/* ==========================================================================
   InclusiChat Web — Design System & Stylesheet
   Palette: Soft Slate, Calming Indigo-Lavender, Security Emerald
   ========================================================================== */

:root {
  /* Harmonious, Trustworthy Palette (Soft on the eyes, avoids aggressive neon) */
  --bg-main: #0B0F17;
  --bg-surface: #121824;
  --bg-surface-raised: #1A2234;
  --bg-surface-border: rgba(255, 255, 255, 0.08);

  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;

  --accent-primary: #6366F1;
  --accent-primary-hover: #4F46E5;
  --accent-soft-lavender: #8B5CF6;
  --accent-emerald: #10B981;
  --accent-emerald-soft: rgba(16, 185, 129, 0.12);
  --accent-amber: #F59E0B;

  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.25);
  --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.2);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 23, 0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--bg-surface-border);
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-badge-logo {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-soft-lavender));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: var(--shadow-glow);
}

.brand-text {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-item {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-item:hover {
  color: var(--text-primary);
}

.nav-btn-action {
  background: var(--accent-primary);
  color: #fff;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.2s;
}

.nav-btn-action:hover {
  background: var(--accent-primary-hover);
  transform: translateY(-1px);
}

/* Hero Section */
.hero-section {
  padding: 80px 0 60px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 56px;
  align-items: center;
}

.security-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.25);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: #A5B4FC;
  margin-bottom: 24px;
}

.security-chip-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 36px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent-primary);
  color: #fff;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: var(--shadow-glow);
  transition: all 0.2s;
}

.btn-primary:hover {
  background: var(--accent-primary-hover);
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-surface-raised);
  color: var(--text-primary);
  border: 1px solid var(--bg-surface-border);
  padding: 14px 24px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

.trust-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--bg-surface-border);
}

.trust-stat-item {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.trust-stat-divider {
  width: 1px;
  height: 28px;
  background: var(--bg-surface-border);
}

/* Mockup Card (App Preview) */
.hero-mockup-wrap {
  display: flex;
  justify-content: center;
}

.app-mockup-card {
  width: 100%;
  max-width: 360px;
  background: var(--bg-surface);
  border: 1px solid var(--bg-surface-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.mockup-header {
  padding: 16px 20px;
  background: var(--bg-surface-raised);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--bg-surface-border);
}

.mockup-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mockup-avatar {
  width: 36px;
  height: 36px;
  background: var(--accent-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.mockup-user-info {
  display: flex;
  flex-direction: column;
}

.mockup-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.verified-check {
  color: #38BDF8;
  font-size: 0.85rem;
}

.mockup-status {
  font-size: 0.75rem;
  color: var(--accent-emerald);
}

.mockup-actions {
  display: flex;
  gap: 12px;
  font-size: 1.1rem;
}

.mockup-chat-body {
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 240px;
}

.mockup-bubble {
  max-width: 82%;
  padding: 10px 14px;
  font-size: 0.85rem;
  border-radius: 16px;
  line-height: 1.4;
}

.mockup-bubble p {
  margin-bottom: 4px;
}

.mockup-bubble.incoming {
  align-self: flex-start;
  background: var(--bg-surface-raised);
  border-bottom-left-radius: 4px;
  color: var(--text-primary);
}

.mockup-bubble.outgoing {
  align-self: flex-end;
  background: #4F46E5;
  border-bottom-right-radius: 4px;
  color: #fff;
}

.bubble-time {
  font-size: 0.7rem;
  color: var(--text-muted);
  display: block;
  text-align: right;
}

.mockup-bubble.outgoing .bubble-time {
  color: rgba(255, 255, 255, 0.7);
}

.bubble-check {
  color: #38BDF8;
}

.mockup-footer {
  padding: 12px 16px;
  background: var(--bg-surface-raised);
  display: flex;
  align-items: center;
  gap: 10px;
  border-top: 1px solid var(--bg-surface-border);
}

.mockup-input {
  flex: 1;
  font-size: 0.82rem;
  color: var(--text-muted);
  background: var(--bg-surface);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
}

.mockup-send {
  font-size: 1rem;
  cursor: pointer;
}

/* Features Section */
.features-section {
  padding: 90px 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--bg-surface-border);
  border-bottom: 1px solid var(--bg-surface-border);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-primary);
  margin-bottom: 12px;
}

.section-tag-emerald {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-emerald);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-main);
  border: 1px solid var(--bg-surface-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform 0.2s, border-color 0.2s;
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: rgba(99, 102, 241, 0.3);
}

.feature-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.icon-purple { background: rgba(99, 102, 241, 0.15); color: #818CF8; }
.icon-emerald { background: rgba(16, 185, 129, 0.15); color: #34D399; }
.icon-blue { background: rgba(56, 189, 248, 0.15); color: #38BDF8; }
.icon-amber { background: rgba(245, 158, 11, 0.15); color: #FBBF24; }

