@import url('https://fonts.googleapis.com/css2?family=Hanken+Grotesk:wght@600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@500&display=swap');

:root {
  /* Colors */
  --primary: #006973;
  --primary-container: #31b2c1;
  --on-primary: #ffffff;
  --on-primary-container: #004046;
  --secondary: #5d5e61;
  --on-secondary: #ffffff;
  --tertiary: #466800;
  --tertiary-container: #7cb311;
  --on-tertiary-container: #294000;
  --surface: #f8f9ff;
  --surface-container-low: #eff4ff;
  --surface-container-lowest: #ffffff;
  --on-surface: #0b1c30;
  --on-surface-variant: #3d494b;
  --outline: #6d797b;
  --outline-variant: #bcc9cb;
  --inverse-surface: #213145;
  --inverse-on-surface: #eaf1ff;
  --whatsapp-green: #25D366;

  /* Typography */
  --font-display: 'Hanken Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-label: 'JetBrains Mono', monospace;

  /* Layout */
  --section-padding-desktop: 80px;
  --section-padding-mobile: 40px;
  --container-max: 1280px;
  --gutter: 24px;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--surface);
  color: var(--on-surface);
  line-height: 1.5;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

button, select, input, textarea {
  font-family: inherit;
  border: none;
  outline: none;
}

/* Utility Classes */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.bg-surface { background-color: var(--surface); }
.bg-surface-low { background-color: var(--surface-container-low); }

/* Typography Classes */
h1, h2, h3, .font-display { font-family: var(--font-display); }
.font-label { font-family: var(--font-label); letter-spacing: 0.05em; }

/* Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--surface);
  border-bottom: 1px solid var(--outline-variant);
  transition: box-shadow 0.3s ease, height 0.3s ease;
}

.navbar.scrolled {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
  transition: height 0.3s ease;
}

.navbar.scrolled .nav-container {
  height: 64px;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-link {
  font-weight: 500;
  color: var(--secondary);
  transition: color 0.2s;
}

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

.nav-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--on-surface);
}

.btn-primary {
  background-color: var(--primary);
  color: var(--on-primary);
  padding: 12px 24px;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: opacity 0.2s, transform 0.2s;
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-primary:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.menu-toggle {
  display: none;
  background: none;
  color: var(--primary);
  cursor: pointer;
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background-color: var(--surface);
  z-index: 100;
  padding: 24px;
  flex-direction: column;
}

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

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 48px;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.mobile-nav-links a {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
  color: var(--secondary);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  padding: var(--section-padding-desktop) 0;
  background: linear-gradient(rgba(11, 28, 48, 0.75), rgba(11, 28, 48, 0.45)), url('https://firebasestorage.googleapis.com/v0/b/chiltel-b7f53.firebasestorage.app/o/Website_Images%2FBG.jpeg?alt=media&token=65430801-68da-48a5-8e3a-22cfe35475f7');
  background-size: cover;
  background-position: center;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-text {
  color: white;
}

.hero-title {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-desc {
  font-size: 18px;
  color: #e2e8f0;
  margin-bottom: 32px;
  max-width: 500px;
}

/* Quote Form */
.quote-card {
  background-color: var(--surface-container-lowest);
  padding: 32px;
  border-radius: 8px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  max-width: 450px;
  margin-left: auto;
  width: 100%;
}

.quote-card h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

.quote-card > p {
  color: var(--on-surface-variant);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-family: var(--font-label);
  font-size: 14px;
  color: var(--secondary);
  margin-bottom: 8px;
}

.form-input, .form-textarea, .phone-wrapper, .custom-select {
  width: 100%;
  border: 1px solid var(--outline-variant);
  border-radius: 4px;
  background-color: var(--surface-container-lowest);
  color: var(--on-surface);
  box-sizing: border-box;
  font-family: inherit;
  font-size: 16px;
  transition: all 0.2s;
}

.form-input {
  height: 48px;
  padding: 0 16px;
}

.form-textarea {
  padding: 12px 16px;
}

.phone-wrapper {
  display: flex;
  align-items: center;
  padding: 0;
  height: 48px;
  overflow: hidden;
}

.phone-wrapper .country-code {
  padding: 0 16px;
  color: var(--on-surface-variant);
  border-right: 1px solid var(--outline-variant);
  background-color: rgba(255,255,255,0.02);
  height: 100%;
  display: flex;
  align-items: center;
}

