/* Style sheet for Portal HVACR Website */

/* --- CSS Variables & Design Tokens --- */
:root {
  /* Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc; /* Soft off-white */
  --bg-card: #ffffff;
  --text-main: #0f172a; /* Slate 900 (High contrast) */
  --text-muted: #475569; /* Slate 600 */
  --text-light: #64748b; /* Slate 500 */
  --primary-accent: #0284c7; /* Professional Sky Blue */
  --primary-hover: #0369a1;
  --whatsapp-green: #25d366;
  --whatsapp-hover: #128c7e;
  --accent-orange: #f97316;
  --accent-orange-hover: #ea580c;
  --border-color: #e2e8f0; /* Slate 200 */
  --error-color: #ef4444;

  /* Card Colors */
  --icon-bg-red: #fef2f2;
  --icon-stroke-red: #ef4444;
  --icon-bg-blue: #f0f9ff;
  --icon-stroke-blue: #0284c7;
  --icon-bg-purple: #faf5ff;
  --icon-stroke-purple: #8b5cf6;
  --icon-bg-teal: #f0fdfa;
  --icon-stroke-teal: #0d9488;

  /* Typography */
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  /* Spacing */
  --container-width: 1200px;
  --header-height: 78px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -2px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.08);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.1);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

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

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

/* --- Helper Classes --- */
.wrap {
  width: min(var(--container-width), 92%);
  margin-inline: auto;
}

/* Skip link styling for keyboard access */
.skip-link {
  position: absolute;
  top: -80px;
  left: 20px;
  background: var(--text-main);
  color: var(--bg-primary);
  padding: 12px 24px;
  border-radius: 8px;
  z-index: 100;
  font-weight: 600;
  transition: top var(--transition-fast);
}

.skip-link:focus-visible {
  top: 20px;
  outline: 3px solid var(--primary-accent);
}

/* --- Announcement Bar --- */
.announcement-bar {
  background: var(--text-main);
  color: var(--bg-secondary);
  font-size: 13px;
  font-weight: 500;
  padding-block: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.announcement-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.emergency-badge a {
  color: var(--primary-accent);
  font-weight: 700;
}

.emergency-badge a:hover {
  text-decoration: underline;
}

/* --- Sticky Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: background var(--transition-normal);
}

.header-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  width: 100%;
  padding-inline: 16px;
}

.brand {
  display: flex;
  align-items: center;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-main);
}

.brand-name span {
  color: var(--accent-orange);
}

.brand-subtitle {
  font-size: 11px;
  color: var(--text-light);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-weight: 600;
  margin-top: -2px;
}

/* Navigation Menu */
.nav-menu {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-link {
  font-weight: 600;
  font-size: 15px;
  color: var(--text-muted);
  position: relative;
  padding-block: 8px;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-accent);
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-link:hover::after {
  width: 100%;
}

/* Header Buttons */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* General Buttons System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 99px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-icon,
.cta-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.btn.primary {
  background-color: var(--primary-accent);
  color: var(--bg-primary);
  box-shadow: 0 4px 10px rgba(2, 132, 199, 0.15);
}

.btn.primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(2, 132, 199, 0.25);
}

.btn.outline {
  background-color: transparent;
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn.outline:hover {
  background-color: var(--bg-secondary);
  border-color: var(--text-light);
}

.btn.success {
  background-color: var(--whatsapp-green);
  color: var(--bg-primary);
  box-shadow: 0 4px 10px rgba(37, 211, 102, 0.15);
}

.btn.success:hover {
  background-color: var(--whatsapp-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(37, 211, 102, 0.25);
}

.btn.btn-large {
  padding: 14px 28px;
  font-size: 16px;
}

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

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-main);
  padding: 6px;
}

.menu-open-icon {
  width: 28px;
  height: 28px;
}

/* --- Hero Section --- */
.hero {
  padding-block: 60px 80px;
  background: radial-gradient(circle at 80% 20%, #f0f9ff 0%, var(--bg-primary) 70%);
  overflow: hidden;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  align-items: center;
  gap: 48px;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: #f0f9ff;
  border: 1px solid #bae6fd;
  color: #0369a1;
  padding: 6px 14px;
  border-radius: 99px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 24px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-orange);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(249, 115, 22, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(249, 115, 22, 0); }
}

