:root {
  --bg: #050608;
  --bg-card: #0d0f14;
  --bg-card-hover: #131722;
  --bg-subtle: #161a24;
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.18);
  --text-main: #f0f3f8;
  --text-muted: #8b949e;
  --text-faint: #4e5563;
  --brand: #f04324;
  --brand-glow: rgba(240, 67, 36, 0.22);
  --brand-light: #ff674c;
  --brand-cyan: #22d3ee;
  --brand-cyan-glow: rgba(34, 211, 238, 0.15);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

.ambient-glow {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.ambient-glow::before {
  content: '';
  position: absolute;
  top: -180px;
  left: 20%;
  width: 700px;
  height: 550px;
  background: radial-gradient(circle, var(--brand-glow) 0%, rgba(5, 6, 8, 0) 70%);
  filter: blur(80px);
}

.ambient-glow::after {
  content: '';
  position: absolute;
  top: 350px;
  right: 15%;
  width: 600px;
  height: 500px;
  background: radial-gradient(circle, var(--brand-cyan-glow) 0%, rgba(5, 6, 8, 0) 70%);
  filter: blur(100px);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Header & Nav */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(5, 6, 8, 0.75);
  border-bottom: 1px solid var(--border);
  height: 64px;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  position: relative;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-main);
  z-index: 1;
}

.logo-img {
  width: 28px;
  height: 28px;
}

.logo-text {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.nav-links {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
  z-index: 2;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  line-height: 1;
  transition: color 0.15s ease;
}

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

.nav-cta-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-github {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.15s ease;
}

.btn-github:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  background: #ffffff;
  color: #050608;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.15s ease;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
  background: #e5e5e5;
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.15s ease;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-hover);
}

/* Hero Section */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  border-radius: 9999px;
  background: rgba(240, 67, 36, 0.1);
  border: 1px solid rgba(240, 67, 36, 0.25);
  color: var(--brand-light);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.8rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 40%, var(--brand-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 32px;
}

.hero-subtext {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  color: var(--text-faint);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 40px;
}

/* Authentic Desktop Mockup Window */
.mockup-window {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  background: #000000;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.85), 0 0 50px rgba(240, 67, 36, 0.12);
  display: flex;
  flex-direction: column;
  text-align: left;
}

/* Native Title Bar */
.mockup-titlebar {
  height: 32px;
  background: #080808;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0;
  user-select: none;
}

.titlebar-left {
  width: 132px;
  flex-shrink: 0;
}

.titlebar-hint {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #666;
}

.titlebar-center {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  min-width: 0;
}

.titlebar-active-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 2px 10px;
  border-radius: 9999px;
  background: #121212;
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 11px;
  color: #ccc;
}

.session-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  color: #888;
}

.titlebar-win-controls {
  width: 132px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  height: 100%;
}

.win-btn {
  width: 44px;
  height: 100%;
  border: none;
  background: transparent;
  color: #999;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.12s ease;
}

.win-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.win-btn.win-close:hover {
  background: #e81123;
  color: #fff;
}

/* App Shell (Sidebar + Workspace) */
.mockup-app-shell {
  display: flex;
  height: 610px;
  background: #000;
  position: relative;
}

/* Sidebar */
.mockup-sidebar {
  width: 250px;
  flex-shrink: 0;
  background: #050505;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  padding: 10px 10px 8px 10px;
  user-select: none;
}

.sidebar-brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2px 4px 8px 4px;
}

.sidebar-brand-left {
  display: flex;
  align-items: center;
  gap: 7px;
}

.sidebar-crab-icon {
  width: 17px;
  height: 17px;
}

.sidebar-brand-name {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #fff;
}

.sidebar-brand-version {
  font-size: 10px;
  color: #666;
  font-family: var(--font-mono);
}

.sidebar-brand-actions {
  display: flex;
  gap: 4px;
}

.sidebar-icon-btn {
  background: transparent;
  border: none;
  color: #777;
  padding: 4px;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-icon-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.sidebar-action-row {
  margin: 6px 0 10px 0;
}

.sidebar-new-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: #ffffff;
  color: #000000;
  border: none;
  border-radius: 6px;
  padding: 7px 12px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s ease;
}

