/* ==========================================================================
   LOA THÀNH ARCHITECTURE & BUILD - LANDING PAGE CSS
   Theme: Luxury Light-Dark Hybrid
   ========================================================================== */

/* 1. Global Reset & Variables */
:root {
  /* Colors */
  --color-primary: #c29255;       /* Bronze Gold Brand Color */
  --color-primary-light: #d8aa6d; /* Light Bronze */
  --color-primary-dark: #a1733b;  /* Dark Bronze */
  --color-dark: #121517;          /* Charcoal Black */
  --color-dark-surface: #1e2226;  /* Deep Slate surface */
  --color-text-dark: #1b1e22;     /* Heading text dark */
  --color-text-muted: #535c68;    /* Body text on white */
  --color-text-light: #f5f6fa;    /* Text light on dark */
  --color-text-dim: #a0a7b0;      /* Dim text on dark */
  --color-bg-white: #ffffff;
  --color-bg-warm: #fbfaf8;       /* Warm Off-White background */
  --color-bg-light: #eef0f3;
  --color-border: rgba(194, 146, 85, 0.15); /* Gold tinted border */

  /* Fonts */
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Montserrat', sans-serif;

  /* Spacing & Transitions */
  --transition-fast: all 0.2s ease;
  --transition-normal: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-slow: all 0.6s cubic-bezier(0.25, 1, 0.5, 1);
  --box-shadow-premium: 0 15px 35px rgba(0, 0, 0, 0.05), 0 5px 15px rgba(0, 0, 0, 0.03);
  --box-shadow-hover: 0 25px 50px rgba(194, 146, 85, 0.12);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px; /* Offset for sticky navbar */
}

body {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-muted);
  background-color: var(--color-bg-white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-dark);
  font-weight: 700;
  letter-spacing: 0.5px;
}

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

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 100px 0;
  position: relative;
}

.text-center { text-align: center; }
.text-light { color: var(--color-text-light) !important; }
.highlight { color: var(--color-primary); }
.align-left { margin-left: 0 !important; }

/* Section Headers */
.section-tag {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 3px;
  display: block;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section-tag.text-light {
  color: var(--color-primary-light) !important;
}

.section-title {
  font-size: 36px;
  line-height: 1.25;
  margin-bottom: 15px;
  font-weight: 700;
  text-transform: uppercase;
}

.title-underline {
  width: 60px;
  height: 3px;
  background-color: var(--color-primary);
  margin: 0 auto 30px auto;
  position: relative;
}

.section-desc {
  max-width: 700px;
  margin: 0 auto 50px auto;
  font-size: 16px;
  color: var(--color-text-muted);
  font-weight: 400;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  border-radius: 0px; /* Premium minimalist sharp corner look */
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-normal);
}

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

.btn-primary:hover {
  background-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(194, 146, 85, 0.2);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-light);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background-color: var(--color-text-light);
  color: var(--color-dark);
  border-color: var(--color-text-light);
  transform: translateY(-2px);
}

.btn-hotline {
  background-color: rgba(194, 146, 85, 0.1);
  color: var(--color-primary);
  border-color: var(--color-primary);
  padding: 10px 20px;
  font-size: 13px;
}

.btn-hotline:hover {
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

.btn-hotline .icon {
  width: 16px;
  height: 16px;
  fill: currentColor;
  margin-right: 8px;
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-small {
  padding: 8px 16px;
  font-size: 11px;
  letter-spacing: 1px;
}

/* ==========================================================================
   2. Header & Navbar
   ========================================================================== */
#main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(18, 21, 23, 0.85); /* Glassmorphism backdrop */
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition-normal);
}

#main-header.scrolled {
  background-color: rgba(18, 21, 23, 0.95);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  transition: var(--transition-normal);
}

#main-header.scrolled .header-container {
  height: 70px;
}

.logo {
  display: flex;
  flex-direction: column;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text-light);
  letter-spacing: 3px;
  line-height: 1.1;
}

