/* ===== Reset & Base ===== */
:root {
  --bg-color: #0A0A0A;
  --surface-color: #1A1A1A;
  --surface-hover: #2A2A2A;
  --text-primary: #F5F5F5;
  --text-secondary: #A3A3A3;
  --border-color: rgba(255, 255, 255, 0.1);
  --accent-color: #E2E8F0;
  --accent-glow: rgba(255, 255, 255, 0.05);
  --brand-gradient: linear-gradient(135deg, #FFF 0%, #A3A3A3 100%);
  
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 24px;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-main);
  background-color: var(--bg-color);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

body {
  line-height: 1.5;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Ambient Background ===== */
.ambient-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.glow {
  position: absolute;
  width: 50vw;
  height: 50vw;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.15;
}

.glow-1 {
  top: -20%;
  right: -10%;
  background: radial-gradient(circle, #ffffff, transparent 60%);
}

.glow-2 {
  top: 40%;
  left: -20%;
  background: radial-gradient(circle, #a3a3a3, transparent 60%);
  opacity: 0.1;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 20px 0;
  z-index: 100;
  transition: all 0.3s ease;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.logo-icon {
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a:not(.btn-small) {
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.nav-links a:not(.btn-small):hover {
  color: var(--text-primary);
}

/* ===== Buttons ===== */
.btn-small {
  background: var(--surface-color);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.btn-small:hover {
  background: var(--surface-hover);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 1rem;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--text-primary);
  color: var(--bg-color);
  box-shadow: 0 4px 14px rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
  background: #E5E5E5;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.15);
}

.btn-secondary {
  background: var(--surface-color);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--surface-hover);
}

.apple-icon {
  width: 18px;
  height: 18px;
}

/* ===== Hero Section ===== */
.hero {
  padding: 160px 0 100px;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-content {
  max-width: 540px;
}

.chip {
  display: inline-block;
  padding: 4px 12px;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-weight: 500;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.text-gradient {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-note {
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  opacity: 0.7;
}

/* ===== Mockups / Images ===== */
.window-mockup {
  background: #111;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.1);
  overflow: hidden;
  position: relative;
  width: 100%;
}

.mockup-header {
  height: 48px;
  background: #171717;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 8px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #333;
}
.dot:nth-child(1) { background: #FF5A52; }
.dot:nth-child(2) { background: #E6C029; }
.dot:nth-child(3) { background: #53CC28; }

.placeholder-img {
  width: 100%;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  background: repeating-linear-gradient(
    45deg,
    #131313,
    #131313 10px,
    #1a1a1a 10px,
    #1a1a1a 20px
  );
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
  padding: 20px;
}

.placeholder-img.tall {
  aspect-ratio: 3/4;
}

/* ===== Features ===== */
.features {
  padding: 120px 0;
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 80px;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}

.feature-card {
  padding: 32px;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: transform 0.3s ease, background 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  background: rgba(30, 30, 30, 0.8);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  color: var(--text-primary);
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ===== Showcase Section ===== */
.showcase {
  padding: 120px 0;
  background: #0d0d0d;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.showcase-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.showcase-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.showcase-content p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.check-list {
  list-style: none;
}

.check-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 1.05rem;
  color: var(--text-primary);
}

.check-list svg {
  width: 20px;
  height: 20px;
  color: var(--text-primary);
  opacity: 0.8;
}

/* ===== CTA Section ===== */
.cta {
  padding: 120px 0;
}

.cta-box {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 80px 40px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
}

.cta-box h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-box p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 32px;
  max-width: 500px;
}

.btn-large {
  padding: 16px 32px;
  font-size: 1.1rem;
}

.cta-note {
  margin-top: 24px !important;
  font-size: 0.9rem !important;
  margin-bottom: 0 !important;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 60px 0 40px;
  background: #050505;
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 60px;
  flex-wrap: wrap;
  gap: 40px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 12px;
  max-width: 250px;
}

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

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 32px;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero-container, .showcase-container {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .hero {
    text-align: center;
    padding-top: 120px;
  }
  
  .hero-content {
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .hero-actions {
    justify-content: center;
  }

  .showcase-content {
    order: 1; /* For reverse layout on mobile if needed, but here it's fine above image */
  }
}

@media (max-width: 600px) {
  .hero-title {
    font-size: 2.25rem;
  }
  
  .section-header h2, .cta-box h2, .showcase-content h2 {
    font-size: 2rem;
  }
  
  .nav-links {
    display: none; /* simple mobile nav override */
  }
  
  .cta-box {
    padding: 60px 24px;
  }
  
  .footer-container {
    flex-direction: column;
  }
}