:root {
  --bg-dark: #0b0f19;
  --bg-card: rgba(30, 41, 59, 0.7);
  --bg-card-hover: rgba(30, 41, 59, 0.95);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(56, 189, 248, 0.4);
  
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-glow: rgba(37, 99, 235, 0.35);
  --accent: #38bdf8;
  --accent-green: #22c55e;
  --accent-orange: #f97316;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-sub: #64748b;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  
  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-main);
}

body {
  position: relative;
  overflow-x: hidden;
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ─ Glow Orbs ─────────────────────────────────────────────── */
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  z-index: -1;
  pointer-events: none;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.18) 0%, rgba(56, 189, 248, 0.05) 70%);
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.12) 0%, transparent 70%);
  top: 600px;
  right: -100px;
}

/* ─ Navbar ─────────────────────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(11, 15, 25, 0.75);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
}

.logo-img {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 15px var(--primary-glow);
}

.logo-text {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

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

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

/* ─ Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn .icon {
  width: 18px;
  height: 18px;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
}

.btn-lg {
  padding: 14px 26px;
  font-size: 15px;
}

.btn-xl {
  padding: 16px 32px;
  font-size: 16px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
  color: #fff;
  box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #3b82f6 0%, var(--primary) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(37, 99, 235, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

/* ─ Badges ─────────────────────────────────────────────────── */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 20px;
}

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

/* ─ Hero Section ───────────────────────────────────────────── */
.hero {
  padding: 70px 0 90px;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-title {
  font-size: 46px;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.gradient-text {
  background: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 32px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 44px;
}

.hero-metrics {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

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

.metric-val {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
}

.metric-lbl {
  font-size: 12px;
  color: var(--text-sub);
}

.metric-divider {
  width: 1px;
  height: 32px;
  background: var(--border-color);
}

/* ─ Hero Mockup Visual ─────────────────────────────────────── */
.app-mockup-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(20px);
}

.mockup-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
}

.mockup-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.mockup-dot.red { background: #ef4444; }
.mockup-dot.yellow { background: #eab308; }
.mockup-dot.green { background: #22c55e; }

.mockup-title {
  font-size: 12px;
  color: var(--text-sub);
  margin-left: 8px;
  font-weight: 600;
}

.mockup-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.mockup-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.mockup-card:hover {
  border-color: var(--border-focus);
  transform: translateX(4px);
}

.mockup-card.highlight {
  border-color: rgba(56, 189, 248, 0.3);
  background: rgba(56, 189, 248, 0.05);
}

.card-icon-box {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: rgba(56, 189, 248, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.card-icon-box svg {
  width: 20px;
  height: 20px;
}

.card-icon-box.orange {
  background: rgba(249, 115, 22, 0.1);
}

.card-icon-box.green {
  background: rgba(34, 197, 94, 0.1);
}

.mockup-card h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 2px;
}

.mockup-card p {
  font-size: 12px;
  color: var(--text-muted);
}

/* ─ Section Header ─────────────────────────────────────────── */
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px;
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 15px;
  color: var(--text-muted);
}

/* ─ Features ───────────────────────────────────────────────── */
.features {
  padding: 80px 0;
  border-top: 1px solid var(--border-color);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 30px;
  transition: all 0.25s ease;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
  transform: translateY(-4px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(37, 99, 235, 0.12);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ─ How It Works ───────────────────────────────────────────── */
.how-it-works {
  padding: 80px 0;
  background: rgba(15, 23, 42, 0.4);
  border-top: 1px solid var(--border-color);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  position: relative;
}

.step-number {
  font-size: 32px;
  font-weight: 900;
  color: rgba(56, 189, 248, 0.3);
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ─ Installation & Download ────────────────────────────────── */
.installation {
  padding: 90px 0;
}

.install-box {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.95) 100%);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.install-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 36px;
}

.install-header h2 {
  font-size: 28px;
  font-weight: 800;
  margin: 10px 0 6px;
}

.install-header p {
  color: var(--text-muted);
  font-size: 15px;
}

.install-cta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  flex-shrink: 0;
}

.file-info {
  font-size: 12px;
  color: var(--text-sub);
}

.install-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 36px;
}

.inst-step {
  display: flex;
  gap: 16px;
}

.inst-num {
  width: 32px;
  height: 32px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

.inst-step h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}

.inst-step p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

.inst-step code {
  background: rgba(255, 255, 255, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 12px;
  color: var(--accent);
}

/* ─ Footer ─────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
  background: rgba(6, 9, 17, 0.8);
}

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

.logo-img-sm {
  width: 24px;
  height: 24px;
  border-radius: 4px;
}

.logo-text-sm {
  font-size: 16px;
  font-weight: 700;
}

.footer-desc {
  font-size: 12px;
  color: var(--text-sub);
  margin-top: 6px;
}

.footer-right p {
  font-size: 13px;
  color: var(--text-sub);
}

/* ─ Responsive ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-metrics {
    justify-content: center;
  }

  .features-grid,
  .steps-grid,
  .install-steps {
    grid-template-columns: 1fr;
  }

  .install-header {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .install-cta {
    align-items: center;
  }

  .nav-links {
    display: none;
  }
}