.phone-wrapper input.phone-inner {
  border: none;
  background: transparent;
  color: var(--on-surface);
  width: 100%;
  height: 100%;
  outline: none;
  padding: 0 16px;
  font-family: inherit;
  font-size: 16px;
}

/* Custom Select Styles */
.custom-select-wrapper {
  position: relative;
  user-select: none;
  width: 100%;
  box-sizing: border-box;
}

.custom-select {
  height: 48px;
  padding: 0 16px;
  color: var(--on-surface-variant);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.custom-select.selected {
  color: var(--on-surface);
}
.custom-select::after {
  content: "keyboard_arrow_down";
  font-family: 'Material Symbols Outlined';
  font-size: 20px;
  color: var(--on-surface-variant);
  transition: transform 0.2s;
}
.custom-select.open::after {
  transform: rotate(180deg);
}
.custom-options {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: 4px;
  margin-top: 4px;
  z-index: 10;
  display: none;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  overflow: hidden;
}
.custom-options.open {
  display: block;
  animation: fadeIn 0.2s ease-out;
}
.custom-option {
  padding: 12px 16px;
  display: block;
  cursor: pointer;
  color: var(--on-surface);
  transition: background-color 0.2s;
}
.custom-option:hover {
  background-color: var(--surface-variant);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-fixed);
}

.form-textarea {
  resize: vertical;
}

/* Services Grid */
.section {
  padding: var(--section-padding-desktop) 0;
}

.section-title {
  font-size: 32px;
  margin-bottom: 48px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--gutter);
}

.service-card {
  background-color: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.service-image {
  height: 192px;
  overflow: hidden;
}

.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.service-card:hover .service-image img {
  transform: scale(1.1);
}

.service-content {
  padding: 24px;
}

.service-title {
  font-size: 20px;
  color: var(--primary);
  margin-bottom: 8px;
}

.service-desc {
  color: var(--on-surface-variant);
}

/* Trust Section */
.trust-section {
  background-color: var(--surface-container-low);
}

.trust-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background-color: var(--surface-container-lowest);
  padding: 24px;
  border-radius: 8px;
  border: 1px solid var(--outline-variant);
  margin-bottom: 24px;
}

.trust-icon {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  background-color: rgba(49, 178, 193, 0.2);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.trust-title {
  font-size: 18px;
  margin-bottom: 4px;
}

.trust-desc {
  color: var(--on-surface-variant);
}

/* Footer */
.footer {
  background-color: var(--surface-container-lowest);
  border-top: 1px solid var(--outline-variant);
  padding: var(--section-padding-desktop) 0 40px;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  display: block;
}

.footer-desc {
  color: var(--on-surface-variant);
  margin-bottom: 24px;
  max-width: 300px;
}

.footer-socials {
  display: flex;
  gap: 16px;
}

.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--surface-container-low);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--on-surface-variant);
  transition: background-color 0.2s, color 0.2s;
}

.social-icon:hover {
  background-color: var(--primary-container);
  color: var(--on-primary);
}

.footer-heading {
  font-family: var(--font-label);
  font-size: 14px;
  color: var(--primary);
  margin-bottom: 16px;
}

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

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--on-surface-variant);
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid var(--outline-variant);
  padding-top: 32px;
  text-align: center;
  color: var(--on-surface-variant);
  font-size: 14px;
}

/* WhatsApp FAB */
.fab-whatsapp {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 60;
  width: 64px;
  height: 64px;
  background-color: var(--whatsapp-green);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s;
}

.fab-whatsapp:hover {
  transform: scale(1.1);
}

.fab-pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background-color: var(--whatsapp-green);
  opacity: 0.3;
  animation: pulse-ring 1.5s cubic-bezier(0.455, 0.03, 0.515, 0.955) infinite;
  z-index: -1;
}

@keyframes pulse-ring {
  0% { transform: scale(0.8); opacity: 0.5; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.8); opacity: 0.5; }
}

.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .quote-card {
    margin: 0 auto;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding-desktop: var(--section-padding-mobile);
  }
  .nav-links {
    display: none;
  }
  .menu-toggle {
    display: block;
  }
  .hero {
    background: var(--surface-container-low);
    min-height: auto;
  }
  .hero-text {
    color: var(--on-surface);
  }
  .hero-title {
    font-size: 36px;
    color: var(--primary);
  }
  .hero-desc {
    color: var(--on-surface-variant);
    margin: 0 auto 32px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}