/* ==========================================================================
   juulwendell.dk — Design System
   Dark, gradient-rich, AI-aesthetic. Beautiful shapes, glass, and depth.
   ========================================================================== */

/* ---------- Custom Properties ---------- */

:root {
  --bg: #0a0e18;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-hover: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);
  --text: #b0b8c8;
  --text-bright: #eaf0ff;
  --text-dim: #5a6478;
  --accent: #7eb4ff;
  --accent-2: #a78bfa;
  --accent-3: #34d399;
  --glow-blue: rgba(126, 180, 255, 0.15);
  --glow-purple: rgba(167, 139, 250, 0.12);
  --glow-green: rgba(52, 211, 153, 0.10);

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;

  --max-width: 1100px;
  --prose-width: 720px;
  --section-padding: 140px;
  --card-padding: 40px;
  --card-radius: 20px;
}

/* ---------- Reset & Base ---------- */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--bg);
  overflow-x: hidden;
}

/* ---------- Background Gradient Mesh ---------- */

.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  will-change: transform;
}

.bg-orb--blue {
  top: -15%;
  left: -10%;
  width: 70vw;
  height: 70vw;
  background: radial-gradient(circle, rgba(126, 180, 255, 0.35) 0%, rgba(59, 130, 246, 0.18) 35%, transparent 65%);
  animation: orbDrift1 25s ease-in-out infinite;
}

.bg-orb--purple {
  top: 25%;
  right: -10%;
  width: 65vw;
  height: 65vw;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.30) 0%, rgba(139, 92, 246, 0.14) 35%, transparent 65%);
  animation: orbDrift2 30s ease-in-out infinite;
}

.bg-orb--green {
  bottom: -5%;
  left: 15%;
  width: 55vw;
  height: 55vw;
  background: radial-gradient(circle, rgba(52, 211, 153, 0.20) 0%, rgba(16, 185, 129, 0.08) 35%, transparent 65%);
  animation: orbDrift3 20s ease-in-out infinite;
}

.bg-orb--warm {
  top: 55%;
  left: -5%;
  width: 45vw;
  height: 45vw;
  background: radial-gradient(circle, rgba(251, 191, 36, 0.12) 0%, rgba(245, 158, 11, 0.06) 35%, transparent 65%);
  animation: orbDrift1 35s ease-in-out infinite reverse;
}

/* Subtle dot grid overlay */
.bg-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 80%);
}

@keyframes orbDrift1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(5vw, 3vh) scale(1.05); }
  66% { transform: translate(-3vw, -2vh) scale(0.95); }
}

@keyframes orbDrift2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-4vw, 5vh) scale(1.08); }
  66% { transform: translate(3vw, -3vh) scale(0.92); }
}

@keyframes orbDrift3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(6vw, -4vh) scale(1.1); }
}

/* Section-level accent glows */
body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 100vh;
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, rgba(126, 180, 255, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 40% 30% at 80% 20%, rgba(167, 139, 250, 0.05) 0%, transparent 60%);
  pointer-events: none;
  z-index: -1;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--text-bright);
}

img {
  max-width: 100%;
  display: block;
}

/* ---------- Typography ---------- */

h1, h2, h3, h4, h5, h6 {
  color: var(--text-bright);
  line-height: 1.2;
}

.hero-name {
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.7;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4.2rem);
  font-weight: 300;
  letter-spacing: -2px;
  line-height: 1.1;
  max-width: 850px;
  color: var(--text-bright);
}

.hero-subtitle {
  font-size: 1.15rem;
  font-weight: 400;
  line-height: 1.8;
  color: var(--text);
  max-width: 580px;
  margin-top: 2rem;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.6;
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 600;
  color: var(--text-bright);
  letter-spacing: -0.5px;
}

code,
.mono {
  font-family: var(--font-mono);
}

/* ---------- Layout ---------- */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: var(--section-padding) 0;
  position: relative;
}

.prose {
  max-width: var(--prose-width);
  line-height: 1.75;
}

.prose p + p {
  margin-top: 1.5rem;
}

/* ---------- Navigation ---------- */

nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 8, 13, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: 1px;
  text-decoration: none;
  transition: color 0.2s;
}

.nav-logo:hover {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.nav-links::-webkit-scrollbar {
  display: none;
}

.nav-links a {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-dim);
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: color 0.25s;
}

.nav-links a:hover {
  color: var(--text-bright);
}

/* ---------- Hero ---------- */

.hero {
  min-height: calc(100vh - 60px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem 0 4rem;
  position: relative;
}