.feature-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

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

/* Camouflage Section */
.camouflage-section {
  padding: 100px 0;
}

.camouflage-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: center;
}

.calculator-card {
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  background: #181D26;
  border: 1px solid var(--bg-surface-border);
  border-radius: var(--radius-xl);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.calc-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.calc-badge {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.calc-display {
  background: #0E1219;
  border-radius: var(--radius-md);
  padding: 18px 16px;
  text-align: right;
  font-family: monospace;
  font-size: 2rem;
  font-weight: 700;
  color: #F8FAFC;
  margin-bottom: 18px;
  letter-spacing: 2px;
}

.calc-keyboard {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.calc-key {
  height: 48px;
  border-radius: var(--radius-sm);
  background: #232A37;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1.1rem;
  color: #F1F5F9;
  user-select: none;
  cursor: pointer;
  transition: background 0.1s;
}

.calc-key:hover {
  background: #2E384A;
}

.calc-key.op {
  background: #1C2330;
  color: var(--text-secondary);
}

.calc-key.op-accent {
  background: #F59E0B;
  color: #fff;
}

.calc-key.wide {
  grid-column: span 2;
}

.calc-key.equal-btn {
  background: var(--accent-primary);
  color: #fff;
}

.camouflage-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 28px;
}

.camouflage-points li {
  display: flex;
  gap: 16px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.point-bullet {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent-emerald-soft);
  color: var(--accent-emerald);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 0.85rem;
  flex-shrink: 0;
}

/* Baremetal Academy Section */
.baremetal-section {
  padding: 40px 0 90px;
}

.baremetal-banner {
  background: linear-gradient(135deg, #131A29, #1E293B);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: var(--radius-xl);
  padding: 56px 48px;
  position: relative;
  overflow: hidden;
}

.baremetal-badge {
  display: inline-block;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  color: #C7D2FE;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.baremetal-title {
  font-family: var(--font-heading);
  font-size: 2.3rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.baremetal-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin-bottom: 40px;
}

.baremetal-pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-bottom: 36px;
}

.pillar-box {
  background: rgba(11, 15, 23, 0.6);
  border: 1px solid var(--bg-surface-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.pillar-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.pillar-heading {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.pillar-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.baremetal-footer-callout {
  padding: 16px 20px;
  background: rgba(16, 185, 129, 0.1);
  border-radius: var(--radius-md);
  border: 1px solid rgba(16, 185, 129, 0.25);
  font-size: 0.92rem;
  color: #D1FAE5;
}

/* Download Section */
.download-section {
  padding: 80px 0 100px;
  background: var(--bg-surface);
  border-top: 1px solid var(--bg-surface-border);
}

.download-box {
  text-align: center;
}

.download-header {
  max-width: 620px;
  margin: 0 auto 40px;
}

.download-actions-card {
  max-width: 680px;
  margin: 0 auto;
  background: var(--bg-main);
  border: 1px solid var(--bg-surface-border);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-card);
}

.download-meta-info {
  display: flex;
  justify-content: space-around;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--bg-surface-border);
  margin-bottom: 32px;
}

.meta-item {
  display: flex;
  flex-direction: column;
}

.meta-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.meta-val {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.btn-download-main {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  background: var(--accent-primary);
  color: #fff;
  padding: 18px 36px;
  border-radius: var(--radius-lg);
  text-decoration: none;
  box-shadow: var(--shadow-glow);
  transition: all 0.2s;
  margin-bottom: 32px;
}

.btn-download-main:hover {
  background: var(--accent-primary-hover);
  transform: translateY(-2px);
}

.btn-download-text {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.btn-small-text {
  font-size: 0.78rem;
  opacity: 0.85;
}

.btn-large-text {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
}

.install-steps {
  text-align: left;
  background: var(--bg-surface-raised);
  padding: 20px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--bg-surface-border);
}

.steps-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.steps-list {
  padding-left: 20px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Footer */
.footer {
  padding: 60px 0 40px;
  background: var(--bg-main);
  border-top: 1px solid var(--bg-surface-border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 40px;
}

.footer-brand {
  max-width: 420px;
}

.footer-logo-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  display: block;
  margin-bottom: 8px;
}

.footer-tagline {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.footer-copy {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.footer-links-group {
  display: flex;
  gap: 64px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col-title {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.footer-col a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--accent-primary);
}

/* Responsive Breakpoints */
@media (max-width: 900px) {
  .hero-grid,
  .camouflage-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .baremetal-banner {
    padding: 36px 24px;
  }

  .footer-content {
    flex-direction: column;
  }
}

@media (max-width: 600px) {
  .hero-title {
    font-size: 1.85rem;
  }

  .nav-menu .nav-item {
    display: none;
  }

  .trust-stats {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .trust-stat-divider {
    display: none;
  }
}