/* ===================================
   Pro Tech Waterproofing Corp
   Main Stylesheet
   =================================== */

/* --- CSS Custom Properties --- */
:root {
  --navy: #1B2A4A;
  --navy-dark: #111D35;
  --navy-light: #243656;
  --steel-blue: #4A7C9B;
  --steel-blue-light: #6A9BB8;
  --slate: #5A6577;
  --slate-light: #8892A0;
  --warm-neutral: #F5F0EB;
  --warm-accent: #D4C5B2;
  --white: #FFFFFF;
  --off-white: #F8F9FA;
  --light-gray: #E9ECF0;
  --border-color: #DEE2E8;
  --text-primary: #1B2A4A;
  --text-secondary: #5A6577;
  --text-light: #8892A0;
  --shadow-sm: 0 1px 3px rgba(27,42,74,0.08);
  --shadow-md: 0 4px 12px rgba(27,42,74,0.1);
  --shadow-lg: 0 8px 30px rgba(27,42,74,0.12);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition: 0.3s ease;
  --max-width: 1200px;
  --header-height: 80px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text-primary);
  background-color: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

a:hover {
  color: var(--navy);
}

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--navy);
}

h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
}

h4 {
  font-size: 1.125rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section--gray {
  background-color: var(--off-white);
}

.section--warm {
  background-color: var(--warm-neutral);
}

.section--navy {
  background-color: var(--navy);
  color: var(--white);
}

.section--navy h2,
.section--navy h3,
.section--navy h4 {
  color: var(--white);
}

.section--navy p {
  color: rgba(255,255,255,0.8);
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  max-width: 640px;
  margin: 0 auto;
  font-size: 1.05rem;
}

.section-header .label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--steel-blue);
  margin-bottom: 0.75rem;
}

/* --- Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: var(--white);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo img {
  width: 40px;
  height: 40px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-text .name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
}

.logo-text .tagline {
  font-size: 0.7rem;
  color: var(--slate-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.main-nav a {
  display: block;
  padding: 0.5rem 0.9rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--navy);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-phone {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--navy);
  white-space: nowrap;
}

.header-phone:hover {
  color: var(--steel-blue);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  margin: 6px 0;
  transition: var(--transition);
  border-radius: 2px;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
  font-family: inherit;
}

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

.btn--primary:hover {
  background: var(--navy-light);
  border-color: var(--navy-light);
  color: var(--white);
}

.btn--secondary {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}

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

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

.btn--white:hover {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}

.btn--outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.5);
}

.btn--outline-white:hover {
  background: var(--white);
  color: var(--navy);
  border-color: var(--white);
}

.btn--sm {
  padding: 0.55rem 1.25rem;
  font-size: 0.85rem;
}

/* --- Hero --- */
.hero {
  position: relative;
  padding: calc(var(--header-height) + 4rem) 0 5rem;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  color: var(--white);
  overflow: hidden;
  min-height: 520px;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: url('../images/hero-restoration.jpg') center/cover no-repeat;
  opacity: 0.15;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero h1 {
  color: var(--white);
  margin-bottom: 1.25rem;
  max-width: 700px;
}

.hero .subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.85);
  max-width: 600px;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* --- Page Hero (inner pages) --- */
.page-hero {
  padding: calc(var(--header-height) + 3rem) 0 3rem;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  color: var(--white);
  text-align: center;
}

.page-hero h1 {
  color: var(--white);
  margin-bottom: 0.75rem;
}

.page-hero p {
  color: rgba(255,255,255,0.8);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.05rem;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
}

.breadcrumb a {
  color: rgba(255,255,255,0.6);
}

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

.breadcrumb span {
  color: rgba(255,255,255,0.4);
}

.breadcrumb .current {
  color: rgba(255,255,255,0.9);
}

/* --- Grid Systems --- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* --- Cards --- */
.card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
  border: 1px solid var(--border-color);
}

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

.card-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.card-body {
  padding: 1.5rem;
}

.card-body h3 {
  margin-bottom: 0.75rem;
  font-size: 1.15rem;
}

.card-body p {
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.card-meta {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- Service Cards --- */
.service-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 2rem;
  border: 1px solid var(--border-color);
  transition: all var(--transition);
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--steel-blue-light);
}

.service-card .icon {
  width: 48px;
  height: 48px;
  background: var(--warm-neutral);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--steel-blue);
  font-size: 1.25rem;
}

.service-card h3 {
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
}

.service-card p {
  font-size: 0.95rem;
  line-height: 1.65;
}

/* --- Feature List --- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-item {
  text-align: center;
  padding: 1.5rem;
}

.feature-item .icon {
  width: 56px;
  height: 56px;
  background: var(--warm-neutral);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  color: var(--steel-blue);
  font-size: 1.3rem;
}

.feature-item h4 {
  margin-bottom: 0.5rem;
}

.feature-item p {
  font-size: 0.9rem;
}

/* --- Property Types --- */
.property-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.property-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: var(--white);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--navy);
}

.property-item .dot {
  width: 8px;
  height: 8px;
  background: var(--steel-blue);
  border-radius: 50%;
  flex-shrink: 0;
}

/* --- Service Area Tags --- */
.area-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.area-tag {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50px;
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition);
}

.area-tag:hover {
  background: rgba(255,255,255,0.2);
  color: var(--white);
}

/* --- FAQ Accordion --- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border-color);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  font-family: inherit;
  transition: color var(--transition);
}

.faq-question:hover {
  color: var(--steel-blue);
}

.faq-question .toggle {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--slate-light);
  transition: transform var(--transition);
  flex-shrink: 0;
  margin-left: 1rem;
}

