/* ============================================
   AI TABLET BUILDER — STYLES
   Theme: Tech Innovation (Dark Navy + Teal)
   Fonts: Syne (display) + DM Mono + Inter
   ============================================ */

:root {
  --bg: #0A1628;
  --bg2: #0f1e35;
  --bg3: #1E3A5F;
  --surface: #162540;
  --surface2: #1a2d4a;
  --border: rgba(0, 212, 170, 0.15);
  --border2: rgba(255,255,255,0.08);
  --teal: #00D4AA;
  --teal-dim: rgba(0, 212, 170, 0.12);
  --teal-glow: rgba(0, 212, 170, 0.25);
  --blue: #4FC3F7;
  --orange: #FF9F1C;
  --purple: #A78BFA;
  --green: #4ADE80;
  --yellow: #FDE68A;
  --red: #F87171;
  --text: #E8F4F8;
  --text-dim: #8BA8C4;
  --text-muted: #4A6A8A;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-teal: 0 0 30px rgba(0, 212, 170, 0.15);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: var(--teal); text-decoration: none; transition: opacity 0.2s; }
a:hover { opacity: 0.8; }

/* ============ NAV ============ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--teal);
}
.nav-icon { width: 20px; height: 20px; stroke: var(--teal); }
.nav-links {
  display: flex;
  gap: 1.5rem;
}
.nav-links a {
  font-size: 0.85rem;
  color: var(--text-dim);
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--teal); opacity: 1; }

/* ============ HERO ============ */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  padding: 100px 4rem 4rem;
  max-width: 1280px;
  margin: 0 auto;
  position: relative;
}
.hero-bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,212,170,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,170,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}
.hero-content { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--teal-dim);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 0.4rem 1rem;
  font-size: 0.78rem;
  color: var(--teal);
  font-family: 'DM Mono', monospace;
  margin-bottom: 1.5rem;
}
.hero-badge i { width: 14px; height: 14px; stroke: var(--teal); }
.hero-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.25rem;
  color: var(--text);
}
.accent { color: var(--teal); }
.hero-sub {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 520px;
  margin-bottom: 2rem;
  line-height: 1.7;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.stat { text-align: center; }
.stat-num {
  display: block;
  font-family: 'Syne', sans-serif;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--teal);
  line-height: 1;
}
.stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: 'DM Mono', monospace;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border2);
}
.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--teal);
  color: var(--bg);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  transition: all 0.2s;
  font-family: 'Syne', sans-serif;
}
.btn-primary i { width: 16px; height: 16px; stroke: var(--bg); }
.btn-primary:hover { background: #00f0c0; opacity: 1; transform: translateY(-1px); box-shadow: var(--shadow-teal); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--text-dim);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border2);
  transition: all 0.2s;
}
.btn-ghost i { width: 16px; height: 16px; stroke: var(--text-dim); }
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); opacity: 1; }

/* Tablet Mockup */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 1;
}
.tablet-mockup {
  width: 320px;
  background: var(--surface);
  border-radius: 24px;
  border: 2px solid var(--border);
  box-shadow: var(--shadow), var(--shadow-teal);
  overflow: hidden;
  animation: float 4s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.tablet-screen {
  background: #050d1a;
  padding: 1.5rem;
  font-family: 'DM Mono', monospace;
  font-size: 0.78rem;
  line-height: 1.8;
  min-height: 280px;
}
.terminal-line { display: block; }
.t-green { color: var(--green); }
.t-yellow { color: var(--yellow); }
.t-cyan { color: var(--teal); }
.t-dim { color: var(--text-muted); }
.t-blink {
  color: var(--teal);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
.tablet-chin {
  background: var(--surface);
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-top: 1px solid var(--border2);
}
.tablet-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--border2);
}

/* ============ SECTIONS ============ */
.section { padding: 6rem 2rem; }
.dark-section {
  background: var(--bg2);
  border-top: 1px solid var(--border2);
  border-bottom: 1px solid var(--border2);
}
.container { max-width: 1280px; margin: 0 auto; }

