/* ════════════════════════════════════════
   LAYOUT.CSS — Crystal AI Systems
   Ticker, nav, compact-nav, mobile nav, responsive media queries
════════════════════════════════════════ */

/* ── TICKER ── */
.ticker-wrap {
  background: linear-gradient(90deg, var(--violet), var(--blue), var(--violet));
  height: 36px;
  overflow: hidden;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1001;
  display: flex;
  align-items: center;
}
.ticker-track {
  display: flex;
  gap: 0;
  animation: ticker 45s linear infinite;
  white-space: nowrap;
}
.ticker-track span {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: #fff;
  padding: 0 3rem;
  opacity: 0.95;
}
@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 80px; /* 36px ticker + 44px TradingView */
  left: 0;
  right: 0;
  z-index: 1000;
  height: 66px;
  background: rgba(1, 1, 8, 0.92);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--b1);
}
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  gap: 1rem;
}
.logo {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 800;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
  letter-spacing: 1px;
}
.logo-crystal {
  background: linear-gradient(135deg, #fff, var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.logo-ai {
  background: linear-gradient(135deg, var(--purple), var(--pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-links {
  display: flex;
  gap: 0;
  list-style: none;
}
.nav-links a {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--t2);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  padding: 0.42rem 0.6rem;
  border-radius: 8px;
  white-space: nowrap;
  position: relative;
}
.nav-links a:hover {
  color: var(--t1);
  background: var(--b1);
}
.nav-links a.active-nav {
  color: var(--blue);
  background: var(--ab);
  font-weight: 800;
}
.nav-links a.active-nav::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 20%;
  right: 20%;
  height: 2px;
  border-radius: 1px;
  background: linear-gradient(90deg, var(--violet), var(--blue));
}
.nav-links a.nav-studio {
  background: linear-gradient(135deg, rgba(124,58,237,.18), rgba(0,212,255,.12));
  color: var(--blue);
  border: 1px solid rgba(0,212,255,.2);
}
.nav-links a.nav-studio:hover {
  background: linear-gradient(135deg, rgba(124,58,237,.28), rgba(0,212,255,.2));
}
.nav-ico { font-size: 0.85rem; line-height: 1; }
.nav-lbl { font-size: 0.77rem; }
/* Theme toggle button */
.theme-toggle {
  background: var(--bg3);
  border: 1px solid var(--b1);
  border-radius: 8px;
  color: var(--t2);
  font-size: 1rem;
  cursor: pointer;
  padding: 0.3rem 0.55rem;
  transition: all 0.2s;
  line-height: 1;
  flex-shrink: 0;
}
.theme-toggle:hover { background: var(--ab); color: var(--blue); border-color: var(--b2); }
.nav-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.nav-search {
  display: flex;
  align-items: center;
  background: var(--bg3);
  border: 1px solid var(--b1);
  border-radius: 8px;
  padding: 0.35rem 0.75rem;
  gap: 6px;
}
.nav-search input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--t1);
  font-family: var(--font-body);
  font-size: 0.82rem;
  width: 130px;
}
.nav-search input::placeholder { color: var(--t3); }
.nav-search span { color: var(--t3); font-size: 0.85rem; }
.hamburger {
  display: none;
  background: transparent;
  border: 1px solid var(--b1);
  color: var(--t1);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
}
.mob-nav {
  display: none;
  position: fixed;
  top: 146px;
  left: 0;
  right: 0;
  background: var(--bg2);
  border-bottom: 1px solid var(--b1);
  z-index: 999;
  flex-direction: column;
  padding: 0.5rem 1.5rem;
}
.mob-nav a {
  display: block;
  color: var(--t2);
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--b1);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
}
.mob-nav a:last-child { border-bottom: none; }

/* Admin nav button */
#navAdminBtn { align-items: center; gap: 4px; }
#navAdminBtn:hover { background: var(--ab) !important; }

/* Bold Home icon in all-tabs nav */
.nav-links li:first-child a { font-weight: 700; }

/* ── TRADINGVIEW TICKER ── */
.tv-ticker-wrap {
  background: var(--bg1);
  border-bottom: 1px solid var(--b1);
  position: fixed;
  top: 36px;
  left: 0;
  right: 0;
  z-index: 998;
  height: 44px;
  overflow: hidden;
}

