/* Base Styles & Design Tokens for DoseRx */
:root {
  --primary-color: #006686;
  --primary-dark: #004d66;
  --primary-light: #33859e;
  --accent-color: #00a896;
  --text-color: #1e293b;
  --text-light: #64748b;
  --bg-color: #ffffff;
  --bg-light: #f8fafc;
  --bg-dark: #0f172a;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --shadow: 0 10px 25px -5px rgba(0, 102, 134, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text-color);
  line-height: 1.6;
  background-color: var(--bg-color);
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-color);
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}

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

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

.logo i {
  font-size: 1.8rem;
  color: var(--primary-color);
}

.logo h1 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary-dark);
}

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

.nav-links li a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-color);
}

.nav-links li a:hover {
  color: var(--primary-color);
}

.btn-download-nav {
  background-color: var(--primary-color);
  color: #ffffff !important;
  padding: 8px 18px;
  border-radius: 8px;
  font-weight: 600 !important;
}

.btn-download-nav:hover {
  background-color: var(--primary-dark);
  transform: translateY(-1px);
}

/* Hero Section */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 2.75rem;
  color: var(--primary-dark);
  margin-bottom: 16px;
}

.hero .tagline {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 16px;
}

.hero .description {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--primary-color);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(0, 102, 134, 0.35);
}

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

.btn-secondary {
  background-color: #ffffff;
  color: var(--primary-dark);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--bg-light);
  transform: translateY(-2px);
}

/* Features Grid */
.features {
  padding: 90px 0;
  background-color: var(--bg-color);
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 60px;
}

.section-header h2 {
  font-size: 2.2rem;
  color: var(--text-color);
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-light);
  font-size: 1.05rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.feature-card {
  background-color: #ffffff;
  padding: 32px 28px;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary-light);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background-color: rgba(0, 102, 134, 0.1);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

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

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

/* Footer */
footer {
  background-color: var(--bg-dark);
  color: #cbd5e1;
  padding: 60px 0 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h2 {
  color: #ffffff;
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.footer-brand p {
  color: #94a3b8;
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer-links h3 {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 16px;
}

.footer-links ul li {
  margin-bottom: 10px;
}

.footer-links ul li a {
  color: #94a3b8;
  font-size: 0.9rem;
}

.footer-links ul li a:hover {
  color: #ffffff;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid #334155;
  font-size: 0.85rem;
  color: #64748b;
}

/* Legal / Privacy Content Pages */
.legal-page {
  padding: 130px 0 80px;
}

.legal-content {
  max-width: 850px;
  margin: 0 auto;
  background: #ffffff;
  padding: 40px;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
}

.legal-content h1 {
  font-size: 2.2rem;
  color: var(--primary-dark);
  margin-bottom: 8px;
}

.legal-content .effective-date {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 28px;
  display: block;
}

.legal-content h2 {
  font-size: 1.35rem;
  color: var(--primary-color);
  margin: 28px 0 12px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 6px;
}

.legal-content p, .legal-content li {
  color: #334155;
  font-size: 0.98rem;
  line-height: 1.7;
  margin-bottom: 12px;
}

.legal-content ul {
  list-style: disc;
  margin-left: 24px;
  margin-bottom: 16px;
}

@media (max-width: 768px) {
  .hero h1 { font-size: 2.2rem; }
  .footer-content { grid-template-columns: 1fr; gap: 30px; }
  .nav-links { display: none; }
  .legal-content { padding: 24px 16px; }
}