/* ============================================
   Lily Lane Electrolysis - Main Stylesheet
   ============================================ */

/* ============================================
   CSS Variables - Design System
   ============================================ */
:root {
  /* Colors */
  --color-primary: #2C5F8D;
  --color-primary-dark: #1e4461;
  --color-primary-light: #3a7aad;
  --color-accent: #D4AF37;
  --color-accent-dark: #b8962e;
  --color-white: #FFFFFF;
  --color-black: #000000;
  --color-text-primary: #333333;
  --color-text-secondary: #666666;
  --color-bg-light: #F5F5F5;
  --color-bg-lighter: #FAFAFA;
  --color-success: #4CAF50;
  --color-border: #E0E0E0;
  
  /* Typography */
  --font-heading: 'Montserrat', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Open Sans', 'Segoe UI', Tahoma, sans-serif;
  
  /* Font Sizes */
  --font-size-h1: 3rem;
  --font-size-h2: 2.25rem;
  --font-size-h3: 1.75rem;
  --font-size-h4: 1.375rem;
  --font-size-h5: 1.125rem;
  --font-size-body: 1rem;
  --font-size-small: 0.875rem;
  --font-size-tiny: 0.75rem;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 4rem;
  --space-xxxl: 6rem;
  
  /* Layout */
  --container-max-width: 1200px;
  --border-radius: 4px;
  --border-radius-lg: 8px;
  --border-radius-xl: 12px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.15);
}

/* ============================================
   Reset & Base Styles
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
}

h1 {
  font-size: var(--font-size-h1);
  font-weight: 700;
  line-height: 1.2;
}

h2 {
  font-size: var(--font-size-h2);
}

h3 {
  font-size: var(--font-size-h3);
}

h4 {
  font-size: var(--font-size-h4);
}

h5 {
  font-size: var(--font-size-h5);
}

p {
  margin-bottom: var(--space-sm);
}

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

a:hover {
  color: var(--color-primary-dark);
}

strong {
  font-weight: 600;
}

/* ============================================
   Layout Components
   ============================================ */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-xxl) 0;
}

.section-light {
  background-color: var(--color-bg-light);
}

.section-white {
  background-color: var(--color-white);
}

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

/* ============================================
   Header & Navigation
   ============================================ */
.header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: box-shadow var(--transition-normal);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
  min-height: 70px;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-main {
  font-size: 1.5rem;
  letter-spacing: 0.5px;
  line-height: 1;
}

.logo-sub {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  letter-spacing: 2px;
  text-transform: uppercase;
  line-height: 1;
  margin-left: 1px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  align-items: center;
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
  padding: var(--space-xs) 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-cta {
  margin-left: var(--space-sm);
}

.nav-cta .btn {
  font-size: 0.9rem;
  padding: 0.75rem 1.5rem;
  line-height: 1;
}

.nav-cta .btn {
  font-size: 0.875rem;
  padding: 0.625rem 1.25rem;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--color-primary);
  margin: 5px 0;
  transition: all var(--transition-fast);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--font-size-body);
  padding: 0.875rem 2rem;
  border-radius: var(--border-radius);
  border: none;
  cursor: pointer;
  text-align: center;
  transition: all var(--transition-fast);
  text-decoration: none;
}

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

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

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  padding: 0.75rem 1.875rem;
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* White secondary button for hero section */
.hero .btn-secondary {
  background-color: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-white);
}

.hero .btn-secondary:hover {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

/* White secondary button for hero section */
.hero .btn-secondary {
  background-color: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-white);
}

.hero .btn-secondary:hover {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-text-primary);
  font-weight: 700;
  padding: 1rem 2.25rem;
}

.btn-accent:hover {
  background-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-large {
  font-size: 1.125rem;
  padding: 1.125rem 2.5rem;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('../images/hero/hero-home.jpg') center/cover no-repeat;
  opacity: 0.2;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: var(--space-xl);
}