.sidebar-new-btn:hover {
  opacity: 0.92;
}

.sidebar-filter-area {
  margin-bottom: 8px;
}

.sidebar-search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.sidebar-search-box svg {
  position: absolute;
  left: 8px;
  color: #666;
  pointer-events: none;
}

.sidebar-search-box input {
  width: 100%;
  background: #0d0d0d;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 5px;
  padding: 5px 8px 5px 26px;
  font-size: 11px;
  color: #aaa;
  outline: none;
}

.sidebar-env-nav {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}

.env-chip {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  color: #777;
  cursor: pointer;
}

.env-chip.active {
  background: #181818;
  color: #fff;
  font-weight: 500;
}

.sidebar-tree {
  flex: 1;
  overflow-y: auto;
  margin: 6px 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.tree-node {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 8px;
  border-radius: 5px;
  cursor: pointer;
  transition: background 0.12s ease;
}

.tree-node:hover {
  background: rgba(255, 255, 255, 0.04);
}

.tree-icon {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #888;
  width: 14px;
  text-align: center;
  flex-shrink: 0;
}

.tree-details {
  flex: 1;
  min-width: 0;
}

.tree-title-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.tree-name {
  font-size: 12px;
  color: #ddd;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.env-tag {
  font-size: 9px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1px 4px;
  border-radius: 3px;
  color: #888;
}

.tree-sub {
  font-size: 10px;
  color: #666;
  font-family: var(--font-mono);
  display: block;
}

.tree-folder-group {
  margin-top: 2px;
}

.tree-folder-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 8px;
  color: #999;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
}

.folder-name {
  flex: 1;
}

.folder-count {
  font-size: 10px;
  color: #666;
  font-family: var(--font-mono);
}

.tree-folder-children {
  padding-left: 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-footer {
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.sidebar-footer-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  padding: 6px 10px;
  color: #ccc;
  font-size: 11px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.sidebar-footer-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.term-sym {
  font-family: var(--font-mono);
  font-weight: 600;
  margin-right: 6px;
}

.shortcut-kbd {
  font-size: 10px;
  background: #141414;
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 2px 5px;
  border-radius: 3px;
  color: #888;
}

/* Workspace Main Panel */
.mockup-workspace {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: #000;
  overflow: hidden;
  position: relative;
}

/* Tab Bar */
.workspace-tabs-bar {
  height: 34px;
  background: #080808;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  padding: 0 8px;
}

.workspace-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
}

.workspace-tab-plus {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  color: #888;
  font-size: 14px;
  cursor: pointer;
}

.workspace-tab-plus.active {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

/* Workspace Viewport */
.workspace-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  min-height: 0;
  overflow: hidden;
  position: relative;
}

/* Startup Hub Viewport */
.hub-container {
  flex: 1;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  position: relative;
  overflow-y: auto;
  text-align: center;
  box-sizing: border-box;
}

.hub-hero-mesh {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -60%);
  width: 480px;
  height: 320px;
  background: radial-gradient(circle, rgba(240, 67, 36, 0.18) 0%, rgba(0, 0, 0, 0) 70%);
  pointer-events: none;
  filter: blur(50px);
}

.hub-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hub-mascot-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin-bottom: 8px;
}

.hub-mascot-img {
  width: 84px;
  height: 84px;
  object-fit: contain;
  margin: 0 auto;
  display: block;
  filter: drop-shadow(0 6px 20px rgba(240, 67, 36, 0.45));
}

.hub-eyebrow {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: #777;
  font-family: var(--font-mono);
  display: block;
  margin-bottom: 10px;
  text-align: center;
  width: 100%;
}

.hub-heading {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.15;
  color: #ffffff;
  letter-spacing: -0.03em;
  margin-bottom: 10px;
  text-align: center;
  width: 100%;
}

.hub-description {
  font-size: 0.92rem;
  color: #888;
  margin-bottom: 20px;
  line-height: 1.5;
  text-align: center;
  width: 100%;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.hub-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
  width: 100%;
}

.hub-btn-white {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #ffffff;
  color: #000000;
  border: none;
  border-radius: 9999px;
  padding: 8px 20px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s ease;
}

.hub-btn-white:hover {
  opacity: 0.9;
}

.hub-btn-dark {
  display: inline-flex;
  align-items: center;
  background: #111;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #eee;
  border-radius: 9999px;
  padding: 8px 18px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.hub-btn-dark:hover {
  background: #181818;
  color: #fff;
}

