/* ═══════════════════════════════════════════════════════════
   NexusChat — Shared Page Stylesheet
   Used by: login, about, safety, blog + all inner pages
═══════════════════════════════════════════════════════════ */

/* ── CSS VARIABLES ─────────────────────────────────────────── */
:root {
  --sidebar-bg:         #111117;
  --sidebar-border:     rgba(255,255,255,0.06);
  --sidebar-text:       #b0b0c0;
  --sidebar-hover:      rgba(255,255,255,0.07);
  --sidebar-active:     rgba(255,190,80,0.12);
  --sidebar-active-text:#ffbe50;

  --main-bg:            #f6f5f0;
  --surface:            #ffffff;
  --surface-hover:      #fafaf7;
  --border:             #e8e6df;
  --border-subtle:      #f0ede5;

  --text-primary:       #1a1a22;
  --text-secondary:     #5a5a6e;
  --text-muted:         #9090a0;

  --accent:             #f0a030;
  --accent-dark:        #c47a10;
  --accent-glow:        rgba(240,160,48,0.25);
  --accent-subtle:      rgba(240,160,48,0.08);

  --card-radius:        14px;
  --card-shadow:        0 2px 12px rgba(0,0,0,0.06);
  --card-shadow-hover:  0 8px 32px rgba(0,0,0,0.12);

  --sidebar-w:          240px;
  --topbar-h:           64px;
  --transition:         0.22s cubic-bezier(0.4,0,0.2,1);

  --font-display:       'Sora', sans-serif;
  --font-body:          'DM Sans', sans-serif;
}

/* ── RESET ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--main-bg);
  color: var(--text-primary);
  min-height: 100vh;
}
a { text-decoration: none; color: inherit; }
button { cursor: pointer; font-family: var(--font-body); border: none; background: none; }
img { display: block; max-width: 100%; }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d0cfc8; border-radius: 3px; }

/* ════════════════════════════════════════════════════════════
   TOPNAV (used on all inner pages — no sidebar)
════════════════════════════════════════════════════════════ */
.topnav {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(246,245,240,0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  height: 64px;
  display: flex;
  align-items: center;
  padding: 0 40px;
  gap: 32px;
}

.topnav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.topnav-logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, #f0a030, #e06010);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: #fff;
}

.topnav-logo-image {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.topnav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}

.topnav-link {
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}

.topnav-link:hover  { background: rgba(0,0,0,0.04); color: var(--text-primary); }
.topnav-link.active { background: var(--accent-subtle); color: var(--accent-dark); font-weight: 700; }

.topnav-spacer { flex: 1; }

.topnav-actions { display: flex; align-items: center; gap: 8px; }

.btn-nav-outline {
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.855rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition);
}
.btn-nav-outline:hover { border-color: var(--accent); color: var(--accent-dark); background: var(--accent-subtle); }

.btn-nav-fill {
  padding: 8px 20px;
  background: var(--text-primary);
  border-radius: 8px;
  font-size: 0.855rem;
  font-weight: 700;
  color: #fff;
  transition: var(--transition);
}
.btn-nav-fill:hover { background: #2a2a36; transform: translateY(-1px); }

/* Mobile hamburger */
.topnav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  margin-left: auto;
}
.topnav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* Mobile nav drawer */
.mobile-nav-drawer {
  display: none;
  position: fixed;
  top: 64px;
  left: 0; right: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 20px;
  z-index: 199;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  max-height: calc(100vh - 64px);
  overflow-y: auto;
}
.mobile-nav-drawer.open { display: flex; }
.mobile-nav-drawer .topnav-link { padding: 12px 14px; }
.mobile-nav-drawer .topnav-actions { padding-top: 12px; border-top: 1px solid var(--border); flex-direction: column; }
.mobile-nav-drawer .btn-nav-fill, .mobile-nav-drawer .btn-nav-outline { width: 100%; text-align: center; }

/* ════════════════════════════════════════════════════════════
   PAGE HERO (reusable)
════════════════════════════════════════════════════════════ */
.page-hero {
  padding: 72px 40px 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  width: 800px; height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  top: -300px; left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
}
.page-hero-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-dark);
  background: var(--accent-subtle);
  border: 1px solid rgba(240,160,48,0.2);
  border-radius: 20px;
  padding: 5px 14px;
  margin-bottom: 20px;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}
.page-hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--accent), #e06010);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-hero p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ════════════════════════════════════════════════════════════
   CONTAINER
════════════════════════════════════════════════════════════ */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}
.container--narrow {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 40px;
}
.container--wide {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ════════════════════════════════════════════════════════════
   FOOTER
════════════════════════════════════════════════════════════ */
.site-footer {
  background: var(--text-primary);
  padding: 48px 40px 28px;
  margin-top: 80px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .topnav-logo { color: #fff; margin-bottom: 12px; }
.footer-brand p { font-size: 0.82rem; color: rgba(255,255,255,0.4); line-height: 1.6; max-width: 220px; }
.footer-col h4 {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.35);
  margin-bottom: 14px;
}
.footer-col a {
  display: block;
  font-size: 0.84rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 8px;
  transition: var(--transition);
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: 0.78rem; color: rgba(255,255,255,0.25); }
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { font-size: 0.78rem; color: rgba(255,255,255,0.3); transition: var(--transition); }
.footer-bottom-links a:hover { color: rgba(255,255,255,0.7); }

/* ════════════════════════════════════════════════════════════
   UTILITIES
════════════════════════════════════════════════════════════ */
.section-label {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-dark);
  margin-bottom: 10px;
}
.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-subtext {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 560px;
}
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 48px 0;
}

/* ── ANIMATIONS ─────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp 0.5s ease forwards; }

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── RESPONSIVE NAV ─────────────────────────────────────────── */
@media (max-width: 860px) {
  .topnav { padding: 0 20px; gap: 0; }
  .topnav-links, .topnav-actions { display: none; }
  .topnav-hamburger { display: flex; }
  .container, .container--narrow, .container--wide { padding: 0 20px; }
  .page-hero { padding: 48px 20px 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
}
@media (max-width: 720px) {
  .topnav {
    height: 60px;
    padding: 0 16px;
  }
  .mobile-nav-drawer {
    top: 60px;
    max-height: calc(100vh - 60px);
    padding: 14px 16px;
  }
  .page-hero p {
    font-size: 0.95rem;
    line-height: 1.6;
  }
  .site-footer {
    padding: 36px 20px 24px;
    margin-top: 64px;
  }
}
@media (max-width: 560px) {
  .page-hero {
    padding: 40px 16px 32px;
  }
  .container, .container--narrow, .container--wide {
    padding: 0 16px;
  }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}