/*! Trendchills & More - Main Stylesheet */

/* ============================================================
   Variables & Foundation
   ============================================================ */

:root {
  --color-primary: #1a2d3d;
  --color-secondary: #3a4e5c;
  --color-accent: #e8c13d;
  --color-success: #2d5641;
  --color-warning: #c69c3d;
  --color-danger: #a73a44;
  --color-light: #f5f3f0;
  --color-gray-light: #e8e8e8;
  --color-gray-med: #ccc;
  --color-gray-dark: #666;
  --color-text: #222;
  --color-border: #ddd;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;
  
  --transition: all 0.3s ease;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
}

/* ============================================================
   Reset & Base
   ============================================================ */

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-light);
}

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

a:hover, a:focus {
  color: var(--color-accent);
  outline: none;
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: 1rem;
}

button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(232, 193, 61, 0.1);
}

/* ============================================================
   Container & Layout
   ============================================================ */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--spacing-md);
}

strong { font-weight: 600; }

/* ============================================================
   Header & Navigation
   ============================================================ */

.site-header {
  background: white;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  gap: var(--spacing-lg);
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.logo .accent {
  color: var(--color-accent);
  font-weight: 400;
}

.main-nav {
  display: flex;
  gap: var(--spacing-lg);
  flex: 1;
  justify-content: center;
}

.nav-link {
  color: var(--color-primary);
  font-weight: 500;
  position: relative;
  padding: var(--spacing-xs) 0;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* Mobile Navigation Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  margin-right: var(--spacing-md);
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  position: relative;
  transition: var(--transition);
}

.hamburger::before, .hamburger::after {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  position: absolute;
  transition: var(--transition);
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  top: 8px;
}

.hamburger.open {
  background: transparent;
}

.hamburger.open::before {
  transform: rotate(45deg);
  top: 0;
}

.hamburger.open::after {
  transform: rotate(-45deg);
  top: 0;
}

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

.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-weight: 600;
  text-align: center;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
  font-size: 0.95rem;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

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

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

.btn-secondary:hover, .btn-secondary:focus {
  background-color: #d4af2f;
}

.btn-primary-full {
  width: 100%;
}

/* ============================================================
   Forms
   ============================================================ */

form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-group {
  display: flex;
  flex-direction: column;
}

label {
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--color-primary);
}

input, textarea, select {
  padding: var(--spacing-sm);
  border: 1px solid var(--color-gray-light);
  border-radius: 4px;
  background: white;
  color: var(--color-text);
  transition: var(--transition);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(232, 193, 61, 0.1);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

.form-error {
  color: var(--color-danger);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

.form-success {
  background-color: #e8f5e9;
  border: 1px solid var(--color-success);
  color: var(--color-success);
  padding: var(--spacing-md);
  border-radius: 4px;
}

/* Honeypot spam prevention */
.honeypot {
  position: absolute;
  left: -5000px;
  opacity: 0;
}

/* ============================================================
   Cards & Sections
   ============================================================ */

.card {
  background: white;
  border-radius: 4px;
  padding: var(--spacing-lg);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-heading {
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

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

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-gray-dark);
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

/* ============================================================
   Hero Section
   ============================================================ */

.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
  padding: var(--spacing-xxl) 0;
  text-align: center;
}

.hero h1 {
  color: white;
  margin-bottom: var(--spacing-lg);
  font-size: 2.8rem;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.3rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
}

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

/* ============================================================
   Badges & Labels
   ============================================================ */

.badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 20px;
  background-color: var(--color-accent);
  color: var(--color-primary);
}

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

/* ============================================================
   Grid Layouts
   ============================================================ */

.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

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

.site-footer {
  background: var(--color-primary);
  color: white;
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
  margin-top: var(--spacing-xxl);
}

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

.footer-col h3, .footer-col h4 {
  color: white;
  margin-bottom: var(--spacing-md);
}

.footer-col h3 {
  font-size: 1.25rem;
}

.footer-col p {
  margin-bottom: var(--spacing-sm);
  opacity: 0.9;
  font-size: 0.95rem;
}

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

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: white;
  opacity: 0.9;
}

.footer-links a:hover {
  opacity: 1;
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: var(--spacing-lg);
  text-align: center;
  opacity: 0.8;
  font-size: 0.9rem;
}

.whatsapp-link {
  color: white;
  font-weight: 600;
  display: inline-block;
  margin-bottom: var(--spacing-sm);
}

/* ============================================================
   Mobile Sticky CTA
   ============================================================ */

.mobile-sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-sm);
  background: white;
  border-top: 1px solid var(--color-border);
  z-index: 999;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.1);
}

/* ============================================================
   Performance & Lazy Loading
   ============================================================ */

.lazy {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lazy.loaded {
  opacity: 1;
}

/* Placeholder for lazy images */
.lazy::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ============================================================
   Responsive Design
   ============================================================ */

@media (max-width: 768px) {
  :root {
    --font-size-base: 15px;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }
  
  .header-content {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }
  
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: white;
    border-bottom: 1px solid var(--color-border);
    z-index: 999;
  }
  
  .main-nav.active {
    display: flex;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .nav-link {
    padding: var(--spacing-sm);
    border: none;
    border-bottom: 1px solid var(--color-border);
  }
  
  .site-header .btn-primary {
    display: none;
  }
  
  .mobile-sticky-cta {
    display: block;
  }
  
  .hero h1 {
    font-size: 1.8rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .section {
    padding: var(--spacing-lg) 0;
  }
  
  /* Improve readability on mobile */
  p, li {
    line-height: 1.7;
  }
  
  .card {
    margin-bottom: var(--spacing-md);
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }
  
  .logo {
    font-size: 1rem;
  }
  
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .hero-cta {
    gap: var(--spacing-sm);
  }
  
  .btn {
    padding: var(--spacing-sm) var(--spacing-md);
  }
}

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

@media print {
  .site-header, .site-footer, .mobile-sticky-cta {
    display: none;
  }
}