/* ── CSS Custom Properties ──────────────────────────────────────────── */
:root {
  --bg-0:         #050E1B;
  --bg-1:         #091628;
  --bg-2:         #0D1E35;
  --bg-card:      rgba(9, 22, 41, 0.62);
  --bg-card-h:    rgba(13, 30, 55, 0.82);

  --blue-deep:    #023E6B;
  --blue-mid:     #0077B6;
  --blue-accent:  #00B4D8;
  --teal:         #06D6A0;
  --gold:         #E9C46A;
  --gold-dim:     rgba(233, 196, 106, 0.55);

  --text-1:       #CAF0F8;
  --text-2:       #8BBECE;
  --text-3:       #4E7A8A;
  --text-4:       #2A4A58;

  --border:       rgba(0, 180, 216, 0.11);
  --border-h:     rgba(0, 180, 216, 0.32);
  --shadow-sm:    0 4px 16px rgba(0,0,0,0.32);
  --shadow-md:    0 8px 32px rgba(0,0,0,0.45);
  --shadow-lg:    0 20px 60px rgba(0,0,0,0.6);

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-mono:    'Space Mono', 'Courier New', monospace;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;

  --nav-h:        68px;
  --r-sm:         6px;
  --r:            12px;
  --r-lg:         20px;
  --ease:         cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  background: var(--bg-0);
  color: var(--text-1);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.38s var(--ease), transform 0.38s var(--ease);
}
body.page-loaded  { opacity: 1; transform: translateY(0); }
body.page-leaving { opacity: 0; transform: translateY(-8px); }

::-webkit-scrollbar       { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb { background: var(--blue-accent); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--teal); }

/* ── Canvas ─────────────────────────────────────────────────────────── */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: auto;
  touch-action: none;
}

/* ── Navigation ─────────────────────────────────────────────────────── */
#main-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex;
  align-items: center;
  padding: 0 2.5rem;
  gap: 1.5rem;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), transform 0.3s var(--ease);
}
#main-nav.nav-scrolled {
  background: rgba(5, 14, 27, 0.93);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}
#main-nav.nav-hidden { transform: translateY(-100%); }

.nav-logo {
  display: flex; align-items: center; gap: 0.65rem;
  text-decoration: none; flex-shrink: 0;
}
.nav-monogram {
  width: 36px; height: 36px;
  border: 1.5px solid var(--gold);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: 0.85rem; font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.5px;
  transition: background 0.2s, color 0.2s;
}
.nav-logo:hover .nav-monogram { background: var(--gold); color: var(--bg-0); }

.nav-name {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-2);
}

#nav-coords {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-3);
  letter-spacing: 1px;
  margin-right: auto;
}

#nav-menu { display: flex; align-items: center; gap: 0.2rem; list-style: none; }

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-3);
  padding: 0.4rem 0.9rem;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.nav-link:hover { color: var(--blue-accent); border-color: var(--border); background: rgba(0,180,216,0.05); }
.nav-link.active { color: var(--gold); border-color: var(--gold-dim); background: rgba(233,196,106,0.07); }
.nav-link.auth-only { display: none; }

#nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
#nav-hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--text-2); border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
#nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
#nav-hamburger.open span:nth-child(2) { opacity: 0; }
#nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Layout ──────────────────────────────────────────────────────────── */
.container { max-width: 1140px; margin: 0 auto; padding: 0 2rem; }
.section   { position: relative; z-index: 1; padding: 100px 0; }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem; letter-spacing: 3px; text-transform: uppercase;
  color: var(--blue-accent); margin-bottom: 0.65rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 300;
  color: var(--text-1); line-height: 1.15; margin-bottom: 1.1rem;
}
.section-title em { font-style: italic; color: var(--gold); }
.section-subtitle { font-size: 1rem; color: var(--text-2); max-width: 560px; line-height: 1.72; }

