/* ============================================
   Genoxidil Static CSS - Design System
   ============================================ */

/* CSS Variables - Color Palette */
:root {
  --background: 0 0% 100%;
  --foreground: 0 0% 0%;
  --card: 0 0% 100%;
  --card-foreground: 0 0% 0%;
  --popover: 0 0% 100%;
  --popover-foreground: 0 0% 0%;
  --primary: 205 74% 47%;
  --primary-foreground: 0 0% 100%;
  --secondary: 20 100% 45%;
  --secondary-foreground: 0 0% 100%;
  --muted: 205 74% 96%;
  --muted-foreground: 0 0% 0%;
  --accent: 105 50% 51%;
  --accent-foreground: 0 0% 100%;
  --destructive: 0 84.2% 60.2%;
  --destructive-foreground: 210 40% 98%;
  --border: 214.3 31.8% 91.4%;
  --input: 214.3 31.8% 91.4%;
  --ring: 222.2 84% 4.9%;
  --radius: 0.5rem;
}

/* Reset and Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
  min-height: 100vh;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

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

button {
  cursor: pointer;
  font-family: inherit;
}

/* ============================================
   Typography
   ============================================ */

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
}

h2 {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.3;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
}

h4 {
  font-size: 1.25rem;
  font-weight: 600;
}

p {
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  h1 { font-size: 3.5rem; }
  h2 { font-size: 2.5rem; }
  h3 { font-size: 1.875rem; }
}

/* ============================================
   Layout
   ============================================ */

.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 768px) {
  .container {
    padding: 0 2rem;
  }
}

.grid {
  display: grid;
  gap: 2rem;
}

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 768px) {
  .grid-cols-2, .grid-cols-3 {
    grid-template-columns: 1fr;
  }
}

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.flex-col {
  flex-direction: column;
}

.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }

/* ============================================
   Colors & Backgrounds
   ============================================ */

.bg-white { background-color: hsl(var(--background)); }
.bg-muted { background-color: hsl(var(--muted)); }
.bg-primary { background-color: hsl(var(--primary)); }
.bg-secondary { background-color: hsl(var(--secondary)); }
.bg-accent { background-color: hsl(var(--accent)); }
.bg-card { background-color: hsl(var(--card)); }
.bg-gray-800 { background-color: #1f2937; }
.bg-gray-50 { background-color: #f9fafb; }

.text-primary { color: hsl(var(--primary)); }
.text-secondary { color: hsl(var(--secondary)); }
.text-accent { color: hsl(var(--accent)); }
.text-muted { color: hsl(var(--muted-foreground)); }
.text-white { color: white; }
.text-foreground { color: hsl(var(--foreground)); }
.text-gray-100 { color: #f3f4f6; }
.text-gray-300 { color: #d1d5db; }
.text-gray-400 { color: #9ca3af; }
.text-gray-500 { color: #6b7280; }
.text-gray-600 { color: #4b5563; }
.text-gray-900 { color: #111827; }

.bg-gradient-primary {
  background: linear-gradient(135deg, hsl(var(--primary)) 0%, hsl(var(--accent)) 100%);
}

.bg-gradient-hero {
  background: linear-gradient(to bottom right, hsl(var(--primary) / 0.1), hsl(var(--secondary) / 0.1));
}

/* ============================================
   Header
   ============================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: hsl(var(--background) / 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  z-index: 50;
  border-bottom: 1px solid hsl(var(--border));
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
}

.header-logo img {
  height: 3rem;
  width: auto;
}

.header-nav {
  display: none;
  align-items: center;
  gap: 2rem;
}

@media (min-width: 768px) {
  .header-nav {
    display: flex;
  }
}

.header-nav a {
  color: hsl(var(--foreground));
  font-weight: 500;
  transition: color 0.2s;
}

.header-nav a:hover {
  color: hsl(var(--primary));
}

/* Mobile Menu */
.mobile-menu-btn {
  display: flex;
  background: none;
  border: none;
  padding: 0.5rem;
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1rem;
  border-top: 1px solid hsl(var(--border));
}

.mobile-nav.active {
  display: flex;
}

.mobile-nav a {
  padding: 0.5rem 0;
  color: hsl(var(--foreground));
  font-weight: 500;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius);
  border: none;
  transition: all 0.2s;
  text-decoration: none;
}

.btn-primary {
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
}

.btn-primary:hover {
  background-color: hsl(var(--primary) / 0.9);
}

.btn-secondary {
  background-color: hsl(var(--secondary));
  color: hsl(var(--secondary-foreground));
}

.btn-secondary:hover {
  background-color: hsl(var(--secondary) / 0.9);
}

.btn-accent {
  background-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
}

.btn-accent:hover {
  background-color: hsl(var(--accent) / 0.9);
}

.btn-outline {
  background: transparent;
  border: 2px solid hsl(var(--secondary));
  color: hsl(var(--secondary));
}

.btn-outline:hover {
  background-color: hsl(var(--secondary));
  color: hsl(var(--secondary-foreground));
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

/* ============================================
   Cards
   ============================================ */

.card {
  background-color: hsl(var(--card));
  border-radius: 1rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  padding: 1.5rem;
  transition: box-shadow 0.2s;
}

.card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.card-lg {
  padding: 2rem;
  border-radius: 1.5rem;
}

/* ============================================
   Sections
   ============================================ */

section {
  padding: 5rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  margin-bottom: 1rem;
}

.section-title p {
  max-width: 48rem;
  margin: 0 auto;
  color: hsl(var(--muted-foreground));
  font-size: 1.25rem;
}

/* Hero Section */
.hero {
  padding-top: 5rem;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  position: relative;
}