.logo-sub {
  font-size: 8px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 2px;
  margin-top: 2px;
}

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

.nav-links a {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 8px 0;
  position: relative;
}

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

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

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 15px;
}

.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
}

.mobile-nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text-light);
  transition: var(--transition-normal);
}

/* ==========================================================================
   3. Hero Section
   ========================================================================== */
.hero-section {
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 0;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  z-index: 1;
  transform: scale(1.05);
  animation: zoomBg 20s infinite alternate;
}

@keyframes zoomBg {
  0% { transform: scale(1.02); }
  100% { transform: scale(1.08); }
}

.hero-container {
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 800px;
  margin-top: 60px;
}

.hero-tag {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary-light);
  letter-spacing: 4px;
  display: block;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.hero-title {
  font-size: 58px;
  line-height: 1.15;
  color: var(--color-text-light);
  margin-bottom: 25px;
  text-transform: uppercase;
  font-weight: 700;
}

.hero-subtitle {
  font-size: 16px;
  color: var(--color-text-dim);
  margin-bottom: 40px;
  font-weight: 300;
  max-width: 680px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 20px;
}

.scroll-down-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  width: 30px;
  height: 50px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 15px;
}

.scroll-down-indicator span {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  background-color: var(--color-primary);
  border-radius: 50%;
  animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
  0% { top: 8px; opacity: 1; }
  50% { top: 28px; opacity: 0; }
  100% { top: 8px; opacity: 1; }
}

/* ==========================================================================
   4. About Us Section
   ========================================================================== */
.about-section {
  background-color: var(--color-bg-white);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 80px;
}

.about-card {
  background-color: var(--color-bg-warm);
  border: 1px solid var(--color-bg-light);
  padding: 40px 30px;
  text-align: center;
  transition: var(--transition-normal);
}

.about-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-primary);
  box-shadow: var(--box-shadow-premium);
}

.about-card-icon {
  width: 60px;
  height: 60px;
  background-color: rgba(194, 146, 85, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 25px auto;
  color: var(--color-primary);
  transition: var(--transition-normal);
}

.about-card:hover .about-card-icon {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  transform: scale(1.1);
}

.about-card-icon svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

.about-card h3 {
  font-size: 18px;
  margin-bottom: 15px;
  text-transform: uppercase;
}

.about-card p {
  font-size: 14px;
  line-height: 1.6;
}

.about-branding-section {
  background-color: var(--color-dark);
  color: var(--color-text-light);
  padding: 60px;
  border-left: 5px solid var(--color-primary);
  position: relative;
  overflow: hidden;
}

.branding-content h3 {
  color: var(--color-text-light);
  font-size: 24px;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.branding-content p {
  color: var(--color-text-dim);
  font-size: 15px;
  max-width: 850px;
  margin-bottom: 40px;
  line-height: 1.7;
}

.branding-highlights {
  display: flex;
  gap: 60px;
  flex-wrap: wrap;
}

.highlight-item {
  display: flex;
  flex-direction: column;
}

.highlight-item .num {
  font-family: var(--font-heading);
  font-size: 38px;
  font-weight: 700;
  color: var(--color-primary-light);
  line-height: 1;
}

.highlight-item .txt {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 8px;
}

/* ==========================================================================
   5. Services Section
   ========================================================================== */
.services-section {
  background-color: var(--color-bg-warm);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.service-item-card {
  background-color: var(--color-bg-white);
  padding: 50px 35px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: var(--box-shadow-premium);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: var(--transition-normal);
}

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

.service-icon-box {
  width: 50px;
  height: 50px;
  color: var(--color-primary);
  margin-bottom: 30px;
}

.service-icon-box svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.service-item-card h3 {
  font-size: 20px;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.service-item-card p {
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 30px;
  flex-grow: 1;
}

.service-link {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
  display: inline-flex;
  align-items: center;
}

.service-link:hover {
  color: var(--color-primary-dark);
  transform: translateX(5px);
}

