/* ==========================================================================
   ARTIVORALABS — Shared components: nav, footer, modal
   ========================================================================== */

/* ── Navbar ────────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 200;
  background: rgba(10, 12, 22, 0.82);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  transition: box-shadow var(--t-base), border-color var(--t-base);
}
.nav.scrolled { box-shadow: 0 1px 0 rgba(0,0,0,0.30), var(--shadow-sm); border-bottom-color: var(--line-strong); }

/* ── Logo / social-proof strip ────────────────────────────────────────── */
.logo-strip { padding: var(--sp-12) 0; border-bottom: 1px solid var(--line); }
.logo-strip-label { text-align: center; font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-30); margin-bottom: var(--sp-8); }
.logo-strip-row {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  align-items: center;
  justify-items: center;
  gap: var(--sp-6);
}
.logo-strip-row span { font-family: var(--f-display); font-weight: 600; font-size: var(--fs-lg); letter-spacing: -0.01em; color: var(--ink-30); transition: color var(--t-fast); text-align: center; }
.logo-strip-row span:hover { color: var(--ink-70); }
@media (max-width: 900px) { .logo-strip-row { grid-template-columns: repeat(3, 1fr); row-gap: var(--sp-6); } }
@media (max-width: 520px) { .logo-strip-row { grid-template-columns: repeat(2, 1fr); } }

.nav-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  height: var(--nav-h);
  column-gap: var(--sp-6);
}
.nav-brand { display: flex; align-items: center; gap: 10px; font-family: var(--f-display); font-weight: 700; font-size: 1.125rem; letter-spacing: -0.02em; justify-self: start; }
.nav-brand-mark { width: 30px; height: 30px; flex-shrink: 0; }
.nav-links { display: flex; align-items: stretch; justify-content: center; height: 100%; gap: var(--sp-1); }
.nav-links a { display: flex; align-items: center; font-size: var(--fs-sm); font-weight: 500; color: var(--ink-70); transition: color var(--t-fast); position: relative; padding: 0 var(--sp-3); white-space: nowrap; }
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-links a.active::after { content: ''; position: absolute; left: var(--sp-3); right: var(--sp-3); bottom: 0; height: 2px; background: var(--signal); border-radius: 2px 2px 0 0; }
.nav-actions { display: flex; align-items: center; justify-content: flex-end; gap: var(--sp-3); justify-self: end; }
.nav-menu-btn { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; }

@media (max-width: 1080px) {
  .nav-inner { grid-template-columns: 1fr auto; }
  .nav-links { position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0; background: var(--paper); flex-direction: column; align-items: flex-start; justify-content: flex-start; padding: var(--sp-8) var(--layout-gutter); gap: var(--sp-6); transform: translateX(100%); transition: transform var(--t-base); overflow-y: auto; z-index: 199; }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: var(--fs-lg); }
  .nav-links a.active::after { display: none; }
  .nav-menu-btn { display: flex; }
  .nav-actions .btn-outline { display: none; }
}

/* ── Footer ────────────────────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--line); padding: var(--sp-20) 0 var(--sp-10); background: var(--paper-soft); }
.footer-top { display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr)); gap: var(--sp-12); padding-bottom: var(--sp-16); align-items: start; }
.footer-brand-col p { font-size: var(--fs-sm); color: var(--ink-50); margin: var(--sp-4) 0 var(--sp-6); max-width: 320px; line-height: 1.65; }
.footer-col h5 { font-family: var(--f-mono); font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-30); margin-bottom: var(--sp-4); }
.footer-col a, .footer-col button { display: block; font-size: var(--fs-sm); color: var(--ink-70); padding: 6px 0; transition: color var(--t-fast); }
.footer-col a:hover, .footer-col button:hover { color: var(--signal); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-top: var(--sp-6); border-top: 1px solid var(--line); font-size: var(--fs-xs); color: var(--ink-30); }
.footer-social { display: flex; gap: var(--sp-3); }
.footer-social a { width: 32px; height: 32px; border-radius: var(--r-sm); border: 1px solid var(--line); display: flex; align-items: center; justify-content: center; color: var(--ink-50); }
.footer-social a:hover { border-color: var(--signal); color: var(--signal); }

@media (max-width: 820px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--sp-3); align-items: flex-start; }
}

/* ── Modal (waitlist) ──────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 500; background: rgba(10,12,18,0.55);
  display: flex; align-items: center; justify-content: center; padding: var(--sp-6);
  opacity: 0; visibility: hidden; transition: opacity var(--t-base), visibility var(--t-base);
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal-card { width: 100%; max-width: 480px; background: var(--paper); border-radius: var(--r-lg); padding: var(--sp-10); box-shadow: var(--shadow-lg); transform: scale(0.96) translateY(8px); transition: transform var(--t-base); position: relative; }
.modal-overlay.open .modal-card { transform: scale(1) translateY(0); }
.modal-close { position: absolute; top: var(--sp-4); right: var(--sp-4); width: 30px; height: 30px; border-radius: var(--r-sm); display: flex; align-items: center; justify-content: center; color: var(--ink-50); }
.modal-close:hover { background: var(--paper-soft); color: var(--ink); }
.modal-card h3 { font-size: var(--fs-xl); margin-bottom: var(--sp-2); }
.modal-card > p { font-size: var(--fs-sm); color: var(--ink-50); margin-bottom: var(--sp-6); line-height: 1.6; }
.field { margin-bottom: var(--sp-4); }
.field label { display: block; font-size: var(--fs-xs); font-weight: 600; color: var(--ink-70); margin-bottom: 6px; }
.field input { width: 100%; padding: 11px 14px; border: 1px solid var(--line-strong); border-radius: var(--r-sm); font-size: var(--fs-sm); background: var(--paper-soft); transition: border-color var(--t-fast), background var(--t-fast); }
.field input:focus { outline: none; border-color: var(--signal); background: var(--paper); box-shadow: 0 0 0 3px var(--signal-10); }
.modal-success { display: none; text-align: center; padding: var(--sp-6) 0; }
.modal-success.show { display: block; }
.modal-success svg { width: 44px; height: 44px; color: var(--signal); margin: 0 auto var(--sp-4); }
.modal-form.hide { display: none; }

/* ── Toast ─────────────────────────────────────────────────────────────── */
.toast-stack { position: fixed; bottom: var(--sp-6); right: var(--sp-6); z-index: 600; display: flex; flex-direction: column; gap: var(--sp-2); }
.toast { background: var(--paper-soft, #141815); color: var(--ink, #e7ede7); border: 1px solid var(--ink-30, rgba(231,237,231,.3)); font-size: var(--fs-sm); padding: 12px 18px; border-radius: var(--r-sm); box-shadow: var(--shadow-lg); animation: toast-in 0.3s var(--ease); }
.toast.leaving { animation: toast-out 0.25s var(--ease) forwards; }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }
@keyframes toast-out { to { opacity: 0; transform: translateY(8px); } }

/* Settings → Notifications / Cursor and effects */
html[data-toastpos="bc"] .toast-stack { left: 50%; right: auto; transform: translateX(-50%); align-items: center; }
html[data-toastpos="tr"] .toast-stack { top: var(--sp-6); bottom: auto; }
html[data-glass="lite"] *, html[data-glass="lite"] *::before, html[data-glass="lite"] *::after { backdrop-filter: none !important; -webkit-backdrop-filter: none !important; }