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

:root {
  --bg: #050d1a;
  --fg: #e2eaf6;
  --card: #091524;
  --primary: #00c8e8;
  --primary-fg: #020810;
  --secondary: #0d1f35;
  --secondary-fg: #a8c0d8;
  --muted: #0d1f35;
  --muted-fg: #6b8aaa;
  --accent: #00e676;
  --accent-fg: #020810;
  --destructive: #ff5252;
  --border: rgba(0, 200, 232, 0.12);
  --radius: 0.25rem;
  --chart-1: #00c8e8;
  --chart-2: #00e676;
  --chart-3: #f59e0b;
  --chart-4: #8b5cf6;
  --chart-5: #ff6b6b;
  --font-display: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Monaco', monospace;
}

html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ===== Utility Classes ===== */
.container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }
.font-display { font-family: var(--font-display); }
.font-mono { font-family: var(--font-mono); }

/* ===== Section Label ===== */
.section-label {
  display: flex; align-items: center; gap: 0.5rem; margin-bottom: 1rem;
}
.section-label span.line {
  display: inline-block; width: 1.5rem; height: 1px; background: var(--primary);
}
.section-label span.text {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.2em;
  color: var(--primary); text-transform: uppercase;
}

/* ===== Buttons ===== */
.btn-primary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.625rem 1.5rem; background: var(--primary); color: var(--primary-fg);
  font-family: var(--font-mono); font-size: 0.8rem; border: none; cursor: pointer;
  transition: opacity 0.2s; text-decoration: none;
}
.btn-primary:hover { opacity: 0.9; }

.btn-outline {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.625rem 1.5rem; border: 1px solid var(--border);
  color: var(--fg); font-family: var(--font-mono); font-size: 0.8rem;
  background: transparent; cursor: pointer;
  transition: all 0.2s; text-decoration: none;
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.btn-ghost {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.625rem 1.5rem; border: 1px solid var(--primary);
  color: var(--primary); font-family: var(--font-mono); font-size: 0.8rem;
  background: transparent; cursor: pointer;
  transition: all 0.2s;
}
.btn-ghost:hover { background: var(--primary); color: var(--primary-fg); }

/* ===== Nav ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  border-bottom: 1px solid var(--border);
  background: rgba(5, 13, 26, 0.9); backdrop-filter: blur(12px);
}
.header-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 1.5rem;
  height: 3.5rem; display: flex; align-items: center; justify-content: space-between;
}
.logo-area { display: flex; align-items: center; gap: 0.5rem; }
.logo-icon {
  width: 1.5rem; height: 1.5rem; position: relative;
  display: flex; align-items: center; justify-content: center;
}
.logo-icon::before {
  content: ''; position: absolute; width: 1.5rem; height: 1.5rem;
  border: 1px solid rgba(0,200,232,0.6); transform: rotate(45deg);
}
.logo-icon svg { position: relative; z-index: 1; }
.logo-text {
  font-family: var(--font-display); font-weight: 700; font-size: 0.875rem;
  letter-spacing: 0.1em; color: var(--fg);
}
.logo-divider { color: var(--muted-fg); font-size: 0.75rem; margin: 0 0.25rem; }
.logo-sub { font-size: 0.7rem; color: var(--muted-fg); }

.nav-links { display: flex; align-items: center; gap: 1.5rem; }
.nav-link {
  font-family: var(--font-mono); font-size: 0.85rem; letter-spacing: 0.05em;
  color: var(--muted-fg); background: none; border: none; cursor: pointer;
  transition: color 0.2s; padding: 0.25rem 0;
}
.nav-link:hover, .nav-link.active { color: var(--primary); }

.nav-actions { display: flex; align-items: center; gap: 0.75rem; }
.menu-toggle {
  display: none; background: none; border: none; color: var(--muted-fg); cursor: pointer; padding: 0.25rem;
}

/* Mobile Nav */
.mobile-nav {
  display: none; border-top: 1px solid var(--border); background: var(--card);
  padding: 1rem 1.5rem;
}
.mobile-nav .nav-link { display: block; width: 100%; text-align: left; padding: 0.625rem 0; font-size: 0.9rem; }