/* Gradient orbs behind hero */
.hero::before {
  content: "";
  position: absolute;
  top: 5%;
  right: -10%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(126, 180, 255, 0.35) 0%, rgba(167, 139, 250, 0.18) 35%, transparent 65%);
  filter: blur(80px);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: 5%;
  left: -8%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.25) 0%, rgba(52, 211, 153, 0.10) 40%, transparent 65%);
  filter: blur(90px);
  pointer-events: none;
}

/* ---------- Hero Terminal ---------- */

.terminal {
  margin-top: 3.5rem;
  max-width: 680px;
  border-radius: 14px;
  overflow: hidden;
  background: rgba(10, 12, 20, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow:
    0 4px 60px rgba(0, 0, 0, 0.5),
    0 0 80px rgba(126, 180, 255, 0.06),
    0 0 120px rgba(167, 139, 250, 0.04);
  position: relative;
}

/* Gradient shimmer on top edge */
.terminal::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 10%, var(--accent) 30%, var(--accent-2) 50%, var(--accent-3) 70%, transparent 90%);
  opacity: 0.5;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.terminal-dots {
  display: flex;
  gap: 7px;
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot--red { background: #ff5f57; }
.dot--yellow { background: #febc2e; }
.dot--green { background: #28c840; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.3px;
}

.terminal-body {
  padding: 20px 22px 24px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.8;
}

.terminal-line {
  opacity: 0;
  animation: terminalFadeIn 0.4s ease forwards;
}

.line-1 { animation-delay: 0.5s; }
.line-2 { animation-delay: 1.2s; }
.line-3 { animation-delay: 2.2s; }
.line-4 { animation-delay: 3.0s; }
.line-5 { animation-delay: 3.8s; }
.line-6 { animation-delay: 5.0s; }
.line-7 { animation-delay: 5.8s; }
.line-8 { animation-delay: 6.5s; }

@keyframes terminalFadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.terminal-prompt {
  color: var(--accent-3);
  margin-right: 8px;
  font-weight: 500;
}

.terminal-command {
  color: var(--text-bright);
  font-weight: 500;
}

.terminal-user {
  color: var(--accent);
  margin-right: 8px;
  font-weight: 500;
}

.terminal-input {
  color: var(--text-bright);
}

.terminal-status {
  margin-right: 8px;
  font-weight: 700;
  font-size: 0.78rem;
}

.terminal-status--blue { color: var(--accent); }
.terminal-status--purple { color: var(--accent-2); }
.terminal-status--green { color: var(--accent-3); }

.terminal-output {
  color: var(--text);
}

.terminal-cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
  font-size: 0.9rem;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Subtle glow behind terminal */
.terminal::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 120%;
  height: 120%;
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse, rgba(126, 180, 255, 0.04) 0%, rgba(167, 139, 250, 0.03) 30%, transparent 60%);
  pointer-events: none;
  z-index: -1;
}

.scroll-indicator {
  margin-top: auto;
  padding-bottom: 3rem;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.72rem;
  font-family: var(--font-mono);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.scroll-indicator span {
  display: block;
  margin-top: 0.75rem;
  font-size: 1.2rem;
  opacity: 0.3;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ---------- Cards ---------- */

.card {
  position: relative;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.01) 100%);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  overflow: hidden;
}

/* Subtle gradient shimmer on each card */
.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-2), transparent);
  opacity: 0.4;
}

.card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.3), 0 0 60px var(--glow-blue);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

/* Individual card accent colors */
.card:nth-child(1) { --card-accent: var(--accent); --card-glow: var(--glow-blue); }
.card:nth-child(2) { --card-accent: var(--accent-2); --card-glow: var(--glow-purple); }
.card:nth-child(3) { --card-accent: var(--accent-3); --card-glow: var(--glow-green); }

.card:nth-child(1)::before {
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.card:nth-child(2)::before {
  background: linear-gradient(90deg, transparent, var(--accent-2), transparent);
}
.card:nth-child(3)::before {
  background: linear-gradient(90deg, transparent, var(--accent-3), transparent);
}

.card:nth-child(1):hover { box-shadow: 0 8px 40px rgba(0,0,0,0.3), 0 0 60px var(--glow-blue); }
.card:nth-child(2):hover { box-shadow: 0 8px 40px rgba(0,0,0,0.3), 0 0 60px var(--glow-purple); }
.card:nth-child(3):hover { box-shadow: 0 8px 40px rgba(0,0,0,0.3), 0 0 60px var(--glow-green); }

.card-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--card-accent, var(--accent));
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Small glowing dot before label */
.card-label::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--card-accent, var(--accent));
  box-shadow: 0 0 8px var(--card-accent, var(--accent));
  flex-shrink: 0;
}

.card-title {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 1rem;
  letter-spacing: -0.3px;
}

.card-description {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 1.75rem;
}

.card-meta {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.6;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.card-meta strong {
  color: var(--text);
  font-weight: 500;
}