/* 4 Bento Cards */
.hub-bento-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  text-align: left;
  margin-bottom: 22px;
}

.hub-card {
  background: #0a0c10;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 12px 14px;
  cursor: default;
  transition: all 0.15s ease;
}

.hub-card:hover {
  border-color: rgba(255, 255, 255, 0.18);
  background: #0e1117;
}

.hub-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 5px;
}

.hub-card-icon {
  font-family: var(--font-mono);
  font-size: 13px;
  color: #888;
}

.hub-card-badge {
  font-family: var(--font-mono);
  font-size: 9px;
  color: #666;
  background: rgba(255, 255, 255, 0.05);
  padding: 1px 6px;
  border-radius: 3px;
}

.hub-card-title {
  font-size: 12px;
  font-weight: 600;
  color: #eee;
  margin-bottom: 3px;
}

.hub-card-desc {
  font-size: 11px;
  color: #777;
  line-height: 1.4;
}

/* Hub Specs Bar */
.hub-specs-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  font-size: 10px;
  color: #666;
  flex-wrap: wrap;
}

.hub-spec-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ========================================================================= */
/* SECTIONS & PRODUCT FEATURES (CARDS STYLE)                                 */
/* ========================================================================= */
.section {
  padding: 100px 0;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}

.section-tag {
  color: var(--brand);
  font-size: 0.84rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 14px;
  color: #ffffff;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* Protocol Grid - 3 Rich Cards */
.protocol-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.protocol-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}

.protocol-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--brand-light);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: #ffffff;
}

.card-text {
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.card-features {
  list-style: none;
  border-top: 1px solid var(--border);
  padding-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.84rem;
  color: #abb3bf;
}

.card-features li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-features li::before {
  content: '✓';
  color: var(--brand);
  font-weight: bold;
}

/* Feature Grid 2x2 Bento Boxes */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  gap: 20px;
  transition: all 0.25s ease;
}

.feature-box:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.35);
}

.feature-box .box-icon {
  width: 44px;
  height: 44px;
  background: rgba(240, 67, 36, 0.1);
  border: 1px solid rgba(240, 67, 36, 0.22);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--brand);
}

.feature-box h4 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: #ffffff;
}

.feature-box p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

/* Architecture Crate Grid */
.crate-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 40px;
}

.crate-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  text-align: left;
  transition: all 0.2s ease;
}

.crate-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}

.crate-card code {
  color: var(--brand-light);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  display: block;
  margin-bottom: 8px;
}

.crate-card p {
  color: var(--text-muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

/* Terminal Code Box */
.terminal-code-box {
  background: #090a0f;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  max-width: 650px;
  margin: 40px auto 0;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  text-align: left;
  cursor: pointer;
}

.terminal-code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-faint);
  margin-bottom: 12px;
  font-size: 0.8rem;
}

.terminal-code-box code {
  color: #22d3ee;
  display: block;
  margin-bottom: 8px;
}

.terminal-code-box code .comment {
  color: #6b7280;
}

/* Download Section CTA */
.download-card {
  background: linear-gradient(180deg, var(--bg-card) 0%, rgba(240, 67, 36, 0.05) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

.download-card h3 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: #ffffff;
}

.download-card p {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 580px;
  margin: 0 auto 32px;
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 60px 0 40px;
  background: #030406;
  position: relative;
  z-index: 1;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 30px;
}

.footer-brand {
  max-width: 340px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-top: 12px;
  line-height: 1.6;
}

.footer-links-group {
  display: flex;
  gap: 50px;
  flex-wrap: wrap;
}

.footer-col h5 {
  font-size: 0.88rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.88rem;
  transition: color 0.15s ease;
}

.footer-col a:hover {
  color: var(--text-main);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-faint);
  flex-wrap: wrap;
  gap: 12px;
}

/* Responsive */
@media (max-width: 900px) {
  .mockup-sidebar { display: none; }
  .protocol-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .crate-grid { grid-template-columns: 1fr 1fr; }
  .hub-bento-grid { grid-template-columns: 1fr; }
  .hub-heading { font-size: 1.6rem; }
  .nav-links { display: none; }
}