.hero-title {
  font-size: clamp(38px, 5vw, 64px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -2px;
  color: var(--text-main);
  margin-bottom: 20px;
  text-wrap: balance;
}

.hero-title span.accent-text {
  color: var(--accent-orange);
}

.hero-lead {
  font-size: 18px;
  color: var(--text-muted);
  font-weight: 500;
  max-width: 540px;
  margin-bottom: 36px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
  width: 100%;
}

.hero-highlights {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 14px;
  color: var(--text-muted);
}

.highlight-check {
  color: var(--primary-accent);
  font-weight: 900;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.image-wrapper {
  position: relative;
  border-radius: 24px;
  box-shadow: var(--shadow-xl);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 12px;
  max-width: 100%;
}

.hero-img {
  width: 100%;
  height: auto;
  border-radius: 16px;
  object-fit: cover;
  display: block;
}

.trust-floating-card {
  position: absolute;
  bottom: 24px;
  left: -24px;
  background-color: var(--bg-card);
  border-radius: 16px;
  padding: 16px 20px;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  animation: float-animation 6s ease-in-out infinite;
}

@keyframes float-animation {
  0% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
  100% { transform: translateY(0); }
}

.floating-stars {
  color: #fbbf24;
  font-size: 18px;
  letter-spacing: 2px;
}

.floating-text {
  font-size: 13px;
  font-weight: 800;
  color: var(--text-main);
}

/* --- Trust Bar Section --- */
.trust-bar {
  background-color: var(--bg-secondary);
  border-block: 1px solid var(--border-color);
  padding-block: 28px;
}

.trust-bar-wrap {
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.trust-seal-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.seal-icon {
  width: 32px;
  height: 32px;
  color: var(--primary-accent);
}

.seal-text {
  display: flex;
  flex-direction: column;
}

.seal-text strong {
  font-size: 15px;
  font-weight: 800;
  color: var(--text-main);
}

.seal-text span {
  font-size: 12px;
  color: var(--text-light);
}

/* --- Section Title Utility --- */
.section-title-wrapper {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: 48px;
}

.section-subtitle {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--primary-accent);
  letter-spacing: 2.5px;
  display: block;
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 16px;
  text-wrap: balance;
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
}

/* --- Services Grid Section --- */
.services-section {
  padding-block: 80px;
  background-color: var(--bg-primary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.service-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: #bae6fd;
}

.service-icon-box {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  margin-bottom: 24px;
}

.service-icon {
  width: 26px;
  height: 26px;
}

/* Service Card Icon Theme Variables */
.service-icon-box.card-red { background: var(--icon-bg-red); color: var(--icon-stroke-red); }
.service-icon-box.card-blue { background: var(--icon-bg-blue); color: var(--icon-stroke-blue); }
.service-icon-box.card-purple { background: var(--icon-bg-purple); color: var(--icon-stroke-purple); }
.service-icon-box.card-teal { background: var(--icon-bg-teal); color: var(--icon-stroke-teal); }

.service-card-title {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-main);
}

.service-card-text {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-grow: 1;
}

.service-card-link {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary-accent);
  display: inline-flex;
  align-items: center;
}

.service-card-link:hover {
  color: var(--primary-hover);
}

/* --- Specialization Section --- */
.specialization-section {
  padding-block: 80px;
  background-color: var(--bg-secondary);
}

.specialization-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
}

.specialization-paragraph {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.badge-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill-badge {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: 99px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.pill-badge:hover {
  border-color: var(--primary-accent);
  color: var(--primary-accent);
}

.specialization-graphic {
  height: 340px;
  position: relative;
  background: radial-gradient(circle, #e0f2fe 0%, transparent 70%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon-bubble {
  position: absolute;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--bg-primary);
  box-shadow: var(--shadow-md);
  display: grid;
  place-items: center;
  font-size: 24px;
  border: 1px solid var(--border-color);
  animation: bubble-float 4s ease-in-out infinite alternate;
}

@keyframes bubble-float {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-12px); }
}

.icon-bubble:nth-child(2) { animation-delay: 0.5s; }
.icon-bubble:nth-child(3) { animation-delay: 1s; }

.specialization-center-card {
  background-color: var(--bg-card);
  padding: 24px 32px;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.specialization-center-card strong {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 4px;
}

.specialization-center-card span {
  font-size: 13px;
  color: var(--text-light);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

