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

:root {
  --bg: #0a0a0f;
  --bg-card: #12121a;
  --bg-card-hover: #1a1a26;
  --border: #1e1e2e;
  --border-accent: #2d2d44;
  --text: #e4e4ef;
  --text-muted: #8888a4;
  --text-dim: #5a5a74;
  --accent: #6c5ce7;
  --accent-light: #a29bfe;
  --accent-glow: rgba(108, 92, 231, 0.15);
  --green: #00b894;
  --green-glow: rgba(0, 184, 148, 0.15);
  --red: #fd5e53;
  --orange: #fdcb6e;
  --blue: #74b9ff;
  --gradient-1: linear-gradient(135deg, #6c5ce7 0%, #a29bfe 100%);
  --gradient-2: linear-gradient(135deg, #00b894 0%, #55efc4 100%);
  --gradient-3: linear-gradient(135deg, #fd5e53 0%, #fdcb6e 100%);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 1rem; }
h3 { font-size: 1.3rem; margin-bottom: 0.75rem; }
h4 { font-size: 1.05rem; color: var(--text-muted); font-weight: 600; }
p { color: var(--text-muted); margin-bottom: 1rem; }
a { color: var(--accent-light); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent); }
strong { color: var(--text); font-weight: 600; }

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.section { padding: 5rem 0; }
.section + .section { border-top: 1px solid var(--border); }

/* Navigation */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}
nav .container {
  display: flex; align-items: center; justify-content: space-between;
}
nav .logo {
  font-size: 1.2rem; font-weight: 700; color: var(--text);
  display: flex; align-items: center; gap: 0.5rem;
}
nav .logo span { color: var(--accent-light); }
nav ul { list-style: none; display: flex; gap: 2rem; }
nav ul li a {
  color: var(--text-muted); font-size: 0.9rem; font-weight: 500;
  transition: color 0.2s;
}
nav ul li a:hover { color: var(--text); }

/* Mobile nav */
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  nav ul {
    display: none; flex-direction: column; position: absolute;
    top: 100%; left: 0; right: 0; background: var(--bg-card);
    border-bottom: 1px solid var(--border); padding: 1rem 2rem; gap: 1rem;
  }
  nav ul.open { display: flex; }
}

/* Hero */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 8rem 2rem 4rem;
  background: radial-gradient(ellipse at 50% 0%, var(--accent-glow) 0%, transparent 60%);
}
.hero-badge {
  display: inline-block; padding: 0.4rem 1rem; border-radius: 100px;
  background: var(--accent-glow); border: 1px solid var(--border-accent);
  color: var(--accent-light); font-size: 0.85rem; font-weight: 500;
  margin-bottom: 1.5rem;
}
.hero h1 { margin-bottom: 1.5rem; }
.hero h1 .gradient {
  background: var(--gradient-1); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}
.hero p { font-size: 1.15rem; max-width: 640px; margin: 0 auto 2.5rem; }
.hero-stats {
  display: flex; gap: 3rem; justify-content: center; flex-wrap: wrap;
  margin-top: 3rem;
}
.hero-stat { text-align: center; }
.hero-stat .number {
  font-size: 2rem; font-weight: 700; color: var(--text);
  display: block;
}
.hero-stat .label {
  font-size: 0.85rem; color: var(--text-dim); margin-top: 0.25rem;
}

/* Cards */
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; padding: 2rem; transition: all 0.3s;
}
.card:hover { border-color: var(--border-accent); background: var(--bg-card-hover); }
.card-icon {
  width: 48px; height: 48px; border-radius: 10px; display: flex;
  align-items: center; justify-content: center; font-size: 1.4rem;
  margin-bottom: 1rem;
}
.card-icon.purple { background: var(--accent-glow); }
.card-icon.green { background: var(--green-glow); }
.card-icon.orange { background: rgba(253, 203, 110, 0.15); }
.card-icon.blue { background: rgba(116, 185, 255, 0.15); }

.card-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem; margin-top: 2rem;
}
.card-grid-2 { grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); }
.card-grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* Tables */
.table-wrap {
  overflow-x: auto; margin: 1.5rem 0; border-radius: 12px;
  border: 1px solid var(--border);
}
table {
  width: 100%; border-collapse: collapse; font-size: 0.95rem;
}
thead { background: var(--bg-card); }
th {
  text-align: left; padding: 0.85rem 1.25rem; font-weight: 600;
  color: var(--text-muted); font-size: 0.85rem; text-transform: uppercase;
  letter-spacing: 0.04em; border-bottom: 1px solid var(--border);
}
td {
  padding: 0.85rem 1.25rem; border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg-card-hover); }