.hero h1 {
  color: var(--color-white);
  font-size: 3.5rem;
  margin-bottom: var(--space-md);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--space-xl);
  opacity: 0.95;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   FDA Callout
   ============================================ */
.fda-callout {
  background-color: var(--color-accent);
  padding: var(--space-lg) 0;
  text-align: center;
}

.fda-callout-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.fda-badge {
  font-size: 3rem;
  color: var(--color-primary);
}

.fda-text h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.fda-text p {
  color: var(--color-text-primary);
  margin: 0;
}

/* ============================================
   Feature Grid
   ============================================ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-xl);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.feature-card {
  text-align: center;
  padding: var(--space-lg);
}

.feature-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.feature-card p {
  color: var(--color-text-secondary);
  margin: 0;
}

/* ============================================
   Why Section
   ============================================ */
.why-section {
  background-color: var(--color-white);
}

.why-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xxl);
  align-items: center;
  margin-top: var(--space-xl);
}

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

.why-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding: var(--space-md);
  background-color: var(--color-bg-light);
  border-radius: var(--border-radius-lg);
  transition: transform var(--transition-fast);
}

.why-list li:hover {
  transform: translateX(8px);
}

.why-icon {
  font-size: 2rem;
  color: var(--color-accent);
  flex-shrink: 0;
}

.why-text h4 {
  margin-bottom: var(--space-xs);
}

.why-text p {
  margin: 0;
  color: var(--color-text-secondary);
}

.why-image {
  text-align: center;
}

.why-image img {
  max-width: 100%;
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-lg);
}

/* ============================================
   Service Cards
   ============================================ */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.service-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.service-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.service-content {
  padding: var(--space-lg);
}

.service-content h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.service-content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.service-link {
  color: var(--color-primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.service-link:hover {
  gap: var(--space-sm);
}

/* ============================================
   Steps Section
   ============================================ */
.steps-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.step {
  text-align: center;
  padding: var(--space-lg);
  position: relative;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.step h3 {
  margin-bottom: var(--space-sm);
}

.step p {
  color: var(--color-text-secondary);
  margin: 0;
}

/* ============================================
   Pricing Section
   ============================================ */
.pricing-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
  max-width: 600px;
  margin: var(--space-xl) auto 0;
  text-align: center;
}

.pricing-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.price {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  margin: var(--space-md) 0;
}

.pricing-features {
  list-style: none;
  margin: var(--space-lg) 0;
  text-align: left;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features .check {
  color: var(--color-success);
  font-size: 1.25rem;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-info {
  background-color: var(--color-bg-light);
  border-radius: var(--border-radius-xl);
  padding: var(--space-xxl);
  text-align: center;
  max-width: 800px;
  margin: var(--space-xl) auto 0;
}

.contact-info h2 {
  color: var(--color-primary);
  margin-bottom: var(--space-xl);
}

.contact-details {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.contact-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.contact-icon {
  font-size: 2.5rem;
  color: var(--color-primary);
}

.contact-item a {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary);
}

.contact-item a:hover {
  color: var(--color-accent);
}

.contact-text {
  color: var(--color-text-secondary);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-xxl) 0 var(--space-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-section h3 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-xs);
}

.footer-section a:hover {
  color: var(--color-accent);
}

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

.footer-links li {
  margin-bottom: var(--space-xs);
}

.footer-audio-player {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  text-align: center;
}

.footer-audio-player audio {
  width: 100%;
  max-width: 400px;
  height: 40px;
  border-radius: var(--border-radius);
  outline: none;
}

.footer-audio-player audio::-webkit-media-controls-panel {
  background-color: rgba(255, 255, 255, 0.1);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.8);
}

/* ============================================
   Utility Classes
   ============================================ */
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.text-primary { color: var(--color-primary); }
.text-accent { color: var(--color-accent); }
.text-secondary { color: var(--color-text-secondary); }

.bg-light { background-color: var(--color-bg-light); }
.bg-white { background-color: var(--color-white); }