/* --- About Section --- */
.about-section {
  padding-block: 80px;
  background-color: var(--bg-primary);
}

.about-container {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  align-items: center;
  gap: 60px;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.stat-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 32px 24px;
  border-radius: 20px;
  text-align: center;
}

.stat-num {
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 800;
  color: var(--primary-accent);
  line-height: 1.1;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
}

.about-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.about-text {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.about-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.about-list li {
  position: relative;
  padding-left: 28px;
  font-size: 15px;
  color: var(--text-muted);
}

.about-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--primary-accent);
  font-weight: 900;
  font-size: 18px;
  line-height: 1;
}

.about-list li strong {
  color: var(--text-main);
  font-weight: 700;
}

/* --- Portfolio Section --- */
.portfolio-section {
  padding-block: 80px;
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-color);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  grid-auto-rows: 220px;
  gap: 20px;
}

.portfolio-item {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-fast);
  cursor: pointer;
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-normal);
}

/* Bento Spans */
.portfolio-item.grid-square {
  grid-column: span 1;
  grid-row: span 1;
}

.portfolio-item.grid-landscape {
  grid-column: span 2;
  grid-row: span 1;
}

.portfolio-item.grid-portrait {
  grid-column: span 1;
  grid-row: span 2;
}

.portfolio-item.grid-tall {
  grid-column: span 1;
  grid-row: span 2;
}

.portfolio-item.grid-wide {
  grid-column: span 2;
  grid-row: span 1;
}

/* Hover effects */
.portfolio-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-accent);
}

.portfolio-item:hover img {
  transform: scale(1.05);
}

/* Overlay & Text Captions */
.portfolio-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.95) 0%, rgba(15, 23, 42, 0.4) 70%, rgba(15, 23, 42, 0) 100%);
  padding: 24px 20px 20px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  opacity: 0;
  height: 100%;
  transition: opacity var(--transition-normal);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-category {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--primary-accent);
  letter-spacing: 1.5px;
  margin-bottom: 4px;
}

.portfolio-item-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--bg-primary);
  line-height: 1.2;
}

/* --- Contact & Booking Section --- */
.contact-section {
  padding-block: 80px;
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: start;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
}

.phone-display {
  font-size: clamp(36px, 6vw, 48px);
  font-weight: 900;
  color: var(--primary-accent);
  margin-bottom: 32px;
  letter-spacing: -1px;
}

.contact-info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-info-list li {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  display: grid;
  place-items: center;
  color: var(--primary-accent);
  flex-shrink: 0;
}

.contact-icon-wrapper svg {
  width: 22px;
  height: 22px;
}

.contact-detail-text {
  display: flex;
  flex-direction: column;
}

.contact-detail-text strong {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-light);
  letter-spacing: 1px;
}

.contact-detail-text span {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
}

.contact-detail-text span a:hover {
  color: var(--primary-accent);
  text-decoration: underline;
}

/* Booking Card & Form */
.booking-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 40px;
  box-shadow: var(--shadow-xl);
}

.booking-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 6px;
}

.booking-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.booking-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
}

.form-control {
  font-family: var(--font-family);
  font-size: 15px;
  color: var(--text-main);
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  width: 100%;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control::placeholder {
  color: var(--text-light);
  opacity: 0.7;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-accent);
  box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.12);
}

.form-control:focus-visible {
  outline: none;
  border-color: var(--primary-accent);
  box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.12);
}

/* Dropdown styling correction */
select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 16px;
  padding-right: 40px;
}

textarea.form-control {
  resize: vertical;
}

/* Form Errors */
.error-msg {
  font-size: 12px;
  color: var(--error-color);
  font-weight: 600;
  margin-top: 2px;
  display: none;
}

.form-control.input-error {
  border-color: var(--error-color);
}

.form-control.input-error:focus {
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.15);
}

/* Spinner for submit button */
.spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2.5px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #ffffff;
  animation: spin 800ms linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* --- Footer --- */
.footer {
  background-color: var(--text-main);
  color: #94a3b8;
  padding-block: 60px 40px;
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 40px;
  margin-bottom: 28px;
}

.footer-brand-column {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--bg-primary);
  font-size: 20px;
  font-weight: 800;
}

.footer-logo svg {
  width: 24px;
  height: 24px;
  color: var(--primary-accent);
}