/* Tags / Badges */
.tag {
  display: inline-block; padding: 0.2rem 0.6rem; border-radius: 6px;
  font-size: 0.8rem; font-weight: 500;
}
.tag.green { background: var(--green-glow); color: var(--green); }
.tag.red { background: rgba(253, 94, 83, 0.15); color: var(--red); }
.tag.orange { background: rgba(253, 203, 110, 0.15); color: var(--orange); }
.tag.blue { background: rgba(116, 185, 255, 0.15); color: var(--blue); }
.tag.purple { background: var(--accent-glow); color: var(--accent-light); }

/* Comparison blocks */
.vs-block {
  display: grid; grid-template-columns: 1fr auto 1fr; gap: 2rem;
  align-items: start; margin: 2rem 0;
}
.vs-divider {
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.2rem; color: var(--text-dim);
  padding-top: 2rem;
}
@media (max-width: 768px) {
  .vs-block { grid-template-columns: 1fr; }
  .vs-divider { padding: 0; }
}

/* Quote blocks */
.quote {
  border-left: 3px solid var(--accent); padding: 1.25rem 1.5rem;
  background: var(--accent-glow); border-radius: 0 8px 8px 0;
  margin: 1.5rem 0;
}
.quote p { color: var(--text); margin-bottom: 0; font-style: italic; }
.quote .attr { color: var(--text-dim); font-style: normal; margin-top: 0.5rem; font-size: 0.85rem; }

/* Metric highlight */
.metric-row {
  display: flex; flex-wrap: wrap; gap: 1.5rem; margin: 2rem 0;
}
.metric {
  flex: 1; min-width: 180px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: 10px; padding: 1.5rem;
  text-align: center;
}
.metric .value {
  font-size: 1.8rem; font-weight: 700; color: var(--text);
  display: block;
}
.metric .value.green { color: var(--green); }
.metric .value.red { color: var(--red); }
.metric .value.purple { color: var(--accent-light); }
.metric .value.orange { color: var(--orange); }
.metric .desc {
  font-size: 0.85rem; color: var(--text-dim); margin-top: 0.35rem;
}

/* Flow / Process */
.flow {
  display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap;
  margin: 1.5rem 0;
}
.flow-step {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 8px; padding: 0.75rem 1.25rem; font-size: 0.9rem;
  color: var(--text); font-weight: 500;
}
.flow-arrow { color: var(--text-dim); font-size: 1.2rem; }

/* Section headers */
.section-header {
  text-align: center; max-width: 700px; margin: 0 auto 3rem;
}
.section-label {
  font-size: 0.85rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--accent-light); margin-bottom: 0.75rem;
}

/* Pros/Cons */
.pros-cons { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin: 1.5rem 0; }
@media (max-width: 600px) { .pros-cons { grid-template-columns: 1fr; } }
.pros-cons ul { list-style: none; padding: 0; }
.pros-cons li {
  padding: 0.4rem 0; color: var(--text-muted); font-size: 0.95rem;
  padding-left: 1.5rem; position: relative;
}
.pros-cons li::before {
  position: absolute; left: 0; font-weight: 700;
}
.pros li::before { content: "+"; color: var(--green); }
.cons li::before { content: "-"; color: var(--red); }

/* TOC sidebar */
.toc {
  position: fixed; right: 2rem; top: 50%; transform: translateY(-50%);
  z-index: 50; display: flex; flex-direction: column; gap: 0.5rem;
}
.toc a {
  width: 10px; height: 10px; border-radius: 50%; background: var(--border);
  display: block; transition: all 0.3s; position: relative;
}
.toc a:hover, .toc a.active { background: var(--accent); transform: scale(1.3); }
.toc a .tooltip {
  position: absolute; right: 20px; top: 50%; transform: translateY(-50%);
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 6px;
  padding: 0.3rem 0.7rem; font-size: 0.75rem; color: var(--text);
  white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity 0.2s;
}
.toc a:hover .tooltip { opacity: 1; }
@media (max-width: 1400px) { .toc { display: none; } }

/* Lists */
.feature-list { list-style: none; padding: 0; }
.feature-list li {
  padding: 0.6rem 0; border-bottom: 1px solid var(--border);
  color: var(--text-muted); display: flex; gap: 0.75rem; align-items: flex-start;
}
.feature-list li:last-child { border-bottom: none; }
.feature-list .bullet {
  flex-shrink: 0; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent); margin-top: 0.55rem;
}

/* Diagram / Architecture */
.arch-diagram {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; padding: 2.5rem; margin: 2rem 0;
  font-family: 'JetBrains Mono', 'Fira Code', monospace; font-size: 0.85rem;
  line-height: 1.8; color: var(--text-muted); overflow-x: auto;
  white-space: pre;
}

/* CTA */
.cta-block {
  text-align: center; padding: 4rem 2rem;
  background: radial-gradient(ellipse at 50% 100%, var(--accent-glow) 0%, transparent 60%);
  border-radius: 16px; margin: 2rem 0;
}

