/* amantech.dev – App color palette */
:root {
  /* Main palette */
  --color-primary: #6366F1;
  --color-primary-light: #818CF8;
  --color-primary-dark: #4F46E5;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F8F9FA;
  --color-text: #1A1A1A;
  --color-text-secondary: #6B7280;
  --color-text-muted: #9CA3AF;
  --color-success: #10B981;
  --color-error: #EF4444;
  --color-warning: #F59E0B;
  --color-info: #3B82F6;
  --color-border: #D1D5DB;
  --font-sans: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--color-primary-light);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 1.5rem;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .wrap {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

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

.nav a {
  color: var(--color-text-secondary);
  margin-left: 1.5rem;
  font-weight: 500;
}
.nav a:hover {
  color: var(--color-text);
}

/* Hero */
.hero {
  padding: 8rem 1.5rem 5rem;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.hero-app-icon {
  margin: 0 auto 1.25rem;
  display: block;
  text-align: center;
}

.hero-app-icon img {
  display: block;
  width: 120px;
  height: 120px;
  margin: 0 auto;
}

.hero-app-name {
  font-size: clamp(3.5rem, 10vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: #5F66ED;
}

.hero-app-name span {
  color: #5F66ED;
}

.hero h1 {
  font-size: clamp(1.75rem, 4.5vw, 2.65rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.hero .tagline {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  margin-bottom: 2.5rem;
}

/* Download buttons */
.download-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: transform var(--transition), background var(--transition), color var(--transition);
  font-family: inherit;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}
.btn-primary:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
}
.btn-primary:active {
  background: var(--color-primary-dark);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-border);
}
.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}
.btn-outline:active {
  border-color: var(--color-primary-dark);
  color: var(--color-primary-dark);
}

/* Features strip (optional) */
.features {
  padding: 4rem 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.features h2 {
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: 2rem;
  color: var(--color-text-secondary);
  font-weight: 600;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: border-color var(--transition), transform var(--transition);
}
.feature-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}
.feature-card p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

/* Footer */
.site-footer {
  padding: 2rem 1.5rem;
  text-align: center;
  border-top: 1px solid var(--color-border);
  margin-top: 4rem;
}

.site-footer p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}
.site-footer a {
  color: var(--color-text-secondary);
}
.site-footer a:hover {
  color: var(--color-primary);
}

/* Page (for privacy, etc.) */
.page {
  padding: 6rem 1.5rem 4rem;
  max-width: 720px;
  margin: 0 auto;
}

.page h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}
.page .subtitle {
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
}
.page h2 {
  font-size: 1.25rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}
.page p, .page ul {
  margin-bottom: 1rem;
  color: var(--color-text-secondary);
}
.page ul {
  padding-left: 1.5rem;
}

/* Utility */
.mt-1 { margin-top: 0.5rem; }
.mb-2 { margin-bottom: 2rem; }