/* ==========================================================================
   6. Work Process Section
   ========================================================================== */
.process-section {
  background-color: var(--color-bg-white);
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::after {
  content: '';
  position: absolute;
  width: 2px;
  background-color: var(--color-bg-light);
  top: 0;
  bottom: 0;
  left: 40px;
  margin-left: -1px;
  z-index: 1;
}

.timeline-item {
  padding: 10px 0 40px 80px;
  position: relative;
  min-height: 120px;
  z-index: 2;
}

.timeline-number {
  position: absolute;
  left: 15px;
  top: 10px;
  width: 50px;
  height: 50px;
  background-color: var(--color-bg-white);
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  transition: var(--transition-normal);
}

.timeline-item:hover .timeline-number {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  transform: scale(1.1);
  box-shadow: 0 0 15px rgba(194, 146, 85, 0.4);
}

.timeline-content h4 {
  font-size: 18px;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.timeline-content p {
  font-size: 14.5px;
  line-height: 1.6;
}

/* ==========================================================================
   7. Cost Estimator Section
   ========================================================================== */
.estimator-section {
  background-color: var(--color-dark);
  color: var(--color-text-light);
}

.estimator-grid {
  display: grid;
  grid-template-columns: 45% 55%;
  gap: 50px;
  align-items: center;
}

.estimator-desc {
  color: var(--color-text-dim);
  font-size: 15px;
  margin-bottom: 30px;
}

.estimator-note {
  display: flex;
  gap: 15px;
  background-color: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--color-primary);
  padding: 20px;
}

.estimator-note svg {
  width: 24px;
  height: 24px;
  fill: var(--color-primary-light);
  flex-shrink: 0;
}

.estimator-note p {
  font-size: 13px;
  color: var(--color-text-dim);
  line-height: 1.5;
}

.estimator-card {
  background-color: var(--color-dark-surface);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 40px;
  box-shadow: 0 30px 60px rgba(0,0,0,0.3);
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text-dim);
  margin-bottom: 10px;
}

.form-group select,
.form-group input[type="number"],
.form-group input[type="text"],
.form-group input[type="tel"],
.form-group textarea {
  width: 100%;
  padding: 14px;
  background-color: rgba(18, 21, 23, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-text-light);
  font-family: var(--font-body);
  font-size: 14px;
  border-radius: 0;
  outline: none;
  transition: var(--transition-fast);
}

.form-group select:focus,
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 8px rgba(194, 146, 85, 0.25);
}

.form-row {
  display: flex;
  gap: 20px;
}

.col-6 {
  width: 50%;
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 10px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--color-text-dim);
  cursor: pointer;
}

.checkbox-label input {
  accent-color: var(--color-primary);
  width: 16px;
  height: 16px;
}

/* Estimator Result */
.estimator-result {
  margin-top: 30px;
  animation: fadeIn 0.4s ease;
}

.estimator-result.hidden {
  display: none;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.result-divider {
  width: 100%;
  height: 1px;
  background-color: rgba(255, 255, 255, 0.1);
  margin-bottom: 24px;
}

.result-item {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  color: var(--color-text-dim);
  margin-bottom: 12px;
}

.result-item strong {
  color: var(--color-text-light);
}

.result-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: rgba(194, 146, 85, 0.08);
  border: 1px dashed var(--color-primary);
  padding: 16px 20px;
  margin-bottom: 24px;
}

.result-total span:first-child {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--color-primary-light);
}

.total-price {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 700;
  color: var(--color-primary-light);
}

.result-cta {
  margin-top: 10px;
}

/* ==========================================================================
   8. Featured Projects
   ========================================================================== */
.projects-section {
  background-color: var(--color-bg-white);
}

.project-filters {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.filter-btn {
  background: none;
  border: 1px solid var(--color-bg-light);
  padding: 10px 24px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: var(--transition-normal);
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  border-color: var(--color-primary);
  box-shadow: 0 5px 15px rgba(194, 146, 85, 0.15);
}