/* Footer */
footer {
  border-top: 1px solid var(--border); padding: 3rem 0;
  text-align: center; color: var(--text-dim); font-size: 0.85rem;
}

/* ────────────────────────────────────────────────────────────
   Layout fixes — defensive rules to prevent desktop overlaps
   ──────────────────────────────────────────────────────────── */

/* Let grid/flex children shrink properly when content is long */
.card-grid > *, .card-grid-2 > *, .card-grid-4 > * { min-width: 0; }
.feature-list li > * { min-width: 0; }
table { table-layout: auto; word-break: break-word; }
.card p, .card li, .feature-list li, .quote p { overflow-wrap: break-word; word-wrap: break-word; }

/* Hero stats: explicit wrapping + column gap control on narrower screens */
.hero-stats {
  display: flex; gap: 2rem; justify-content: center; flex-wrap: wrap;
  margin-top: 2.5rem;
}
@media (max-width: 768px) { .hero-stats { gap: 1.25rem; } }

/* Fund bar: prevent text overflow in narrow segments */
.fund-bar .seg {
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  min-width: 0;
}
.fund-bar .seg:empty { padding: 0 !important; }

/* Tier stack: allow narrower desktop to collapse to single column sooner */
@media (max-width: 1024px) {
  .tier-row { grid-template-columns: 1fr !important; }
}

/* ─── Positioning matrix (competitive section) ──────────── */
.matrix-wrap {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.75rem; margin: 1.5rem 0;
}
.matrix-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  border: 1px solid var(--border); border-radius: 10px; overflow: hidden;
}
.matrix-quad {
  padding: 1.25rem 1.4rem; position: relative; min-height: 180px;
}
.matrix-quad + .matrix-quad { border-left: 1px dashed var(--border-accent); }
.matrix-grid > .matrix-quad:nth-child(1),
.matrix-grid > .matrix-quad:nth-child(2) {
  border-bottom: 1px dashed var(--border-accent);
}
.matrix-sh { background: rgba(116,185,255,0.04); }
.matrix-fh { background: var(--accent-glow); }
.matrix-sl { background: rgba(253,94,83,0.03); }
.matrix-fl { background: rgba(253,203,110,0.04); }
.matrix-label {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; margin-bottom: 0.9rem;
}
.matrix-item {
  padding: 0.5rem 0; display: flex; flex-direction: column; gap: 0.15rem;
}
.matrix-item strong { color: var(--text); font-weight: 600; font-size: 0.95rem; }
.matrix-item span { color: var(--text-dim); font-size: 0.8rem; line-height: 1.4; }
.matrix-featured {
  margin-top: 0.5rem; padding: 0.9rem 1rem;
  background: var(--bg); border: 2px solid var(--accent); border-radius: 8px;
  display: flex; flex-direction: column; gap: 0.35rem;
}
.matrix-featured strong { color: var(--accent-light); font-size: 1.1rem; }
.matrix-featured span { color: var(--text); font-size: 0.85rem; line-height: 1.5; }
.matrix-gap-badge {
  position: absolute; top: 0.75rem; right: 0.75rem;
  background: var(--green); color: white;
  padding: 0.2rem 0.55rem; border-radius: 4px;
  font-size: 0.65rem; font-weight: 700; letter-spacing: 0.05em;
}
.matrix-axis {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1rem 0.25rem 0; font-size: 0.8rem; color: var(--text-dim);
}
.matrix-axis-label { font-weight: 600; color: var(--text-muted); }

@media (max-width: 768px) {
  .matrix-grid { grid-template-columns: 1fr; }
  .matrix-quad + .matrix-quad { border-left: none; border-top: 1px dashed var(--border-accent); }
  .matrix-grid > .matrix-quad:nth-child(1),
  .matrix-grid > .matrix-quad:nth-child(2) { border-bottom: none; }
}

/* TOC — widen the breakpoint so it doesn't crowd content on 1401-1500px viewports */
@media (max-width: 1520px) { .toc { display: none; } }

/* Nav: tighter at intermediate desktop widths so items don't crowd the logo */
@media (min-width: 769px) and (max-width: 1180px) {
  nav ul { gap: 1.1rem; font-size: 0.85rem; }
  nav .logo { font-size: 1.1rem; }
}
@media (min-width: 769px) and (max-width: 980px) {
  nav ul { gap: 0.9rem; font-size: 0.8rem; }
}

/* Utilities */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 2rem; }
.text-center { text-align: center; }
.text-accent { color: var(--accent-light); }
.text-green { color: var(--green); }
.text-muted { color: var(--text-muted); }
.text-dim { color: var(--text-dim); }
.text-sm { font-size: 0.85rem; }
.flex { display: flex; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.flex-wrap { flex-wrap: wrap; }