/* ---------- Diagrams & Flow ---------- */

.diagram {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 48px var(--card-padding);
  margin-top: 3rem;
  backdrop-filter: blur(12px);
  overflow: hidden;
}

/* Subtle gradient on diagram background */
.diagram::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 400px;
  height: 400px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, var(--glow-blue) 0%, transparent 70%);
  opacity: 0.3;
  pointer-events: none;
  z-index: 0;
}

.diagram > * {
  position: relative;
  z-index: 1;
}

.diagram-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 2.5rem;
  text-align: center;
}

.flow-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.flow-box {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.5rem;
  font-size: 0.9rem;
  color: var(--text);
  text-align: center;
  min-width: 160px;
}

.flow-box--question {
  background: linear-gradient(135deg, rgba(126, 180, 255, 0.12), rgba(167, 139, 250, 0.08));
  border-color: rgba(126, 180, 255, 0.25);
  color: var(--text-bright);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 1rem 2rem;
  border-radius: 50px;
  box-shadow: 0 0 30px var(--glow-blue);
}

.flow-box--answer {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
}

.flow-connector {
  color: var(--text-dim);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.flow-branches {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.flow-branch {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.flow-branch-condition {
  font-size: 0.88rem;
  color: var(--text);
}

.flow-branch-arrow {
  color: var(--text-dim);
  font-size: 1rem;
  opacity: 0.4;
}

.flow-branch-result {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  border-radius: 10px;
  padding: 0.6rem 1.25rem;
  display: inline-block;
}

/* Individual result colors */
.flow-branch:nth-child(1) .flow-branch-result {
  color: var(--accent);
  background: linear-gradient(135deg, rgba(126, 180, 255, 0.1), rgba(126, 180, 255, 0.05));
  border: 1px solid rgba(126, 180, 255, 0.2);
}
.flow-branch:nth-child(2) .flow-branch-result {
  color: var(--accent-2);
  background: linear-gradient(135deg, rgba(167, 139, 250, 0.1), rgba(167, 139, 250, 0.05));
  border: 1px solid rgba(167, 139, 250, 0.2);
}
.flow-branch:nth-child(3) .flow-branch-result {
  color: var(--accent-3);
  background: linear-gradient(135deg, rgba(52, 211, 153, 0.1), rgba(52, 211, 153, 0.05));
  border: 1px solid rgba(52, 211, 153, 0.2);
}

/* ---------- Hub & Spoke (MCP Gateway) ---------- */

.hub-spoke {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.hub-center {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-bright);
  background: linear-gradient(135deg, rgba(126, 180, 255, 0.15), rgba(167, 139, 250, 0.1));
  border: 1px solid rgba(126, 180, 255, 0.3);
  border-radius: 50px;
  padding: 1rem 2.5rem;
  box-shadow: 0 0 40px var(--glow-blue), 0 0 80px var(--glow-purple);
  text-align: center;
}

.hub-spoke-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  width: 100%;
}

.spoke-node {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  text-align: center;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}

.spoke-node--blue {
  border-color: rgba(126, 180, 255, 0.2);
  color: var(--accent);
}

.spoke-node--purple {
  border-color: rgba(167, 139, 250, 0.2);
  color: var(--accent-2);
}

.spoke-node--green {
  border-color: rgba(52, 211, 153, 0.2);
  color: var(--accent-3);
}

/* ---------- Tree Columns (Memory Diagram) ---------- */

.tree-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.tree-panel-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 0.25rem;
}

.tree-panel-subtitle {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
  font-family: var(--font-mono);
}

/* File tree */
.file-tree {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.3;
}

.tree-item {
  padding: 0.35rem 0.75rem;
  border-left: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text-dim);
  position: relative;
}

.tree-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 12px;
  height: 1px;
  background: rgba(255, 255, 255, 0.06);
}

.tree-root {
  border-left: none;
  padding-left: 0;
}

.tree-root::before {
  display: none;
}

.tree-folder {
  color: var(--text);
  font-weight: 500;
}

.tree-file {
  padding-left: 1.5rem;
}

.tree-indent-2 {
  padding-left: 2.5rem;
  margin-left: 0.75rem;
}

.tree-indent-3 {
  padding-left: 3.5rem;
  margin-left: 1.5rem;
}

.tree-highlight {
  color: var(--accent);
  font-weight: 500;
}

.tree-accent {
  color: var(--accent-2);
}

/* ---------- MCP Note ---------- */

.diagram-mcp-note {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  text-align: center;
  margin-top: 1.25rem;
  opacity: 0.7;
  letter-spacing: 0.3px;
}

/* ---------- Memory Stack ---------- */

.memory-stack {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.memory-layer {
  padding: 1.5rem 2rem;
  border: 1px solid var(--border);
  position: relative;
}