/* Dynamic Project Showcase Container */
.showcase-container {
  width: 100%;
  margin-top: 30px;
}

.showcase-grid {
  display: flex;
  gap: 24px;
  height: 620px; /* Fixed height to ensure consistent layout across slides */
  align-items: stretch;
}

.showcase-left {
  width: 35%;
  display: flex;
}

.showcase-left img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  box-shadow: var(--box-shadow-premium);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.showcase-right {
  width: 65%;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.showcase-right-top {
  display: flex;
  gap: 24px;
  height: calc(50% - 12px);
}

.showcase-info-card {
  width: 50%;
  background-color: var(--color-primary);
  color: var(--color-text-light);
  padding: 35px 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  box-shadow: var(--box-shadow-premium);
  border-left: 4px solid var(--color-primary-light);
}

.showcase-type {
  font-size: 11px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.showcase-info-card h3 {
  font-family: var(--font-heading);
  font-size: 24px;
  color: var(--color-text-light);
  margin-bottom: 12px;
  text-transform: uppercase;
  line-height: 1.25;
  font-weight: 600;
}

.showcase-divider {
  width: 40px;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.3);
  margin-bottom: 18px;
}

.showcase-meta {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.meta-item strong {
  color: rgba(255, 255, 255, 0.7);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 10px;
  letter-spacing: 0.5px;
  display: block;
  margin-bottom: 2px;
}

.meta-item span {
  font-weight: 500;
  font-size: 14.5px;
}

.showcase-right-top .showcase-img-container {
  width: 50%;
}

.showcase-right-bottom {
  display: flex;
  gap: 24px;
  height: calc(50% - 12px);
}

.showcase-right-bottom .showcase-img-container {
  width: 50%;
}

.showcase-img-container {
  position: relative;
  overflow: hidden;
}

.showcase-img-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  box-shadow: var(--box-shadow-premium);
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: var(--transition-slow);
}

.showcase-img-container:hover img {
  transform: scale(1.04);
}

/* Animations */
@keyframes fadeEffect {
  from { opacity: 0.3; transform: scale(0.99); }
  to { opacity: 1; transform: scale(1); }
}

.animate-fade {
  animation: fadeEffect 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Slider Controls */
.showcase-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 40px;
  gap: 20px;
}

.ctrl-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-bg-light);
  background-color: var(--color-bg-white);
  color: var(--color-text-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-normal);
  box-shadow: var(--box-shadow-premium);
}

.ctrl-btn:hover {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(194, 146, 85, 0.2);
}

.ctrl-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.showcase-dots {
  display: flex;
  gap: 10px;
  align-items: center;
}

.showcase-dot {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--color-bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-normal);
  background-color: var(--color-bg-white);
  color: var(--color-text-muted);
}

.showcase-dot:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.showcase-dot.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-light);
  font-weight: 700;
  transform: scale(1.1);
  box-shadow: 0 5px 15px rgba(194, 146, 85, 0.25);
}

/* ==========================================================================
   9. Testimonials
   ========================================================================== */
.testimonials-section {
  background-color: var(--color-bg-warm);
}

.testimonials-slider {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  text-align: center;
}

.testimonial-slide {
  padding: 0 40px;
  display: none;
  animation: slideFadeIn 0.5s ease;
}

.testimonial-slide.active {
  display: block;
}

@keyframes slideFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.testimonial-quote {
  font-size: 20px;
  font-style: italic;
  line-height: 1.8;
  color: var(--color-text-dark);
  margin-bottom: 30px;
  position: relative;
}

.testimonial-quote::before {
  content: '“';
  font-family: var(--font-heading);
  font-size: 120px;
  color: rgba(194, 146, 85, 0.1);
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.testimonial-author h4 {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 5px;
}