/* ===== Hero ===== */
.hero {
  position: relative; padding-top: 3.5rem; min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center; overflow: hidden;
}
.hero-grid {
  position: absolute; inset: 0; opacity: 0.04; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,200,232,1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,200,232,1) 1px, transparent 1px);
  background-size: 40px 40px;
}
.hero-glow {
  position: absolute; top: 33%; left: 50%; transform: translate(-50%, -50%);
  width: 600px; height: 400px; border-radius: 50%; opacity: 0.1;
  background: radial-gradient(ellipse, #00c8e8 0%, transparent 70%);
  pointer-events: none;
}
.hero-content {
  position: relative; max-width: 1280px; margin: 0 auto;
  padding: 5rem 1.5rem; width: 100%;
}
.hero-grid-2 {
  display: grid; grid-template-columns: 1fr; gap: 4rem; align-items: center;
}

.hero-title {
  font-family: var(--font-display); font-size: clamp(2rem, 5vw, 3.75rem);
  font-weight: 700; line-height: 1.1; margin-bottom: 1.5rem; letter-spacing: -0.02em;
}
.hero-title .gradient {
  background: linear-gradient(135deg, #00c8e8, #00e676);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 0.95rem; color: var(--muted-fg); line-height: 1.7;
  margin-bottom: 2rem; max-width: 32rem;
}
.hero-btns { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 2.5rem; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.hero-stat {
  border-left: 2px solid var(--primary); padding-left: 0.75rem;
}
.hero-stat-val { font-size: 1.5rem; font-weight: 700; color: var(--primary); font-family: var(--font-mono); }
.hero-stat-label { font-size: 0.7rem; color: var(--muted-fg); margin-top: 0.25rem; }

/* Dashboard Widget */
.dashboard {
  position: relative; border: 1px solid var(--border); background: var(--card); padding: 1rem;
}
.dashboard-header {
  display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.75rem;
}
.dashboard-live {
  display: flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted-fg);
}
.live-dot { width: 0.5rem; height: 0.5rem; border-radius: 50%; background: var(--accent); animation: pulse 2s infinite; }
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
.dashboard-location { font-family: var(--font-mono); font-size: 0.7rem; color: var(--primary); }
.dashboard-cards {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.5rem; margin-bottom: 1rem;
}
.dash-card {
  padding: 0.625rem; border: 1px solid var(--border); background: var(--secondary);
}
.dash-card-icon { margin-bottom: 0.375rem; }
.dash-card-val { font-family: var(--font-mono); font-size: 0.8rem; font-weight: 600; }
.dash-card-unit { font-family: var(--font-mono); font-size: 0.65rem; color: var(--muted-fg); }
.dash-card-label { font-size: 0.7rem; color: var(--muted-fg); margin-top: 0.25rem; }
.dashboard-chart-wrap { height: 180px; }
.dashboard-legend {
  display: flex; align-items: center; gap: 1rem; margin-top: 0.5rem;
}
.dashboard-legend-item { display: flex; align-items: center; gap: 0.375rem; }
.dashboard-legend-line { width: 0.75rem; height: 1px; }
.dashboard-legend-text { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted-fg); }

.floating-badge {
  position: absolute; bottom: -1rem; right: -1rem;
  border: 1px solid rgba(0, 230, 118, 0.3); background: var(--card);
  padding: 0.625rem 1rem; box-shadow: 0 4px 24px rgba(0,0,0,0.3);
  display: flex; align-items: center; gap: 0.5rem;
}
.floating-badge svg { color: var(--accent); }
.floating-badge span { font-family: var(--font-mono); font-size: 0.7rem; color: var(--accent); }

/* Partners strip */
.partners-strip {
  margin-top: 2.5rem; padding-top: 2rem; border-top: 1px solid var(--border);
  display: flex; flex-wrap: wrap; align-items: center; gap: 1rem;
}
.partners-label { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted-fg); white-space: nowrap; }
.partner-tag {
  font-family: var(--font-mono); font-size: 0.7rem; padding: 0.25rem 0.75rem;
  border: 1px solid var(--border); color: var(--muted-fg); cursor: default;
  transition: all 0.2s;
}
.partner-tag:hover { border-color: var(--primary); color: var(--primary); }

/* ===== Sections ===== */
.section { padding: 6rem 0; }
.section-alt { background: rgba(13, 31, 53, 0.2); }
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-header .section-label { justify-content: center; }
.section-title {
  font-family: var(--font-display); font-size: 1.875rem; font-weight: 700;
  margin-top: 0.5rem;
}
.section-subtitle {
  color: var(--muted-fg); font-size: 0.85rem; margin-top: 0.75rem;
  max-width: 36rem; margin-left: auto; margin-right: auto;
}