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}
.section-header.light h2,
.section-header.light p { color: var(--text); }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--teal-dim);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 0.3rem 0.9rem;
  font-size: 0.75rem;
  color: var(--teal);
  font-family: 'DM Mono', monospace;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.section-tag i { width: 13px; height: 13px; stroke: var(--teal); }
.section-tag.light { background: rgba(0,212,170,0.1); }
.section-header h2 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 0.75rem;
}
.section-header p {
  font-size: 1rem;
  color: var(--text-dim);
  max-width: 600px;
  margin: 0 auto;
}

/* ============ REALITY GRID ============ */
.reality-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.reality-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  border: 1px solid var(--border2);
}
.reality-card.good { border-color: rgba(74, 222, 128, 0.2); }
.reality-card.warn { border-color: rgba(251, 191, 36, 0.2); }
.reality-card.info { border-color: rgba(0, 212, 170, 0.2); }
.reality-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}
.good .reality-icon { background: rgba(74, 222, 128, 0.1); }
.good .reality-icon i { stroke: var(--green); width: 20px; height: 20px; }
.warn .reality-icon { background: rgba(251, 191, 36, 0.1); }
.warn .reality-icon i { stroke: var(--yellow); width: 20px; height: 20px; }
.info .reality-icon { background: var(--teal-dim); }
.info .reality-icon i { stroke: var(--teal); width: 20px; height: 20px; }
.reality-card h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.reality-card ul { list-style: none; }
.reality-card ul li {
  font-size: 0.85rem;
  color: var(--text-dim);
  padding: 0.3rem 0;
  border-bottom: 1px solid var(--border2);
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}
.reality-card ul li::before { content: "→"; color: var(--teal); flex-shrink: 0; }
.reality-card ul li:last-child { border-bottom: none; }

/* ============ PERFORMANCE TABLE ============ */
.perf-table-wrap {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border2);
}
.table-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.table-title i { width: 18px; height: 18px; stroke: var(--teal); }
.table-title.light { color: var(--text); }
.table-scroll { overflow-x: auto; }
.perf-table, .bom-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.perf-table th, .bom-table th {
  background: var(--bg3);
  color: var(--teal);
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.75rem 1rem;
  text-align: left;
  white-space: nowrap;
}
.perf-table td, .bom-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border2);
  color: var(--text-dim);
  vertical-align: middle;
}
.perf-table tr:hover td, .bom-table tr:hover td {
  background: rgba(0,212,170,0.03);
}
.highlight-row td { background: rgba(0,212,170,0.04); }
.bom-total-row td {
  background: var(--bg3);
  color: var(--text);
  font-weight: 600;
  border-top: 2px solid var(--teal);
}
.table-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
  font-family: 'DM Mono', monospace;
}
.chip {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  font-family: 'DM Mono', monospace;
  white-space: nowrap;
}
.chip-blue { background: rgba(79, 195, 247, 0.15); color: var(--blue); }
.chip-orange { background: rgba(255, 159, 28, 0.15); color: var(--orange); }
.chip-green { background: rgba(74, 222, 128, 0.15); color: var(--green); }
.chip-purple { background: rgba(167, 139, 250, 0.15); color: var(--purple); }
.good-text { color: var(--green); font-weight: 600; }
.warn-text { color: var(--yellow); font-weight: 600; }

