/*
  =========================================
  THE MONTGOMERY COMPANY - DESIGN SYSTEM
  Emphasis: Tradition, Luxury, Experience, Professionalism
  =========================================
*/

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700;900&family=Inter:wght@300;400;500;600;700&display=swap');

/* CSS Variables for Luxury Brand Palette */
:root {
  --color-primary: #1E1A17;      /* Rich Dark Bronze */
  --color-secondary: #2B2521;    /* Slate/Charcoal Slate */
  --color-bg-light: #F9F6F0;     /* Cream/Warm Alabaster */
  --color-bg-alt: #F3EFE9;       /* Soft Taupe-Grey */
  
  --color-gold: #C5A880;         /* Muted Brass Gold */
  --color-gold-hover: #D4AF37;   /* Metallic Bright Gold */
  --color-gold-dark: #A4845B;    /* Shadowed Gold */
  --color-gold-light: #E6D8C5;   /* Creamy Gold Tint */
  
  --color-sage: #3D4A3E;         /* Deep Forest/Sage green */
  --color-card-bg: #FFFFFF;
  --color-white: #FFFFFF;
  --color-border: #E5DFD5;
  --color-overlay: rgba(30, 26, 23, 0.4);
  
  /* Fonts */
  --font-heading: 'Cinzel', serif;
  --font-body: 'Inter', sans-serif;
  
  /* Layout & Transitions */
  --container-width: 1200px;
  --header-height: 80px;
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(30, 26, 23, 0.04);
  --shadow-md: 0 8px 24px rgba(30, 26, 23, 0.08);
  --shadow-lg: 0 16px 48px rgba(30, 26, 23, 0.12);
}

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

html {
  font-size: 62.5%; /* 1rem = 10px */
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1.6rem;
  line-height: 1.7;
  color: var(--color-primary);
  background-color: var(--color-bg-light);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg-light);
}
::-webkit-scrollbar-thumb {
  background: var(--color-gold);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-gold-dark);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.05em;
  color: var(--color-primary);
}

h1 {
  font-size: 4.8rem;
  font-weight: 700;
  text-transform: uppercase;
}

h2 {
  font-size: 3.6rem;
  text-transform: uppercase;
  position: relative;
  padding-bottom: 15px;
  margin-bottom: 30px;
}

h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 2px;
  background-color: var(--color-gold);
}

h2.center::after {
  left: 50%;
  transform: translateX(-50%);
}

h3 {
  font-size: 2.4rem;
  margin-bottom: 15px;
}

p {
  margin-bottom: 20px;
  font-weight: 300;
  color: var(--color-secondary);
}

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

/* Utilities */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.text-center { text-align: center; }
.section-padding { padding: 100px 0; }
.bg-alt { background-color: var(--color-bg-alt); }
.gold-text { color: var(--color-gold); }

/* Buttons & Links */
.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 16px 36px;
  border-radius: 0; /* Traditional luxury: sharp corners */
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-smooth);
}

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

.btn-primary:hover {
  background-color: var(--color-gold);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.btn-outline {
  border-color: var(--color-gold);
  color: var(--color-primary);
  background-color: transparent;
}

.btn-outline:hover {
  background-color: var(--color-gold);
  color: var(--color-primary);
  transform: translateY(-2px);
}

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

.btn-white:hover {
  background-color: var(--color-gold);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.btn-outline-white {
  border: 1px solid var(--color-white);
  color: var(--color-white);
  background-color: transparent;
}

.btn-outline-white:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
  transform: translateY(-2px);
}

/* Header & Navigation */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: var(--transition-smooth);
  border-bottom: 1px solid rgba(229, 223, 213, 0.1);
  background-color: rgba(30, 26, 23, 0.98); /* Solid dark bronze/charcoal by default for readability on subpages */
}

/* Home page transparent header when not scrolled */
body.home-page .main-header:not(.scrolled) {
  background-color: transparent;
  border-bottom: 1px solid rgba(229, 223, 213, 0.1);
}

.main-header.scrolled {
  background-color: rgba(30, 26, 23, 0.95);
  backdrop-filter: blur(12px);
  height: 70px;
  box-shadow: var(--shadow-md);
  border-bottom-color: rgba(229, 223, 213, 0.1);
}