/* ===== Pain Points ===== */
.pain-grid {
  display: grid; grid-template-columns: 1fr; gap: 4rem;
}
.pain-item {
  display: flex; align-items: flex-start; gap: 0.75rem;
  padding: 0.75rem; border: 1px solid var(--border); transition: background 0.2s;
}
.pain-item:hover { background: var(--secondary); }
.pain-item-icon { margin-top: 0.125rem; flex-shrink: 0; }
.pain-item-content span.title { font-size: 0.875rem; font-weight: 500; color: var(--fg); }
.pain-item-content span.desc { font-size: 0.75rem; color: var(--muted-fg); margin-left: 0.5rem; }

.chart-box {
  border: 1px solid var(--border); background: var(--card); padding: 1.5rem;
}
.chart-box-header {
  display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem;
}
.chart-box-title { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted-fg); }
.chart-box-badge {
  font-family: var(--font-mono); font-size: 0.7rem; color: var(--accent);
  padding: 0.125rem 0.5rem; border: 1px solid rgba(0,230,118,0.3);
}
.chart-box-chart { height: 200px; }
.chart-box-legend { display: flex; gap: 1rem; margin-top: 0.5rem; }
.chart-box-legend-item { display: flex; align-items: center; gap: 0.375rem; }
.chart-box-legend-swatch { width: 0.75rem; height: 0.5rem; }
.chart-box-legend-text { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted-fg); }

.cost-chart { margin-top: 1.5rem; }
.cost-bar-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; }
.cost-bar-label { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted-fg); width: 5rem; text-align: right; }
.cost-bar-track { flex: 1; height: 0.375rem; background: var(--secondary); border-radius: 999px; overflow: hidden; }
.cost-bar-fill { height: 100%; border-radius: 999px; transition: width 1s ease; }
.cost-bar-val { font-family: var(--font-mono); font-size: 0.7rem; font-weight: 600; width: 2rem; }

/* ===== Architecture ===== */
.arch-wrap { max-width: 720px; margin: 0 auto; }
.arch-grid, #archCards {
  display: flex; flex-direction: column; gap: 0; position: relative;
}
.arch-connector { display: none; }
.arch-card {
  display: flex; align-items: center; gap: 1.5rem;
  border: 1px solid var(--border); background: var(--card);
  padding: 1rem 1.5rem; transition: all 0.3s;
  position: relative;
}
.arch-card + .arch-card { border-top: none; }
.arch-card::after {
  content: ''; position: absolute; left: 2.2rem; bottom: -0.5rem;
  width: 2px; height: 0.5rem; background: var(--border);
}
.arch-card:last-of-type::after { display: none; }
.arch-card:hover { border-color: rgba(0,200,232,0.5); background: rgba(0,200,232,0.03); }
.arch-card-header {
  display: flex; align-items: center; gap: 0; flex-shrink: 0; width: 5rem;
}
.arch-card-num {
  font-family: var(--font-mono); font-size: 1.25rem; font-weight: 700;
  width: 2.5rem; text-align: center;
}
.arch-card-divider { display: none; }
.arch-card-body { flex: 1; }
.arch-card-title { font-family: var(--font-display); font-size: 1rem; font-weight: 700; }
.arch-card-subtitle { font-size: 0.7rem; color: var(--muted-fg); margin-bottom: 0.5rem; }
.arch-card-list {
  list-style: none; display: flex; flex-wrap: wrap; gap: 0.375rem 1rem;
}
.arch-card-list li {
  display: flex; align-items: center; gap: 0.375rem;
  font-size: 0.75rem; color: var(--muted-fg);
}
.arch-dot { width: 0.25rem; height: 0.25rem; border-radius: 50%; flex-shrink: 0; }
.arch-chevron { display: none; }
@media (min-width: 640px) {
  .arch-card { padding: 1.25rem 2rem; }
  .arch-card-header { width: 6rem; }
}