/* ── Buttons ─────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.72rem 1.65rem;
  border-radius: var(--r-sm);
  font-family: var(--font-mono); font-size: 0.75rem;
  letter-spacing: 1.5px; text-transform: uppercase;
  text-decoration: none; cursor: pointer; border: none;
  transition: all 0.25s var(--ease); white-space: nowrap;
}
.btn-primary { background: var(--blue-accent); color: var(--bg-0); font-weight: 700; }
.btn-primary:hover { background: var(--teal); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,180,216,0.35); }
.btn-outline { background: transparent; color: var(--text-1); border: 1px solid var(--border-h); }
.btn-outline:hover { border-color: var(--blue-accent); color: var(--blue-accent); background: rgba(0,180,216,0.07); transform: translateY(-2px); }
.btn-gold { background: transparent; color: var(--gold); border: 1px solid var(--gold-dim); }
.btn-gold:hover { background: var(--gold); color: var(--bg-0); box-shadow: 0 8px 24px rgba(233,196,106,0.3); transform: translateY(-2px); }
.btn-sm { padding: 0.48rem 1.1rem; font-size: 0.67rem; }

/* ── Glass cards ─────────────────────────────────────────────────────── */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--r);
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s var(--ease);
}
.glass-card:hover { border-color: var(--border-h); box-shadow: var(--shadow-md); }

/* ── Tags ────────────────────────────────────────────────────────────── */
.tag {
  display: inline-block; padding: 0.18rem 0.6rem;
  border-radius: 4px;
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.5px;
  background: rgba(0,180,216,0.1); border: 1px solid rgba(0,180,216,0.2); color: var(--blue-accent);
}
.tag-gold { background: rgba(233,196,106,0.1); border-color: rgba(233,196,106,0.22); color: var(--gold); }
.tag-teal { background: rgba(6,214,160,0.1);   border-color: rgba(6,214,160,0.22);   color: var(--teal); }

/* ── Scroll-reveal ───────────────────────────────────────────────────── */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.72s var(--ease), transform 0.72s var(--ease);
}
.reveal.revealed { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }
.reveal-d4 { transition-delay: 0.4s; }

/* ── Page header (inner pages) ───────────────────────────────────────── */
.page-header {
  position: relative; z-index: 1;
  padding: calc(var(--nav-h) + 80px) 0 72px;
  text-align: center;
}
.page-header .section-label { text-align: center; }

/* ── Footer ──────────────────────────────────────────────────────────── */
footer { position: relative; z-index: 1; background: var(--bg-1); border-top: 1px solid var(--border); padding: 2.5rem 0; }
.footer-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; }
.footer-copy  { font-family: var(--font-mono); font-size: 0.66rem; color: var(--text-3); letter-spacing: 1px; }
.footer-links { display: flex; gap: 1.5rem; }
.footer-link  { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 1px; color: var(--text-3); text-decoration: none; transition: color 0.2s; }
.footer-link:hover { color: var(--blue-accent); }

/* ── Utility classes ─────────────────────────────────────────────────── */
.u-tc        { text-align: center; }
.u-mx-auto   { margin-left: auto; margin-right: auto; }
.u-mt-1      { margin-top: 1rem; }
.u-mb-1      { margin-bottom: 1rem; }
.u-mb-2      { margin-bottom: 2rem; }
.u-mb-3      { margin-bottom: 3rem; }
.u-mb-175    { margin-bottom: 1.75rem; }
.u-pt-0      { padding-top: 0; }
.u-pt-sm     { padding-top: 1.5rem; }
.u-pt-md     { padding-top: 2rem; }
.u-pb-xl     { padding-bottom: 120px; }
.u-flex-center     { display: flex; justify-content: center; }
.u-flex-center-gap { display: flex; justify-content: center; gap: 1rem; }
.u-flex-row-center { display: flex; gap: 1rem; align-items: center; }
.u-inline-mb-sm    { display: inline-block; margin-bottom: 0.6rem; }

/* Page-header specific overrides */
.page-h1     { text-align: center; }
.page-sub    { margin-left: auto; margin-right: auto; text-align: center; margin-bottom: 1.75rem; }
.page-sub-tc { margin-left: auto; margin-right: auto; text-align: center; }
.page-cta    { display: flex; justify-content: center; }