.hero-content {
  display: grid;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr 1fr;
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: hsl(var(--accent) / 0.1);
  color: hsl(var(--accent));
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
}

.hero h1 span {
  display: block;
  color: hsl(var(--primary));
}

.hero-features {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  color: hsl(var(--muted-foreground));
  font-size: 0.875rem;
}

.hero-features > div {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-video {
  background: linear-gradient(to bottom right, hsl(var(--primary) / 0.1), hsl(var(--accent) / 0.1));
  padding: 1.5rem;
  border-radius: 1.5rem;
  border: 1px solid hsl(var(--primary) / 0.2);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.hero-video iframe {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 1rem;
}

/* Benefits Section */
.benefits-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .benefits-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.benefit-card {
  background-color: hsl(var(--card));
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.2s;
}

.benefit-card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.benefit-icon {
  width: 4rem;
  height: 4rem;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.benefit-icon.blue { background-color: hsl(var(--primary)); }
.benefit-icon.orange { background-color: hsl(var(--secondary)); }
.benefit-icon.green { background-color: hsl(var(--accent)); }

.benefit-icon svg {
  width: 2rem;
  height: 2rem;
  color: white;
}

/* ============================================
   Footer
   ============================================ */

.footer {
  background-color: #1f2937;
  color: #f3f4f6;
  padding-top: 4rem;
}

.footer-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer h3 {
  color: white;
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: #d1d5db;
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid #374151;
  padding: 1.5rem 0;
  margin-top: 3rem;
}

.footer-bottom p {
  color: #9ca3af;
  font-size: 0.875rem;
  text-align: center;
  margin: 0;
}

/* Social Icons */
.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  width: 2.5rem;
  height: 2.5rem;
  background-color: #374151;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s;
}

.social-links a:hover {
  background-color: hsl(var(--primary));
}

.social-links svg {
  width: 1.25rem;
  height: 1.25rem;
  color: white;
}

/* ============================================
   Utilities
   ============================================ */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }

.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }

.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.mt-16 { margin-top: 4rem; }

.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }

.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }

.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }

.rounded { border-radius: var(--radius); }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }

.shadow { box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1); }
.shadow-xl { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1); }

.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }
.inline-flex { display: inline-flex; }

.w-full { width: 100%; }
.max-w-md { max-width: 28rem; }
.max-w-lg { max-width: 32rem; }
.max-w-xl { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 56rem; }

.mx-auto { margin-left: auto; margin-right: auto; }

.leading-relaxed { line-height: 1.625; }
.leading-tight { line-height: 1.25; }

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }

.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-0 { top: 0; }
.left-0 { left: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }

.z-10 { z-index: 10; }
.z-50 { z-index: 50; }

.overflow-hidden { overflow: hidden; }

.transition { transition: all 0.2s ease; }

.opacity-80 { opacity: 0.8; }
.opacity-90 { opacity: 0.9; }

.hover\:opacity-80:hover { opacity: 0.8; }

.object-cover { object-fit: cover; }
.object-contain { object-fit: contain; }

.aspect-video { aspect-ratio: 16 / 9; }
.aspect-square { aspect-ratio: 1 / 1; }

.border { border: 1px solid hsl(var(--border)); }
.border-t { border-top: 1px solid hsl(var(--border)); }
.border-b { border-bottom: 1px solid hsl(var(--border)); }

.items-center { align-items: center; }
.items-start { align-items: start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

.flex-wrap { flex-wrap: wrap; }
.flex-shrink-0 { flex-shrink: 0; }
.flex-1 { flex: 1; }

.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }
.space-y-8 > * + * { margin-top: 2rem; }

.space-x-2 > * + * { margin-left: 0.5rem; }
.space-x-3 > * + * { margin-left: 0.75rem; }
.space-x-4 > * + * { margin-left: 1rem; }
.space-x-8 > * + * { margin-left: 2rem; }

/* ============================================
   FAQ Accordion
   ============================================ */

.faq-item {
  background-color: hsl(var(--card));
  border-radius: 0.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  margin-bottom: 1rem;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  text-align: left;
  font-weight: 600;
  color: hsl(var(--foreground));
  cursor: pointer;
  transition: background-color 0.2s;
}

.faq-question:hover {
  background-color: hsl(var(--muted));
}

.faq-answer {
  display: none;
  padding: 0 1.5rem 1rem;
  border-top: 1px solid hsl(var(--border));
}

.faq-answer.active {
  display: block;
}

.faq-answer p {
  color: hsl(var(--muted-foreground));
  margin: 0;
  padding-top: 1rem;
}

/* ============================================
   Form Elements
   ============================================ */

input, textarea, select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: hsl(var(--primary));
  box-shadow: 0 0 0 3px hsl(var(--primary) / 0.1);
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  font-size: 0.875rem;
}

/* ============================================
   SVG Icons (Inline)
   ============================================ */

.icon {
  width: 1.5rem;
  height: 1.5rem;
  display: inline-block;
  vertical-align: middle;
}

.icon-sm { width: 1rem; height: 1rem; }
.icon-lg { width: 2rem; height: 2rem; }
.icon-xl { width: 2.5rem; height: 2.5rem; }

/* ============================================
   Responsive Utilities
   ============================================ */

@media (max-width: 767px) {
  .md\:hidden { display: none !important; }
  .md\:block { display: none !important; }
}

@media (min-width: 768px) {
  .md\:hidden { display: none !important; }
  .md\:block { display: block !important; }
  .md\:flex { display: flex !important; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr) !important; }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr) !important; }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, 1fr) !important; }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr) !important; }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr) !important; }
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.3s ease-out forwards;
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
  .header, .footer, .btn {
    display: none !important;
  }
  
  body {
    font-size: 12pt;
    color: black;
    background: white;
  }
}