/* ============ TIERS ============ */
.tiers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: start;
}
.tier-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  border: 1px solid var(--border2);
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
}
.tier-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.featured-tier {
  border-color: var(--teal);
  box-shadow: var(--shadow-teal);
}
.featured-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--teal);
  color: var(--bg);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.9rem;
  border-radius: 100px;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  white-space: nowrap;
  font-family: 'Syne', sans-serif;
}
.featured-badge i { width: 12px; height: 12px; stroke: var(--bg); }
.tier-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.tier-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-family: 'DM Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.tier-budget { background: rgba(79, 195, 247, 0.15); color: var(--blue); }
.tier-mid { background: rgba(0, 212, 170, 0.15); color: var(--teal); }
.tier-pro { background: rgba(167, 139, 250, 0.15); color: var(--purple); }
.tier-price {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text);
}
.tier-name {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}
.tier-name i { width: 20px; height: 20px; stroke: var(--teal); }
.tier-name h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
}
.tier-desc {
  font-size: 0.83rem;
  color: var(--text-dim);
  margin-bottom: 1.25rem;
  line-height: 1.6;
}
.tier-specs { margin-bottom: 1.25rem; }
.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border2);
  font-size: 0.82rem;
  gap: 0.5rem;
}
.spec-row:last-child { border-bottom: none; }
.spec-label {
  color: var(--text-muted);
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem;
  flex-shrink: 0;
}
.spec-val {
  color: var(--text);
  text-align: right;
  font-size: 0.82rem;
}
.tier-pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
.pros, .cons {
  background: var(--surface2);
  border-radius: var(--radius);
  padding: 0.75rem;
}
.pc-title {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  font-family: 'DM Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.pros .pc-title { color: var(--green); }
.cons .pc-title { color: var(--red); }
.pros .pc-title i { width: 13px; height: 13px; stroke: var(--green); }
.cons .pc-title i { width: 13px; height: 13px; stroke: var(--red); }
.pc-item {
  font-size: 0.78rem;
  color: var(--text-dim);
  padding: 0.2rem 0;
  border-bottom: 1px solid var(--border2);
}
.pc-item:last-child { border-bottom: none; }

/* ============ BOM ============ */
.bom-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.bom-tab {
  background: var(--surface);
  border: 1px solid var(--border2);
  color: var(--text-dim);
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  font-family: 'Inter', sans-serif;
}
.bom-tab:hover { border-color: var(--teal); color: var(--teal); }
.bom-tab.active {
  background: var(--teal);
  border-color: var(--teal);
  color: var(--bg);
}
.bom-content { display: none; }
.bom-content.active { display: block; }
.bom-total-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg3);
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid var(--border2);
  border-bottom: none;
}
.bom-total {
  color: var(--teal);
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  font-weight: 800;
}
.bom-table {
  border: 1px solid var(--border2);
  border-radius: 0 0 var(--radius) var(--radius);
  overflow: hidden;
}
.bom-table td:first-child {
  color: var(--text-muted);
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem;
  width: 30px;
}
.bom-table td strong { color: var(--text); }
.bom-table a { color: var(--teal); font-size: 0.8rem; }

/* ============ SOFTWARE ============ */
.software-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.software-step {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  border: 1px solid var(--border2);
  display: flex;
  gap: 1.25rem;
}
.step-num {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--teal);
  opacity: 0.3;
  line-height: 1;
  flex-shrink: 0;
  width: 48px;
}
.step-content h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.step-tier-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}
.tier-tag {
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-family: 'DM Mono', monospace;
  font-weight: 500;
}
.tier-tag.t1 { background: rgba(79, 195, 247, 0.15); color: var(--blue); }
.tier-tag.t2 { background: rgba(0, 212, 170, 0.15); color: var(--teal); }
.tier-tag.t3 { background: rgba(167, 139, 250, 0.15); color: var(--purple); }
.tier-tag.all { background: rgba(74, 222, 128, 0.15); color: var(--green); }
.step-content p {
  font-size: 0.83rem;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
  line-height: 1.6;
}
.code-block {
  background: #050d1a;
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-dim);
  line-height: 1.8;
  overflow-x: auto;
}
.code-comment { color: var(--text-muted); }

.models-table-wrap {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border2);
}
.light-table th { background: var(--bg); }
.light-table td { color: var(--text-dim); }

