/* ===================================
   WHITEROCK REALTY - MAIN STYLESHEET
   Design System: Corporate-modern, conversion-first
   =================================== */

/* ===== CSS RESET & BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ===== DESIGN TOKENS ===== */
:root {
  /* Colors */
  --primary-blue: #1e3a8a;
  --secondary-blue: #3b82f6;
  --gray-dark: #334155;
  --gray-medium: #64748b;
  --gray-light: #e2e8f0;
  --white: #ffffff;
  --accent-gold: #f59e0b;
  --bg-light: #f8fafc;
  
  /* Typography */
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
  
  /* Layout */
  --container-max: 1280px;
  --section-padding: 4rem 1.5rem;
}

/* ===== BASE STYLES ===== */
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--gray-dark);
  background: var(--white);
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--primary-blue);
  margin-bottom: var(--spacing-sm);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

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

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

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

/* ===== CONTAINER & LAYOUT ===== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--section-padding);
}

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

/* Grid System */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* Flex Utilities */
.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-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* ===== NAVIGATION ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-sm) 0;
}

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

.logo {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--primary-blue);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav-links a {
  color: var(--gray-dark);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--secondary-blue);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: var(--text-2xl);
  color: var(--primary-blue);
  cursor: pointer;
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 60px;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: calc(100vh - 60px);
    background: var(--white);
    flex-direction: column;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    transition: right var(--transition-base);
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .nav-toggle {
    display: block;
  }
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 0.75rem 1.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-base);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  min-height: 44px; /* Touch target */
}

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

.btn-primary:hover {
  background: var(--primary-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--white);
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
}

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

.btn-whatsapp {
  background: #25d366;
  color: var(--white);
}

.btn-whatsapp:hover {
  background: #20ba5a;
}

.btn-call {
  background: var(--accent-gold);
  color: var(--white);
}

.btn-call:hover {
  background: #d97706;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: var(--text-lg);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-sm);
}

/* ===== HERO SECTION ===== */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary-blue) 0%, #2563eb 100%);
  color: var(--white);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><rect fill="rgba(255,255,255,0.03)" width="50" height="50"/></svg>');
  background-size: 100px 100px;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--white);
  margin-bottom: var(--spacing-md);
  line-height: 1.1;
}

.hero p {
  font-size: var(--text-xl);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-xl);
}

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

.hero-proof {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}

/* ===== CARDS ===== */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-light);
  border-radius: var(--radius-md);
  color: var(--secondary-blue);
  font-size: var(--text-3xl);
  margin-bottom: var(--spacing-md);
}

.card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--spacing-sm);
}

.card p {
  color: var(--gray-medium);
  margin-bottom: var(--spacing-md);
}

/* ===== PROCESS RAIL ===== */
.process-rail {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

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

.process-step::after {
  content: '';
  position: absolute;
  top: 30px;
  right: -20px;
  width: 40px;
  height: 2px;
  background: var(--gray-light);
}

.process-step:last-child::after {
  display: none;
}

.process-number {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--secondary-blue);
  color: var(--white);
  border-radius: 50%;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-2xl);
  margin: 0 auto var(--spacing-sm);
}

.process-step h4 {
  font-size: var(--text-base);
  color: var(--gray-dark);
}

/* ===== BADGES ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 0.5rem 1rem;
  background: var(--bg-light);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--primary-blue);
}

.badge i {
  color: var(--secondary-blue);
}

.badge-row {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin: var(--spacing-lg) 0;
}

/* ===== FORMS ===== */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--gray-dark);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: var(--text-base);
  border: 2px solid var(--gray-light);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--secondary-blue);
}

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

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-xs);
}

.form-checkbox input[type="checkbox"] {
  margin-top: 4px;
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.form-error {
  color: #dc2626;
  font-size: var(--text-sm);
  margin-top: var(--spacing-xs);
}

.form-success {
  padding: var(--spacing-md);
  background: #dcfce7;
  color: #166534;
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
}

/* ===== STICKY CTA BAR (Mobile) ===== */
.sticky-cta-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: var(--white);
  box-shadow: 0 -4px 6px rgba(0,0,0,0.1);
  padding: var(--spacing-sm);
  display: none;
}

.sticky-cta-bar .cta-buttons {
  display: flex;
  gap: var(--spacing-xs);
  max-width: var(--container-max);
  margin: 0 auto;
}

.sticky-cta-bar .btn {
  flex: 1;
  padding: 0.75rem 0.5rem;
  font-size: var(--text-sm);
}

@media (max-width: 768px) {
  .sticky-cta-bar {
    display: block;
  }
}

/* ===== TESTIMONIALS ===== */
.testimonial-card {
  background: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.testimonial-quote {
  font-style: italic;
  color: var(--gray-medium);
  margin-bottom: var(--spacing-md);
  position: relative;
  padding-left: var(--spacing-lg);
}

.testimonial-quote::before {
  content: '"';
  position: absolute;
  left: 0;
  top: -10px;
  font-size: var(--text-4xl);
  color: var(--secondary-blue);
  opacity: 0.3;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.testimonial-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--gray-light);
}

.testimonial-name {
  font-weight: 600;
  color: var(--gray-dark);
}

.testimonial-role {
  font-size: var(--text-sm);
  color: var(--gray-medium);
}

/* ===== FOOTER ===== */
.footer {
  background: var(--primary-blue);
  color: var(--white);
  padding: var(--spacing-2xl) var(--spacing-md) var(--spacing-lg);
}

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

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

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

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

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

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

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.hidden { display: none; }
.visible { display: block; }

/* ===== RESPONSIVE IMAGES ===== */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

.img-rounded { border-radius: var(--radius-lg); }
.img-circle { border-radius: 50%; }

/* ===== ACCESSIBILITY ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus States */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--secondary-blue);
  outline-offset: 2px;
}

/* ===== RESPONSIVE BREAKPOINTS ===== */
@media (max-width: 1024px) {
  :root {
    --section-padding: 3rem 1.5rem;
  }
  
  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 2rem 1rem;
  }
  
  .hero {
    min-height: 70vh;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-cta .btn {
    width: 100%;
  }
  
  .process-rail {
    grid-template-columns: 1fr;
  }
  
  .process-step::after {
    display: none;
  }
}

/* ===== PRINT STYLES ===== */
@media print {
  .navbar,
  .sticky-cta-bar,
  .btn,
  .footer {
    display: none;
  }
}