/* ===== Module Cards ===== */
.modules-grid {
  display: grid; grid-template-columns: 1fr; gap: 1rem;
}
.module-card {
  position: relative; padding: 1.5rem; border: 1px solid var(--border);
  background: var(--card); cursor: default; transition: all 0.3s;
}
.module-card:hover { border-color: rgba(0,200,232,0.4); }
.module-card-topbar {
  position: absolute; top: 0; left: 0; width: 100%; height: 1px; opacity: 0.6;
}
.module-card-topbar-hover {
  position: absolute; top: 0; left: 0; width: 0; height: 1px;
  transition: width 0.5s;
}
.module-card:hover .module-card-topbar-hover { width: 100%; }
.module-card-head { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 1rem; }
.module-card-head-left { display: flex; align-items: center; gap: 0.75rem; }
.module-card-icon { padding: 0.5rem; border-radius: var(--radius); }
.module-card-title-area {}
.module-card-name { font-size: 0.875rem; font-weight: 600; color: var(--fg); font-family: var(--font-display); }
.module-card-sub { font-size: 0.7rem; color: var(--muted-fg); margin-top: 0.125rem; }
.module-card-idx { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted-fg); }
.module-card-desc { font-size: 0.8rem; color: var(--muted-fg); line-height: 1.6; margin-bottom: 1.25rem; }
.module-card-metrics {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem;
  padding-top: 1rem; border-top: 1px solid var(--border);
}
.module-metric { text-align: center; }
.module-metric-val { font-family: var(--font-mono); font-size: 0.8rem; font-weight: 600; }
.module-metric-label { font-size: 0.65rem; color: var(--muted-fg); margin-top: 0.25rem; }

/* ===== Scenario Tabs ===== */
.scenario-tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.5rem; margin-bottom: 2.5rem; }
.scenario-tab {
  display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem 1.25rem;
  border: 1px solid rgba(0,200,232,0.12); font-family: var(--font-mono); font-size: 0.8rem;
  background: transparent; color: var(--muted-fg); cursor: pointer; transition: all 0.2s;
}
.scenario-tab.active {
  border-color: var(--primary); color: var(--primary);
  background: rgba(0,200,232,0.08);
}
.scenario-content { display: none; }
.scenario-content.active { display: grid; grid-template-columns: 1fr; gap: 2rem; }
.scenario-img-wrap {
  position: relative; border: 1px solid var(--border); overflow: hidden;
  min-height: 320px;
}
.scenario-img {
  width: 100%; height: 320px; object-fit: cover; opacity: 0.6; display: block;
}
.scenario-img-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, var(--bg), rgba(5,13,26,0.4), transparent);
}
.scenario-img-info {
  position: absolute; bottom: 0; left: 0; padding: 1.5rem;
}
.scenario-img-info h3 { font-size: 1.25rem; font-weight: 700; font-family: var(--font-display); color: var(--fg); margin-bottom: 0.5rem; }
.scenario-img-tag {
  font-family: var(--font-mono); font-size: 0.7rem; border: 1px solid rgba(0,200,232,0.3);
  color: var(--primary); padding: 0.125rem 0.5rem;
}
.scenario-detail { border: 1px solid var(--border); background: var(--card); padding: 1.5rem; }
.scenario-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; margin-bottom: 1.5rem; }
.scenario-kpi { text-align: center; padding: 0.75rem; border: 1px solid var(--border); }
.scenario-kpi-val { font-family: var(--font-mono); font-size: 1.1rem; font-weight: 700; color: var(--primary); }
.scenario-kpi-label { font-size: 0.7rem; color: var(--muted-fg); margin-top: 0.25rem; }
.scenario-features-title {
  font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted-fg);
  margin-bottom: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em;
}
.scenario-features { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; }
.scenario-feature {
  display: flex; align-items: center; gap: 0.5rem; font-size: 0.8rem; color: var(--fg);
}
.scenario-feature svg { color: var(--accent); flex-shrink: 0; }
.scenario-detail-btn {
  margin-top: 1.5rem; width: 100%; display: flex; align-items: center; justify-content: center;
  gap: 0.5rem; padding: 0.625rem; border: 1px solid var(--primary); color: var(--primary);
  font-family: var(--font-mono); font-size: 0.8rem; background: transparent; cursor: pointer;
  transition: all 0.2s;
}
.scenario-detail-btn:hover { background: var(--primary); color: var(--primary-fg); }

/* ===== Tech Stack ===== */
.tech-grid { display: grid; grid-template-columns: 1fr; gap: 4rem; }
.tech-advantage {
  margin-top: 2rem; padding: 1rem; border: 1px solid rgba(0,230,118,0.2);
  background: rgba(0,230,118,0.05);
}
.tech-advantage-title { font-family: var(--font-mono); font-size: 0.7rem; color: var(--accent); margin-bottom: 0.5rem; }
.tech-advantage-item { display: flex; align-items: center; gap: 0.5rem; padding: 0.25rem 0; }
.tech-advantage-dot { width: 0.25rem; height: 0.25rem; background: var(--accent); border-radius: 50%; }
.tech-advantage-text { font-size: 0.75rem; color: var(--fg); }

