/* ── shared/inner.css — base styles for all inner pages ── */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500&display=swap');

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

:root {
  --accent: #00F0FF;
  --text: #fff;
  --muted: rgba(255,255,255,0.45);
  --card-bg: rgba(255,255,255,0.025);
  --card-border: rgba(255,255,255,0.09);
  --sidebar-w: 220px;
}

html { font-size: 16px; }

body {
  background: #000;
  color: #fff;
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Background canvas ── */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
}

/* ── Sidebar ── */
.sidebar {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: var(--sidebar-w);
  z-index: 100;
  display: flex;
  flex-direction: column;
  padding: 36px 28px;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(12px);
  border-right: 1px solid rgba(255,255,255,0.07);
  transform: translateX(0);
  transition: transform 0.3s cubic-bezier(.4,0,.2,1);
  overflow: hidden;
}

.sidebar-logo a {
  font-size: 15px;
  font-weight: 300;
  letter-spacing: 0.04em;
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: color 0.25s;
}
.sidebar-logo a img {
  width: 28px;
  height: 28px;
  display: block;
  flex-shrink: 0;
}
.sidebar-logo a:hover { color: rgb(0,240,255); }

.sidebar-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-links li a {
  display: block;
  padding: 9px 12px;
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.02em;
  border-radius: 2px;
  transition: color 0.2s, background 0.2s;
}

.sidebar-links li a:hover { color: #fff; background: rgba(255,255,255,0.05); }
.sidebar-links li.active a { color: #fff; }
.sidebar-links li.active a::before {
  content: '—';
  margin-right: 8px;
  color: var(--accent);
  font-size: 12px;
}
.sidebar-links li.trinity-item a {
  color: rgba(255,255,255,0.75);
  display: flex; align-items: center; gap: 8px;
}
.sidebar-links li.trinity-item a::after {
  content: '△';
  font-size: 9px;
  color: var(--accent);
  margin-left: auto;
}
.sidebar-links li.trinity-item.active a { color: #fff; }
.sidebar-links li.dim a { color: rgba(255,255,255,0.22); }
.sidebar-links li.dim a:hover { color: rgba(255,255,255,0.45); }
.soon-badge {
  font-size: 9px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase;
  color: rgba(255,255,255,0.22); border: 1px solid rgba(255,255,255,0.1);
  padding: 1px 5px; margin-left: 6px;
}

.sidebar-bottom { padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.08); }

.btn-connect {
  display: block;
  text-align: center;
  padding: 9px 16px;
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.6);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s;
}
.btn-connect:hover { border-color: var(--accent); color: var(--accent); }

/* ── Sidebar TOC ── */
.sidebar-toc {
  flex: 1;
  overflow-y: auto;
  margin: 0 -28px;
  padding: 24px 28px 0;
  border-top: 1px solid rgba(255,255,255,0.07);
  margin-top: 20px;
}
.sidebar-toc .toc-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  margin-bottom: 16px;
  display: block;
}
.sidebar-toc ul { list-style: none; display: flex; flex-direction: column; gap: 2px; }
.sidebar-toc ul li a {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  text-decoration: none;
  display: block;
  padding: 5px 28px 5px 0;
  transition: color 0.2s;
  border-right: 1px solid transparent;
  line-height: 1.4;
}
.sidebar-toc ul li a:hover { color: #fff; border-right-color: rgba(255,255,255,0.2); }
.sidebar-toc ul li a.active { color: #00F0FF; border-right-color: #00F0FF; }

/* ── Hamburger ── */
.hamburger {
  display: none;
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 200;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 1px;
  background: #fff;
  transition: transform 0.3s, opacity 0.3s;
}

/* ── Page content ── */
.page-content {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  position: relative;
  z-index: 10;
  padding: 0 0 80px;
}

.page-hero {
  padding: 72px 64px 56px;
  max-width: 900px;
}

.page-hero h1 {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 18px;
}

.hero-sub {
  font-size: clamp(15px, 1.5vw, 18px);
  color: rgba(255,255,255,0.6);
  max-width: 560px;
  line-height: 1.65;
}

.content-section {
  padding: 0 64px;
  margin-bottom: 64px;
}

/* ── Card ── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 28px 24px;
  transition: border-color 0.25s;
}
.card:hover { border-color: rgba(255,255,255,0.22); }

/* ── Bottom tabs (mobile) ── */
.bottom-tabs {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(12px);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 8px 0 12px;
  justify-content: space-around;
}

.bottom-tabs a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  color: rgba(255,255,255,0.35);
  text-decoration: none;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.2s;
}
.bottom-tabs a span { font-size: 16px; line-height: 1; }
.bottom-tabs a.active { color: #fff; }
.bottom-tabs a:hover { color: rgba(255,255,255,0.7); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); padding-top: 72px; }
  .hamburger { display: flex; }
  .page-content { margin-left: 0; padding-bottom: 72px; }
  .page-hero { padding: 56px 24px 40px; }
  .content-section { padding: 0 24px; }
  .bottom-tabs { display: flex; }
}

/* ── Fade-in on scroll ── */
.fade-in { opacity: 0; transform: translateY(16px); transition: opacity 0.55s ease, transform 0.55s ease; }
.fade-in.visible { opacity: 1; transform: none; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: #000; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); }