.memory-layer + .memory-layer {
  border-top: none;
}

.memory-layer--top {
  border-radius: var(--card-radius) var(--card-radius) 0 0;
  background: linear-gradient(135deg, rgba(126, 180, 255, 0.08), rgba(126, 180, 255, 0.02));
  border-color: rgba(126, 180, 255, 0.2);
}

.memory-layer--mid {
  background: linear-gradient(135deg, rgba(167, 139, 250, 0.08), rgba(167, 139, 250, 0.02));
  border-color: rgba(167, 139, 250, 0.2);
}

.memory-layer--bottom {
  border-radius: 0 0 var(--card-radius) var(--card-radius);
  background: linear-gradient(135deg, rgba(52, 211, 153, 0.08), rgba(52, 211, 153, 0.02));
  border-color: rgba(52, 211, 153, 0.2);
}

.memory-layer-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 0.4rem;
}

.memory-layer--top .memory-layer-title { color: var(--accent); }
.memory-layer--mid .memory-layer-title { color: var(--accent-2); }
.memory-layer--bottom .memory-layer-title { color: var(--accent-3); }

.memory-layer-description {
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.6;
}

/* ---------- Capability Grid ---------- */

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.capability-card {
  padding: 1.25rem 1.5rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 14px;
  transition: border-color 0.3s;
}

.capability-card:hover {
  border-color: var(--border-hover);
}

.capability-card-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 0.4rem;
}

.capability-card-description {
  font-size: 0.82rem;
  color: var(--text);
  line-height: 1.55;
}

/* ---------- Diagram Description ---------- */

.diagram-description {
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.7;
  margin-top: 2rem;
  text-align: center;
  max-width: var(--prose-width);
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Section Intro ---------- */

.section-intro {
  margin-top: 1.5rem;
  margin-bottom: 0;
}

/* ---------- Use Case Grid ---------- */

.use-case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.use-case-wide {
  grid-column: 1 / -1;
}

/* ---------- Workflows Prose ---------- */

.workflows-prose {
  margin-top: 3rem;
}

.workflows-prose h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

.workflows-prose h3:first-child {
  margin-top: 0;
}

.workflows-prose p {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.75;
}

/* ---------- Stat Grid ---------- */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.stat-card {
  text-align: center;
  padding: var(--card-padding);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.stat-number {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.75rem;
}

.stat-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 0.4rem;
}

.stat-subtext {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.5;
}

.results-prose {
  margin-top: 3rem;
}

/* ---------- Download Grid ---------- */

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.download-card .card-title {
  font-size: 1.15rem;
}

.download-card .card-description {
  margin-bottom: 1.25rem;
}

.download-card .card-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-dim);
  opacity: 0.6;
}

/* ---------- Footer ---------- */

footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0;
  position: relative;
}

footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-2), transparent);
  opacity: 0.3;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
}

.footer-note {
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

/* ---------- Section Dividers ---------- */

.section + .section {
  border-top: 1px solid var(--border);
}

/* Gradient glow between sections */
.section + .section::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-2), transparent);
  opacity: 0.3;
}

/* ---------- Responsive: Tablet ---------- */

@media (max-width: 768px) {
  :root {
    --section-padding: 80px;
    --card-padding: 28px;
  }

  .hero-title {
    font-size: clamp(2rem, 8vw, 3rem);
    letter-spacing: -1px;
  }

  .section-title {
    font-size: clamp(1.3rem, 5vw, 1.8rem);
  }

  .card-grid,
  .use-case-grid,
  .download-grid {
    grid-template-columns: 1fr;
  }

  .flow-branches {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .nav-links {
    display: none;
  }

  .hero::before {
    width: 300px;
    height: 300px;
    top: 10%;
    right: -15%;
  }

  .tree-columns {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hub-spoke-row {
    grid-template-columns: 1fr;
  }

  .capability-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- Responsive: Mobile ---------- */

@media (max-width: 480px) {
  :root {
    --section-padding: 60px;
    --card-padding: 24px;
  }

  body {
    font-size: 1rem;
  }

  .hero-title {
    font-size: clamp(1.8rem, 9vw, 2.5rem);
  }

  .section-title {
    font-size: 1.3rem;
  }

  .container {
    padding: 0 1.25rem;
  }

  .nav-inner {
    padding: 0 1.25rem;
  }

  .diagram {
    padding: 1.5rem;
  }

  .flow-box {
    min-width: unset;
    width: 100%;
  }

  .flow-box--question {
    border-radius: 16px;
  }

  .capability-grid {
    grid-template-columns: 1fr;
  }

  .memory-layer {
    padding: 1.25rem 1.5rem;
  }
}