/* ══════════════════════════════════
   COMPACT-NAV MODE (all non-home pages)
   - Tickers hidden → nav slides to top
   - Only Home tab visible in nav
   - Page/admin layout adjusts
══════════════════════════════════ */
body.compact-nav nav { top: 0; }
body.compact-nav .page { padding-top: 70px; }
/* sidebar is position:sticky — its top is always 70px (nav height in compact mode) */
/* Hide all nav tabs except the Home (first li) */
body.compact-nav .nav-links li { display: none; }
body.compact-nav .nav-links li:first-child { display: flex; }
body.compact-nav .nav-links li:first-child a { color: var(--blue); font-weight: 700; }
body.compact-nav .nav-links li:first-child .nav-ico { font-size: 1.1rem; }

/* ── RESPONSIVE (new) ── */
@media (max-width: 900px) {
  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar { display: none; }
  .admin-main { padding: 1rem; border-radius: var(--radius-lg); }
  .how-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .sell-form-grid, .contact-grid, .admin-2col { grid-template-columns: 1fr; }
  .feats-grid { grid-template-columns: 1fr; }
  .prod-modal-top { flex-direction: column; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 1.2rem; }
  .how-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-search { display: none; }
  .hamburger { display: block; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .form-2col { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 1.5rem; }
}

/* ── 480px and below (small phones) ── */
@media (max-width: 480px) {

  /* Nav — keep only essential buttons */
  .nav-right .btn-ghost#navAdminBtn { display: none !important; }
  .nav-right .btn-primary { padding: 0.38rem 0.75rem; font-size: 0.78rem; }
  .nav-right #navSignIn { padding: 0.38rem 0.75rem; font-size: 0.78rem; }
  .theme-toggle { width: 32px; height: 32px; font-size: 0.85rem; padding: 0; }

  /* Hero */
  .hero { padding: 3rem 1rem 2.5rem; }
  .hero-badge { font-size: 0.7rem; padding: 0.35rem 0.9rem; }
  .hero-btns { flex-direction: column; gap: 0.6rem; align-items: center; }
  .hero-btn-main, .hero-btn-sec { width: 100%; max-width: 280px; text-align: center; padding: 0.75rem 1rem; }

  /* Hero stats — 2x2 grid */
  .hero-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem 1.5rem;
    justify-items: center;
  }
  .stat-num { font-size: 1.6rem; }
  .stat-lbl { font-size: 0.7rem; }

  /* Category grid — 2 columns */
  .cat-grid { grid-template-columns: 1fr 1fr; gap: 0.6rem; }
  .cat-card { padding: 1rem 0.6rem; }
  .cat-icon { font-size: 1.6rem; }
  .cat-name { font-size: 0.8rem; }
  .cat-count { font-size: 0.68rem; }

  /* Products grid — single column */
  .prod-grid { grid-template-columns: 1fr; }
  .prod-card { max-width: 100%; }

  /* Section headings */
  .sec { padding: 2.5rem 1rem; }
  .sec-title { font-size: 1.4rem; }

  /* Blog grid */
  .blog-grid { grid-template-columns: 1fr !important; }

  /* How-it-works */
  .how-grid { grid-template-columns: 1fr; gap: 1rem; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; }
  .footer { padding: 2.5rem 1rem 1.5rem; }

  /* Modal — full screen on mobile */
  .modal-box {
    width: 100% !important;
    max-width: 100% !important;
    max-height: 92vh;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    margin: auto 0 0 0;
    overflow-y: auto;
  }
  .modal-overlay { align-items: flex-end; }

  /* Product modal */
  .prod-modal-top { flex-direction: column; }
  .feats-grid { grid-template-columns: 1fr; }

  /* Ticker wrap */
  .ticker-wrap { font-size: 0.75rem; }

  /* Sell / Contact forms */
  .sell-form-grid, .contact-grid { grid-template-columns: 1fr; }

  /* Disclaimer page */
  #pg-disclaimer > div > div { border-radius: 0 !important; min-height: 100vh; }
  #pg-disclaimer > div > div > div:first-child { padding: 1.5rem 1.2rem; }
  #pg-disclaimer > div > div > div:last-child { padding: 1.5rem 1.2rem; }
}

/* ── 768px tablets ── */
@media (max-width: 768px) {
  .prod-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
  .cat-grid { grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); }
  .hero-stats { gap: 1.5rem; }
  .sec { padding: 3rem 1.2rem; }
}

/* ── Ticker tape: always visible on all screen sizes ── */
@media (max-width: 768px) {
  .tv-ticker-wrap {
    height: 40px !important;
    top: 36px !important;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .tv-ticker-wrap .tradingview-widget-container,
  .tv-ticker-wrap .tradingview-widget-container__widget {
    height: 40px !important;
    min-width: 600px; /* ensures symbols are visible on small screens */
  }
}