/* ============ BUY SECTION ============ */
.buy-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.buy-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  border: 1px solid var(--border2);
  position: relative;
  transition: transform 0.2s;
}
.buy-card:hover { transform: translateY(-3px); }
.buy-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.7rem;
  border-radius: 100px;
  margin-bottom: 0.75rem;
  font-family: 'DM Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.buy-best { background: rgba(0,212,170,0.15); color: var(--teal); }
.buy-value { background: rgba(74,222,128,0.15); color: var(--green); }
.buy-portable { background: rgba(79,195,247,0.15); color: var(--blue); }
.buy-rugged { background: rgba(167,139,250,0.15); color: var(--purple); }
.buy-card h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.buy-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: 'DM Mono', monospace;
  margin-bottom: 1rem;
}
.buy-specs {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}
.buy-spec {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-dim);
}
.buy-spec i { width: 14px; height: 14px; stroke: var(--teal); flex-shrink: 0; }
.buy-desc {
  font-size: 0.83rem;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 1rem;
}
.buy-price {
  font-family: 'Syne', sans-serif;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 0.4rem;
}
.buy-where {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: 'DM Mono', monospace;
}
.bvb-table-wrap {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border2);
}

/* ============ TIMELINE ============ */
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.timeline-tier {
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border2);
}
.timeline-tier-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  font-size: 0.85rem;
  font-weight: 700;
  font-family: 'Syne', sans-serif;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.t1-header { background: rgba(79, 195, 247, 0.1); border-bottom: 1px solid rgba(79,195,247,0.2); }
.t2-header { background: rgba(0, 212, 170, 0.1); border-bottom: 1px solid rgba(0,212,170,0.2); }
.t3-header { background: rgba(167, 139, 250, 0.1); border-bottom: 1px solid rgba(167,139,250,0.2); }
.timeline-total {
  font-size: 0.75rem;
  font-family: 'DM Mono', monospace;
  color: var(--text-dim);
  font-weight: 400;
}
.timeline-phases { padding: 1.25rem; }
.phase {
  display: flex;
  gap: 0.75rem;
  padding-bottom: 0.75rem;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--border2);
  position: relative;
}
.phase.last { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.phase-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
  flex-shrink: 0;
  margin-top: 6px;
}
.phase-content { display: flex; flex-direction: column; gap: 0.15rem; }
.phase-content strong { font-size: 0.82rem; color: var(--text); }
.phase-content span { font-size: 0.75rem; color: var(--text-muted); font-family: 'DM Mono', monospace; }

/* Sourcing */
.sourcing-grid { margin-top: 2rem; }
.source-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.25rem;
}
.source-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.25rem;
  border: 1px solid var(--border2);
  transition: border-color 0.2s;
}
.source-card:hover { border-color: var(--teal); }
.source-name {
  font-family: 'Syne', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.source-desc {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.5;
  margin-bottom: 0.5rem;
}
.source-url {
  font-size: 0.75rem;
  color: var(--teal);
  font-family: 'DM Mono', monospace;
}

/* ============ FOOTER ============ */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border2);
  padding: 3rem 2rem;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  text-align: center;
}
.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  color: var(--teal);
  margin-bottom: 1rem;
}
.footer-logo i { width: 18px; height: 18px; stroke: var(--teal); }
.footer-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer-links a {
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--teal); opacity: 1; }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; padding: 100px 2rem 4rem; }
  .hero-visual { display: none; }
  .tiers-grid { grid-template-columns: 1fr; }
  .reality-grid { grid-template-columns: 1fr; }
  .timeline-grid { grid-template-columns: 1fr; }
  .buy-grid { grid-template-columns: 1fr; }
  .software-grid { grid-template-columns: 1fr; }
  .source-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero-stats { gap: 1rem; }
  .source-cards { grid-template-columns: 1fr; }
  .tier-pros-cons { grid-template-columns: 1fr; }
  .software-step { flex-direction: column; }
  .step-num { font-size: 1.5rem; width: auto; }
}