.testimonial-author p {
  font-size: 12px;
  color: var(--color-primary);
}

/* ==========================================================================
   10. Contact Form & Map
   ========================================================================== */
.contact-section {
  background-color: var(--color-bg-white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 50% 50%;
  gap: 50px;
}

.contact-form-container {
  background-color: var(--color-bg-warm);
  border: 1px solid var(--color-bg-light);
  padding: 50px;
  box-shadow: var(--box-shadow-premium);
}

.form-intro-desc {
  font-size: 14px;
  margin-bottom: 30px;
}

.contact-form-container input,
.contact-form-container select,
.contact-form-container textarea {
  background-color: var(--color-bg-white);
  border: 1px solid rgba(0, 0, 0, 0.08);
  color: var(--color-text-dark);
}

.contact-form-container input::placeholder,
.contact-form-container textarea::placeholder {
  color: #999;
}

.form-success-msg {
  margin-top: 20px;
  padding: 15px 20px;
  background-color: rgba(46, 204, 113, 0.1);
  border-left: 3px solid #2ecc71;
  color: #27ae60;
  font-size: 13px;
  line-height: 1.5;
}

.form-success-msg.hidden {
  display: none;
}

/* Info Details Box */
.info-details-box {
  margin-bottom: 30px;
}

.info-details-box h3 {
  font-size: 22px;
  margin-bottom: 30px;
  text-transform: uppercase;
}

.contact-item-row {
  display: flex;
  gap: 20px;
  margin-bottom: 25px;
}

.contact-item-row svg {
  width: 24px;
  height: 24px;
  fill: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-item-row strong {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-dark);
  display: block;
  margin-bottom: 5px;
}

.contact-item-row p,
.contact-item-row a {
  font-size: 14.5px;
  color: var(--color-text-muted);
}

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

/* Map Wrapper */
.map-wrapper {
  width: 100%;
  height: 300px;
  position: relative;
  box-shadow: var(--box-shadow-premium);
  border: 1px solid var(--color-bg-light);
}

.simulated-map {
  width: 100%;
  height: 100%;
  position: relative;
  background-color: #e5e3df;
}

.map-marker {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -100%);
  z-index: 10;
}

.marker-pin {
  width: 30px;
  height: 30px;
  border-radius: 50% 50% 50% 0;
  background: var(--color-primary);
  position: absolute;
  transform: rotate(-45deg);
  left: 50%;
  top: 50%;
  margin: -15px 0 0 -15px;
}

.marker-pin::after {
  content: '';
  width: 14px;
  height: 14px;
  margin: 8px 0 0 8px;
  background: #fff;
  position: absolute;
  border-radius: 50%;
}

.marker-pulse {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 50%;
  height: 14px;
  width: 14px;
  position: absolute;
  left: 50%;
  top: 50%;
  margin: 11px 0 0 -7px;
  transform: rotateX(55deg);
  z-index: -2;
}

.marker-pulse::after {
  content: "";
  border-radius: 50%;
  height: 40px;
  width: 40px;
  position: absolute;
  margin: -13px 0 0 -13px;
  animation: pulsate 1s ease-out infinite;
  opacity: 0;
  box-shadow: 0 0 1px 2px var(--color-primary);
}

@keyframes pulsate {
  0% { transform: scale(0.1, 0.1); opacity: 0; }
  50% { opacity: 1; }
  100% { transform: scale(1.2, 1.2); opacity: 0; }
}

.map-label {
  position: absolute;
  top: calc(50% - 70px);
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-dark);
  color: var(--color-text-light);
  padding: 10px 15px;
  border-radius: 4px;
  font-size: 11px;
  white-space: nowrap;
  box-shadow: 0 10px 20px rgba(0,0,0,0.15);
  z-index: 10;
  text-align: center;
  border: 1px solid var(--color-primary);
}

.map-label::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  border-width: 6px 6px 0;
  border-style: solid;
  border-color: var(--color-dark) transparent;
  display: block;
  width: 0;
}

.map-label strong {
  display: block;
  color: var(--color-primary-light);
  font-size: 12px;
  margin-bottom: 2px;
}

