decoration: underline; }

/* Contact strip */
.terms-contact-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  background: var(--dark2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-top: 28px;
}
.strip-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}
.strip-text { font-size: 13px; color: var(--muted); }
.strip-btn {
  flex-shrink: 0;
  padding: 10px 22px;
  background: var(--lime);
  color: #000;
  font-size: 13px;
  font-weight: 700;
  border-radius: 8px;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}
.strip-btn:hover { background: var(--lime-dim); color: #000; transform: translateY(-1px); }

/* ============================================================
   FOOTER
   ============================================================ */
.ace-footer {
  background: var(--dark2);
  border-top: 1px solid var(--border);
  padding: 64px 24px 32px;
}

.ace-footer-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}

.ace-footer-logo-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.ace-footer-logo-row img { height: 32px; }
.ace-footer-logo-mark {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--lime);
}
.ace-footer-logo-sub {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
}

.ace-footer-tagline {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 20px;
  max-width: 300px;
}

.ace-footer-contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.ace-footer-contact a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  transition: color var(--transition);
}
.ace-footer-contact a:hover { color: var(--lime); }

.ace-footer-col-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 16px;
}

.ace-footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.ace-footer-links a {
  font-size: 13px;
  color: var(--muted);
  transition: color var(--transition);
}
.ace-footer-links a:hover { color: var(--lime); }

.ace-footer-bottom {
  max-width: 1280px;
  margin: 28px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.ace-footer-copy { font-size: 12px; color: var(--muted); }

.ace-footer-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.ace-footer-pill {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--muted);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet: ≤ 1024px */
@media (max-width: 1024px) {
  .terms-layout {
    grid-template-columns: 200px 1fr;
    gap: 32px;
  }
  .ace-footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .ace-footer-brand { grid-column: 1 / -1; }
}

/* Phablet: ≤ 768px */
@media (max-width: 768px) {
  /* Show burger, hide desktop nav + CTA */
  .nav-menu, .nav-btn { display: none; }
  .burger { display: flex; }
  .mobile-menu { display: flex; }
  .menu-overlay { display: block; }

  /* Collapse sidebar */
  .terms-layout {
    grid-template-columns: 1fr;
    padding: 32px 16px 64px;
    gap: 0;
  }

  /* Sidebar becomes a horizontal scrollable strip */
  .terms-sidebar {
    position: static;
    border-radius: 10px;
    padding: 16px;
    margin-bottom: 32px;
    overflow-x: auto;
  }
  .toc-nav {
    flex-direction: row;
    gap: 6px;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .toc-nav::-webkit-scrollbar { display: none; }
  .toc-link {
    white-space: nowrap;
    border-left: none;
    border-bottom: 2px solid transparent;
    border-radius: 6px;
    padding: 7px 12px;
    font-size: 12px;
  }
  .toc-link.active { border-bottom-color: var(--lime); }
  .toc-cta { margin-top: 12px; }

  /* Hero */
  .terms-hero { padding: 60px 20px 52px; }

  /* Footer */
  .ace-footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .ace-footer-brand { grid-column: auto; }
  .ace-footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Phone: ≤ 480px */
@media (max-width: 480px) {
  .terms-hero h1 { font-size: 32px; }
  .terms-section h2 { font-size: 20px; }
  .terms-contact-strip { flex-direction: column; align-items: flex-start; }
  .strip-btn { width: 100%; text-align: center; }
  .terms-hero-meta { flex-direction: column; gap: 6px; }
  .meta-dot { display: none; }
  .nav-wrapper { padding: 0 16px; }
}