/* ShepherdPass — High-tech, modern, safe, secure */

:root {
  --color-bg: #0a0e17;
  --color-bg-elevated: #111827;
  --color-surface: #1a2234;
  --color-border: #2d3a52;
  --color-text: #e8ecf4;
  --color-text-muted: #8b9bb8;
  --color-accent: #22c4b8;
  --color-accent-dim: rgba(34, 196, 184, 0.15);
  --color-accent-hover: #2dd9cc;
  --font-sans: 'Outfit', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 2rem;
  background: linear-gradient(to bottom, var(--color-bg) 0%, transparent 100%);
}

.nav {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo-icon {
  color: var(--color-accent);
  font-size: 1rem;
}

.nav-cta {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-accent);
  text-decoration: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: var(--transition);
}

.nav-cta:hover {
  background: var(--color-accent-dim);
  border-color: var(--color-accent);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 6rem 2rem 4rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, var(--color-accent-dim) 0%, transparent 50%),
    linear-gradient(180deg, transparent 0%, var(--color-bg) 100%);
  pointer-events: none;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.15;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 20%, transparent 70%);
}

.hero-content {
  position: relative;
  max-width: 600px;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  margin-bottom: 1.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-accent);
  background: var(--color-accent-dim);
  border: 1px solid rgba(34, 196, 184, 0.3);
  border-radius: 100px;
  letter-spacing: 0.02em;
}

.hero-title {
  margin: 0 0 1.25rem;
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.hero-title .highlight {
  color: var(--color-accent);
}

.hero-subtitle {
  margin: 0 0 2rem;
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 520px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-bg);
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
}

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

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

/* Hero visual */
.hero-visual {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
}

.phone-mockup {
  width: 280px;
  height: 560px;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: 36px;
  padding: 12px;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.4);
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: var(--color-bg-elevated);
  border-radius: 28px;
  padding: 2rem 1.5rem;
}

.mockup-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.mockup-header {
  display: flex;
  gap: 6px;
}

.mockup-dot {
  width: 8px;
  height: 8px;
  background: var(--color-border);
  border-radius: 50%;
}

.mockup-message {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem;
  background: var(--color-accent-dim);
  border: 1px solid rgba(34, 196, 184, 0.25);
  border-radius: var(--radius);
}

.mockup-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.mockup-code {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-accent);
}

.mockup-code code {
  font-weight: 500;
  padding: 0.15rem 0.4rem;
  background: rgba(34, 196, 184, 0.2);
  border-radius: 4px;
}

/* How it works */
.how-it-works {
  padding: 6rem 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.section-title {
  margin: 0 0 3rem;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 600;
  text-align: center;
  letter-spacing: -0.02em;
}

.steps {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.step {
  flex: 1;
  text-align: center;
  padding: 1.5rem;
}

.step-number {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.step h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  font-weight: 600;
}

.step p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.step-connector {
  flex: 0 0 40px;
  height: 2px;
  margin-top: 2.5rem;
  background: linear-gradient(to right, var(--color-border), transparent);
}

/* Features */
.features {
  padding: 6rem 2rem;
  background: var(--color-bg-elevated);
}

.features .section-title {
  margin-bottom: 3rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.feature-card {
  padding: 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.feature-card:hover {
  border-color: rgba(34, 196, 184, 0.4);
  box-shadow: 0 0 0 1px rgba(34, 196, 184, 0.2);
}

.feature-icon {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  font-weight: 600;
}

.feature-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* CTA */
.cta {
  padding: 6rem 2rem;
  text-align: center;
}

.cta-content {
  max-width: 560px;
  margin: 0 auto;
}

.cta h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.cta p {
  margin: 0 0 2rem;
  color: var(--color-text-muted);
}

/* Footer */
.footer {
  padding: 2rem;
  text-align: center;
  border-top: 1px solid var(--color-border);
}

.footer p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Responsive */
@media (max-width: 900px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding-top: 5rem;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-visual {
    position: relative;
    right: auto;
    top: auto;
    transform: none;
    margin-top: 3rem;
  }

  .steps {
    flex-direction: column;
    align-items: center;
  }

  .step-connector {
    width: 2px;
    height: 24px;
    margin: 0;
    background: linear-gradient(to bottom, var(--color-border), transparent);
  }
}

@media (max-width: 600px) {
  .header {
    padding: 1rem;
  }

  .hero,
  .how-it-works,
  .features,
  .cta {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .phone-mockup {
    width: 240px;
    height: 480px;
  }
}