.footer-tagline {
  max-width: 340px;
  line-height: 1.5;
}

.copyright {
  font-size: 12px;
  color: #64748b;
  margin-top: auto;
}

.footer-title {
  color: var(--bg-primary);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links-list a:hover {
  color: var(--bg-primary);
  text-decoration: underline;
}

.footer-contact-column {
  line-height: 1.6;
}

.footer-contact-column a:hover {
  color: var(--bg-primary);
  text-decoration: underline;
}

/* --- Floating Call/WhatsApp Shortcuts --- */
.floating-shortcuts {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 99;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.shortcut-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  border-radius: 99px;
  color: var(--bg-primary);
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.15);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.shortcut-btn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.25);
}

.shortcut-call {
  background-color: var(--primary-accent);
}

.shortcut-wa {
  background-color: var(--whatsapp-green);
}

.shortcut-icon {
  width: 18px;
  height: 18px;
}

/* --- Media Queries (Responsive Design) --- */

/* Responsive breakpoints: desktop scale down */
@media (max-width: 1024px) {
  :root {
    --header-height: 70px;
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-content {
    align-items: center;
  }

  .hero-lead {
    margin-inline: auto;
  }

  .hero-ctas {
    justify-content: center;
  }

  .hero-highlights {
    justify-content: center;
  }

  .trust-floating-card {
    left: 20px;
    bottom: 20px;
  }

  .specialization-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .specialization-graphic {
    order: -1;
    height: 260px;
  }

  .about-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-content {
    align-items: center;
    text-align: center;
  }

  .about-list {
    align-items: flex-start;
    text-align: left;
    margin-inline: auto;
  }

  .about-content .btn {
    margin-inline: auto;
  }

  .contact-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .contact-info-list {
    align-items: center;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand-column {
    grid-column: span 2;
  }
}

/* Mobile responsive navigation & settings */
/* Mobile responsive navigation & settings (Tablet & Mobile nav collapse) */
@media (max-width: 1024px) {
  /* Show menu toggle, hide list */
  .mobile-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-primary);
    padding: 32px;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    z-index: 80;
    border-top: 1px solid var(--border-color);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    height: calc(100vh - var(--header-height));
  }

  .nav-menu.open {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    gap: 24px;
    width: 100%;
  }

  .nav-link {
    font-size: 18px;
    display: block;
    width: 100%;
    padding-block: 12px;
    border-bottom: 1px solid var(--border-color);
  }

  .header-actions .book-btn {
    display: none; /* Hide header CTA on mobile, keep toggle & call */
  }

  /* Portfolio Tablet Layout */
  .portfolio-grid {
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 200px;
  }

  .portfolio-item.grid-wide,
  .portfolio-item.grid-landscape {
    grid-column: span 2;
  }

  .portfolio-item.grid-square,
  .portfolio-item.grid-portrait,
  .portfolio-item.grid-tall {
    grid-column: span 1;
  }

  .portfolio-overlay {
    opacity: 1;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.85) 0%, rgba(15, 23, 42, 0) 80%);
  }
}

/* Mobile responsive settings (max-width: 768px) */
@media (max-width: 768px) {
  /* Collapse phone button to icon on mobile */
  .phone-btn span {
    display: none;
  }

  .phone-btn {
    padding: 10px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-brand-column {
    grid-column: span 1;
  }

  /* Show labels in floating shortcuts only on larger screens */
  .shortcut-btn span {
    display: none;
  }

  .shortcut-btn {
    padding: 14px;
    border-radius: 50%;
  }

  /* Portfolio Mobile Layout */
  .portfolio-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
    gap: 16px;
  }

  .portfolio-item {
    grid-column: span 1 !important;
    grid-row: span 1 !important;
    aspect-ratio: 4/3;
  }

  .portfolio-item.grid-tall,
  .portfolio-item.grid-portrait {
    aspect-ratio: 3/4;
  }

  .portfolio-item.grid-wide {
    aspect-ratio: 16/9;
  }
}

@media (max-width: 480px) {
  .hero {
    padding-block: 30px 40px;
  }

  .announcement-bar {
    font-size: 11px;
    text-align: center;
  }

  .announcement-wrap {
    justify-content: center;
  }

  .hero-ctas .btn {
    width: 100%;
  }

  .booking-card {
    padding: 24px;
  }
}