/* Sign-in error message */
.signin-error-msg {
  display: none; color: #ff6b6b; font-size: 0.82rem;
  margin-bottom: 1rem; padding: 0.75rem;
  background: rgba(255,107,107,0.1);
  border: 1px solid rgba(255,107,107,0.25);
  border-radius: 6px;
}

/* ── Scene controls panel ────────────────────────────────────────────── */
.scene-controls {
  position: fixed;
  top: calc(var(--nav-h) + 12px);
  right: 16px;
  z-index: 90;
  background: rgba(5, 14, 27, 0.82);
  border: 1px solid rgba(0,180,216,0.18);
  backdrop-filter: blur(10px);
  border-radius: var(--r);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 180px;
  box-shadow: var(--shadow-md);
}
.sc-group { display: flex; flex-direction: column; gap: 4px; }
.sc-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 1.5px;
  color: var(--text-3);
  text-transform: uppercase;
}
.sc-label span { color: var(--gold); }
.scene-controls input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 3px;
  background: rgba(0,180,216,0.25);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
.scene-controls input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--gold);
  cursor: pointer;
}
.scene-controls input[type=range]::-moz-range-thumb {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--gold);
  border: none;
  cursor: pointer;
}
@media (max-width: 600px) { .scene-controls { display: none; } }

/* ── Profile dropdown ────────────────────────────────────────────────── */
.nav-profile-wrap { position: relative; list-style: none; }

.nav-profile-btn {
  background: none; border: none; cursor: pointer; padding: 0;
  display: flex; align-items: center; gap: 0.5rem;
}

.nav-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  border: 1.5px solid var(--gold-dim);
  object-fit: cover; display: block;
  transition: border-color 0.2s;
}
.nav-profile-btn:hover .nav-avatar { border-color: var(--gold); }
.nav-avatar-init {
  background: var(--blue-deep);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 0.65rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}

.nav-profile-dropdown {
  display: none;
  position: absolute; top: calc(100% + 10px); right: 0;
  min-width: 230px;
  background: rgba(5, 14, 27, 0.97);
  border: 1px solid var(--border-h);
  border-radius: var(--r);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 0.5rem 0;
  z-index: 200;
  transform: translateY(-6px); opacity: 0;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
}
.nav-profile-dropdown.open {
  display: block; opacity: 1; transform: translateY(0);
}

.npd-user {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.75rem 1rem 0.65rem;
}
.npd-avatar {
  width: 38px; height: 38px; border-radius: 50%;
  object-fit: cover; flex-shrink: 0;
  border: 1.5px solid var(--border-h);
}
.npd-avatar-init {
  background: var(--blue-deep); color: var(--gold);
  font-family: var(--font-mono); font-size: 0.7rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.npd-info { min-width: 0; }
.npd-name  { font-size: 0.82rem; color: var(--text-1); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.npd-email { font-size: 0.68rem; color: var(--text-3); font-family: var(--font-mono); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.npd-divider { height: 1px; background: var(--border); margin: 0.35rem 0; }

.npd-action {
  display: block; width: 100%;
  padding: 0.55rem 1rem;
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 1px; text-transform: uppercase;
  color: var(--text-2); background: none; border: none; cursor: pointer;
  text-align: left; text-decoration: none;
  transition: background 0.15s, color 0.15s;
}
.npd-action:hover { background: rgba(0,180,216,0.07); color: var(--blue-accent); }
.npd-signout:hover { background: rgba(255,107,107,0.07); color: #ff6b6b; }

/* ── User Database modal ─────────────────────────────────────────────── */
.udb-overlay {
  position: fixed; inset: 0; z-index: 500;
  background: rgba(2, 8, 16, 0.82); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  padding: 1.5rem;
  opacity: 0; transition: opacity 0.25s var(--ease);
  pointer-events: none;
}
.udb-overlay.open { opacity: 1; pointer-events: auto; }