.tech-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
.tech-card {
  padding: 1.25rem; border: 1px solid var(--border); background: var(--card);
  transition: all 0.3s;
}
.tech-card:hover { border-color: rgba(0,200,232,0.4); }
.tech-card-icon-wrap {
  padding: 0.5rem; border: 1px solid var(--border); display: inline-block;
  margin-bottom: 0.75rem; transition: border-color 0.3s;
}
.tech-card:hover .tech-card-icon-wrap { border-color: rgba(0,200,232,0.4); }
.tech-card-name { font-family: var(--font-display); font-size: 0.875rem; font-weight: 700; margin-bottom: 0.5rem; }
.tech-card-desc { font-size: 0.7rem; color: var(--muted-fg); line-height: 1.6; }

/* ===== Security ===== */
.security-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.security-card {
  border: 1px solid var(--border); background: var(--card); padding: 1.5rem;
  transition: all 0.3s;
}
.security-card:hover { border-color: rgba(0,200,232,0.4); }
.security-card-head { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 1.25rem; }
.security-card-icon {
  padding: 0.5rem; border: 1px solid var(--border); display: inline-block;
}
.security-card-badge {
  font-family: var(--font-mono); font-size: 0.7rem; padding: 0.125rem 0.5rem; border: 1px solid;
}
.security-card-title { font-family: var(--font-display); font-size: 1rem; font-weight: 700; margin-bottom: 1rem; }
.security-card-list { list-style: none; }
.security-card-list li {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.8rem; color: var(--muted-fg); margin-bottom: 0.5rem;
}

/* ===== CTA ===== */
.cta { position: relative; overflow: hidden; }
.cta-grid {
  position: absolute; inset: 0; opacity: 0.03; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,200,232,1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,200,232,1) 1px, transparent 1px);
  background-size: 32px 32px;
}
.cta-glow {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 80% 60% at 50% 100%, rgba(0,200,232,0.06) 0%, transparent 70%);
}
.cta-title {
  font-family: var(--font-display); font-size: clamp(1.875rem, 4vw, 3rem); font-weight: 700; margin-bottom: 1rem;
}
.cta-desc { color: var(--muted-fg); font-size: 0.95rem; margin-bottom: 2.5rem; max-width: 36rem; margin-left: auto; margin-right: auto; }
.cta-btns { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 1rem; margin-bottom: 3rem; }
.cta-stats { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.cta-stat { text-align: center; }
.cta-stat-val { font-family: var(--font-mono); font-size: 1.25rem; font-weight: 700; color: var(--primary); }
.cta-stat-label { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted-fg); margin-top: 0.25rem; }

/* ===== Footer ===== */
.footer { border-top: 1px solid var(--border); padding: 2rem 0; background: var(--card); }
.footer-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 1.5rem;
  display: flex; flex-direction: column; align-items: center; gap: 1rem;
}
.footer-links { display: flex; align-items: center; gap: 1.5rem; }
.footer-link { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted-fg); cursor: pointer; transition: color 0.2s; }
.footer-link:hover { color: var(--primary); }
.footer-copy { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted-fg); }

/* ===== Responsive ===== */
@media (min-width: 640px) {
  .hero-grid-2 { grid-template-columns: 1fr 1fr; }
  .modules-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .nav-links { display: flex; }
  .nav-actions .btn-ghost { display: inline-flex; }
  .menu-toggle { display: none; }
  .pain-grid { grid-template-columns: 1fr 1fr; }
  .security-grid { grid-template-columns: repeat(3, 1fr); }
  .tech-grid { grid-template-columns: 1fr 2fr; }
  .tech-cards { grid-template-columns: repeat(3, 1fr); }
  .footer-inner { flex-direction: row; justify-content: space-between; }
}

@media (min-width: 1024px) {
  .modules-grid { grid-template-columns: repeat(3, 1fr); }
  .scenario-content.active { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
  .nav-links { display: none; }
  .nav-actions .btn-ghost { display: none; }
  .menu-toggle { display: block; }
  .mobile-nav.open { display: block; }
  .dashboard-cards { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { gap: 1rem; }
}