/* ==========================================================================
   11. Footer
   ========================================================================== */
#main-footer {
  background-color: var(--color-dark);
  color: var(--color-text-light);
  padding: 80px 0 60px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: 45% 25% 30%;
  gap: 40px;
}

.footer-brand h3 {
  color: var(--color-text-light);
  font-size: 26px;
  letter-spacing: 3px;
  margin-bottom: 15px;
}

.footer-tagline {
  color: var(--color-text-dim);
  font-size: 14px;
  margin-bottom: 30px;
  max-width: 350px;
}

.footer-copy {
  color: rgba(255, 255, 255, 0.3);
  font-size: 11px;
}

.footer-links h4,
.footer-social h4 {
  color: var(--color-text-light);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 25px;
}

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

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

.footer-links a {
  font-size: 13.5px;
  color: var(--color-text-dim);
}

.footer-links a:hover {
  color: var(--color-primary-light);
  padding-left: 5px;
}

.footer-social p {
  color: var(--color-text-dim);
  font-size: 13.5px;
  margin-bottom: 25px;
  line-height: 1.6;
}

.social-icons {
  display: flex;
  gap: 15px;
}

.social-icons a {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-dim);
  transition: var(--transition-normal);
}

.social-icons a:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
  color: var(--color-text-light);
  transform: translateY(-3px);
}

.social-icons svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* ==========================================================================
   12. Media Queries (Mobile Responsiveness)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 46px;
  }
  
  .about-grid,
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .showcase-grid {
    flex-direction: column;
    height: auto;
    min-height: auto;
  }

  .showcase-left {
    width: 100%;
    height: 400px;
  }

  .showcase-right {
    width: 100%;
    gap: 20px;
  }

  .showcase-right-top,
  .showcase-right-bottom {
    flex-direction: column;
    height: auto;
    gap: 20px;
  }

  .showcase-info-card,
  .showcase-right-top .showcase-img-container,
  .showcase-right-bottom .showcase-img-container {
    width: 100%;
  }

  .showcase-img-container {
    height: 280px;
  }

  .estimator-grid,
  .contact-grid,
  .footer-grid {
    grid-template-columns: 100%;
    gap: 40px;
  }
  
  .estimator-info,
  .contact-info-container {
    order: 2;
  }
  
  .estimator-card,
  .contact-form-container {
    order: 1;
  }
}

@media (max-width: 768px) {
  section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 28px;
  }

  .hero-title {
    font-size: 34px;
  }
  
  .hero-subtitle {
    font-size: 14.5px;
  }
  
  .hero-actions {
    flex-direction: column;
    gap: 12px;
  }
  
  .hero-actions .btn {
    width: 100%;
  }

  /* Navigation menu mobile */
  .mobile-nav-toggle {
    display: flex;
  }

  #navbar {
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: var(--color-dark);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-in-out;
  }

  #navbar.active {
    max-height: 380px;
  }

  .nav-links {
    flex-direction: column;
    padding: 24px;
    gap: 20px;
  }

  .nav-links a {
    display: block;
    font-size: 14px;
  }

  .header-cta .btn-hotline {
    display: none; /* Hide hotline text button on mobile, show on top header or just phone link */
  }

  .about-grid,
  .services-grid {
    grid-template-columns: 100%;
  }

  .about-branding-section {
    padding: 30px 20px;
  }

  .branding-highlights {
    gap: 30px;
  }
  
  .timeline::after {
    left: 20px;
  }
  
  .timeline-item {
    padding-left: 50px;
  }
  
  .timeline-number {
    width: 40px;
    height: 40px;
    left: 0px;
    font-size: 15px;
  }

  .estimator-card {
    padding: 25px 20px;
  }

  .form-row {
    flex-direction: column;
    gap: 0;
  }

  .form-row .col-6 {
    width: 100%;
  }
  
  .contact-form-container {
    padding: 30px 20px;
  }
}