.faq-item.active .faq-question .toggle {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding-bottom: 1.25rem;
}

.faq-answer p {
  font-size: 0.95rem;
  line-height: 1.7;
}

/* --- Contact Info Block --- */
.contact-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-info-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-info-item .icon-circle {
  width: 44px;
  height: 44px;
  background: var(--warm-neutral);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--steel-blue);
  font-size: 1rem;
}

.contact-info-item h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-light);
  margin-bottom: 0.25rem;
  font-weight: 600;
}

.contact-info-item p {
  color: var(--navy);
  font-weight: 500;
  margin-bottom: 0;
}

.contact-info-item a {
  color: var(--navy);
  font-weight: 500;
}

.contact-info-item a:hover {
  color: var(--steel-blue);
}

/* --- Contact Form --- */
.contact-form {
  background: var(--white);
  padding: 2.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
}

.contact-form h3 {
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  font-family: inherit;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--off-white);
  color: var(--text-primary);
  transition: border-color var(--transition);
}

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

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* --- Map --- */
.map-container {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  height: 350px;
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* --- Footer --- */
.site-footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,0.7);
  padding: 4rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-col h4 {
  color: var(--white);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-about p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 1rem;
  color: rgba(255,255,255,0.6);
}

.footer-about .footer-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.footer-about .footer-logo img {
  width: 36px;
  height: 36px;
}

.footer-about .footer-logo .name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

.footer-links a {
  display: block;
  padding: 0.3rem 0;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}

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

.footer-contact p {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: rgba(255,255,255,0.6);
}

.footer-contact a {
  color: rgba(255,255,255,0.8);
}

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

.footer-bottom {
  padding: 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
}

.footer-bottom a {
  color: rgba(255,255,255,0.4);
}

.footer-bottom a:hover {
  color: rgba(255,255,255,0.7);
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

/* --- Project Detail Cards --- */
.project-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.project-card-img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.project-card-body {
  padding: 1.75rem;
}

.project-card-body h3 {
  margin-bottom: 1rem;
  font-size: 1.15rem;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.project-meta-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--warm-neutral);
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--slate);
}

.project-card-body .detail-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.project-card-body .detail-row strong {
  color: var(--navy);
  min-width: 130px;
  flex-shrink: 0;
}

.project-card-body .detail-row span {
  color: var(--text-secondary);
}

/* --- Service Area Content --- */
.area-section {
  padding: 2rem 0;
  border-bottom: 1px solid var(--border-color);
}

.area-section:last-child {
  border-bottom: none;
}

.area-section h3 {
  margin-bottom: 0.75rem;
}

.area-section p {
  max-width: 800px;
}

/* --- Service Detail Sections --- */
.service-detail {
  padding: 3rem 0;
  border-bottom: 1px solid var(--border-color);
}

.service-detail:last-child {
  border-bottom: none;
}

.service-detail-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.service-detail:nth-child(even) .service-detail-inner {
  direction: rtl;
}

.service-detail:nth-child(even) .service-detail-inner > * {
  direction: ltr;
}

.service-detail-content h3 {
  margin-bottom: 1rem;
  font-size: 1.35rem;
}

.service-detail-content p {
  font-size: 0.95rem;
  line-height: 1.75;
}

.service-detail-img {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.service-detail-img img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

/* --- About Page --- */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-intro-content h2 {
  margin-bottom: 1rem;
}

.about-intro-img {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.about-intro-img img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.approach-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  counter-reset: step;
}

.approach-step {
  text-align: center;
  padding: 1.5rem;
  counter-increment: step;
}

.approach-step::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--steel-blue);
  margin-bottom: 0.75rem;
  opacity: 0.5;
}

.approach-step h4 {
  margin-bottom: 0.5rem;
}

.approach-step p {
  font-size: 0.9rem;
}

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  padding: 4rem 0;
  text-align: center;
  color: var(--white);
}

.cta-banner h2 {
  color: var(--white);
  margin-bottom: 1rem;
}

.cta-banner p {
  color: rgba(255,255,255,0.8);
  max-width: 550px;
  margin: 0 auto 2rem;
  font-size: 1.05rem;
}

.cta-buttons {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Legal Pages --- */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
}

.legal-content h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.legal-content h3 {
  font-size: 1.15rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.legal-content p {
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.legal-content ul {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.legal-content ul li {
  list-style: disc;
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .approach-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .service-detail-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .service-detail:nth-child(even) .service-detail-inner {
    direction: ltr;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 3.5rem 0;
  }

  .menu-toggle {
    display: block;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--white);
    flex-direction: column;
    padding: 5rem 1.5rem 2rem;
    box-shadow: var(--shadow-lg);
    transition: right var(--transition);
    align-items: flex-start;
    gap: 0;
    z-index: 999;
  }

  .main-nav.open {
    right: 0;
  }

  .main-nav a {
    padding: 0.75rem 0;
    font-size: 1rem;
    width: 100%;
    border-bottom: 1px solid var(--border-color);
  }

  .header-cta {
    display: none;
  }

  .hero {
    padding: calc(var(--header-height) + 2rem) 0 3rem;
    min-height: auto;
  }

  .hero-buttons {
    flex-direction: column;
  }

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

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: 1fr;
  }

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

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

  .contact-block {
    grid-template-columns: 1fr;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }

  .about-intro {
    grid-template-columns: 1fr;
  }

  .approach-steps {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .page-hero {
    padding: calc(var(--header-height) + 2rem) 0 2rem;
  }
}

@media (max-width: 480px) {
  .property-grid {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 0 1rem;
  }
}

/* --- Mobile Nav Overlay --- */
.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.4);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* --- Utility --- */
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

/* SVG Icons inline */
.icon-svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}