.udb-panel {
  background: var(--bg-1);
  border: 1px solid var(--border-h);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  width: 100%; max-width: 780px;
  max-height: 82vh;
  display: flex; flex-direction: column;
  transform: translateY(18px) scale(0.98);
  transition: transform 0.25s var(--ease);
}
.udb-overlay.open .udb-panel { transform: translateY(0) scale(1); }

.udb-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 1.5rem 0.9rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.udb-title {
  font-family: var(--font-display); font-size: 1.45rem; font-weight: 300;
  color: var(--text-1); margin: 0;
}
.udb-close {
  background: none; border: none; cursor: pointer;
  color: var(--text-3); font-size: 1.5rem; line-height: 1;
  padding: 0.2rem 0.4rem; border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}
.udb-close:hover { color: var(--text-1); background: rgba(255,255,255,0.06); }

.udb-body { overflow-y: auto; padding: 1.1rem 1.5rem 1.25rem; }

.udb-loading, .udb-empty {
  color: var(--text-3); font-family: var(--font-mono);
  font-size: 0.75rem; letter-spacing: 1px; text-align: center;
  padding: 2rem 0;
}

.udb-stats { margin-bottom: 0.75rem; }
.udb-stat-badge {
  font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--blue-accent);
  background: rgba(0,180,216,0.1); border: 1px solid rgba(0,180,216,0.2);
  border-radius: 4px; padding: 0.18rem 0.65rem;
}

.udb-table-wrap { overflow-x: auto; }
.udb-table {
  width: 100%; border-collapse: collapse;
  font-size: 0.82rem;
}
.udb-table th {
  font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--text-3);
  padding: 0.4rem 0.75rem; text-align: left;
  border-bottom: 1px solid var(--border);
}
.udb-table td {
  padding: 0.65rem 0.75rem; border-bottom: 1px solid rgba(0,180,216,0.05);
  vertical-align: middle; color: var(--text-2);
}
.udb-table tr:last-child td { border-bottom: none; }
.udb-table tr:hover td { background: rgba(0,180,216,0.03); }

.udb-cell-avatar { width: 44px; }
.udb-cell-mono   { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-3); }
.udb-cell-center { text-align: center; }

.udb-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  object-fit: cover; border: 1px solid var(--border);
}
.udb-avatar-init {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--blue-deep); color: var(--gold);
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border);
}

.udb-name     { font-weight: 500; color: var(--text-1); font-size: 0.84rem; }
.udb-email-sm { font-family: var(--font-mono); font-size: 0.65rem; color: var(--text-3); margin-top: 0.1rem; }

.udb-del-btn {
  background: none; border: 1px solid rgba(255,107,107,0.2);
  color: rgba(255,107,107,0.6); cursor: pointer;
  border-radius: 4px; width: 26px; height: 26px;
  font-size: 1rem; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.udb-del-btn:hover { background: rgba(255,107,107,0.1); color: #ff6b6b; border-color: rgba(255,107,107,0.5); }

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .footer-inner { grid-template-columns: 1fr; text-align: center; }
  .footer-links { justify-content: center; }
  #nav-coords   { display: none; }
  #nav-hamburger { display: flex; margin-left: auto; }
  #nav-menu {
    display: none; position: fixed; top: var(--nav-h); left: 0; right: 0;
    background: rgba(5,14,27,0.97); backdrop-filter: blur(16px);
    flex-direction: column; padding: 1.25rem; gap: 0.3rem;
    border-bottom: 1px solid var(--border);
  }
  #nav-menu.open { display: flex; }
  #nav-menu .nav-link { padding: 0.7rem 1rem; }
  .nav-link { min-height: 44px; display: flex; align-items: center; }
  .btn      { min-height: 44px; }
  .tag      { font-size: 0.6rem; }
}
@media (max-width: 600px) {
  .btn       { justify-content: center; }
  .section   { padding: 60px 0; }
  .page-header { padding-top: calc(var(--nav-h) + 48px); padding-bottom: 48px; }
  .container { padding: 0 1.25rem; }
}