.main-header.scrolled .nav-link {
  color: var(--color-white);
}

.main-header.scrolled .nav-logo h1 {
  color: var(--color-gold);
}

.main-header.scrolled .nav-logo p {
  color: var(--color-white);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-logo img {
  height: 48px;
  width: auto;
  display: block;
}

.nav-logo div {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.nav-logo h1 {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-gold);
  line-height: 1.1;
  margin: 0;
  padding: 0;
  transition: var(--transition-smooth);
}

.nav-logo p {
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1;
  margin: 0;
  padding: 0;
}

.main-nav {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.9);
  position: relative;
  padding: 8px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-gold);
  transition: var(--transition-smooth);
}

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

.nav-link:hover,
.nav-link.active {
  color: var(--color-gold) !important;
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 20px;
  position: relative;
  z-index: 1001;
}

.mobile-nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-gold);
  position: absolute;
  transition: var(--transition-smooth);
}

.mobile-nav-toggle span:nth-child(1) { top: 0; }
.mobile-nav-toggle span:nth-child(2) { top: 9px; }
.mobile-nav-toggle span:nth-child(3) { top: 18px; }

.mobile-nav-toggle.open span:nth-child(1) {
  transform: rotate(45deg);
  top: 9px;
}
.mobile-nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.mobile-nav-toggle.open span:nth-child(3) {
  transform: rotate(-45deg);
  top: 9px;
}

/* Hero Section */
.hero-section {
  position: relative;
  height: 90vh;
  min-height: 600px;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(30, 26, 23, 0.6), rgba(30, 26, 23, 0.8));
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  color: var(--color-white);
  text-align: center;
  max-width: 800px;
  padding: 0 24px;
}

.hero-content p {
  color: rgba(255, 255, 255, 0.9) !important;
}

.hero-title {
  font-size: 5.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-white);
  margin-bottom: 20px;
  animation: fadeInDown 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-subtitle {
  font-size: 2.0rem;
  font-family: var(--font-body);
  font-weight: 300;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 40px;
  animation: fadeInUp 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.3s forwards;
  opacity: 0;
}

.hero-actions {
  animation: fadeInUp 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.6s forwards;
  opacity: 0;
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: center;
}

.about-text h3 {
  font-weight: 400;
  text-transform: uppercase;
  color: var(--color-gold);
}

.about-text .lead {
  font-size: 2.0rem;
  line-height: 1.6;
  font-weight: 300;
  margin-bottom: 30px;
}

.about-image {
  position: relative;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.about-image::before {
  content: '';
  position: absolute;
  top: 15px;
  left: 15px;
  right: -15px;
  bottom: -15px;
  border: 1px solid var(--color-gold);
  z-index: -1;
  pointer-events: none;
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
  filter: grayscale(10%) contrast(105%);
}

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 40px;
}

.service-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  padding: 48px;
  position: relative;
  transition: var(--transition-smooth);
}

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

.service-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background-color: var(--color-gold);
  transition: var(--transition-smooth);
}

.service-card:hover::after {
  width: 100%;
}

.service-icon {
  margin-bottom: 30px;
}

.service-icon svg {
  width: 48px;
  height: 48px;
  fill: var(--color-gold);
}

.service-card h3 {
  text-transform: uppercase;
  font-size: 2.0rem;
  margin-bottom: 20px;
}

.service-card p {
  font-size: 1.5rem;
  color: var(--color-secondary);
}

/* Portfolio Highlights */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.portfolio-item {
  position: relative;
  overflow: hidden;
  height: 400px;
  border: 1px solid var(--color-border);
  cursor: pointer;
}

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

.portfolio-info {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(30, 26, 23, 0.85);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 40px;
  opacity: 0;
  transition: var(--transition-smooth);
  z-index: 2;
}

.portfolio-item:hover img {
  transform: scale(1.08);
}

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

.portfolio-info h4 {
  color: var(--color-white);
  text-transform: uppercase;
  font-size: 2.0rem;
  margin-bottom: 10px;
  transform: translateY(20px);
  transition: var(--transition-smooth);
}

.portfolio-info p {
  color: var(--color-gold);
  font-family: var(--font-heading);
  font-size: 1.2rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
  transform: translateY(20px);
  transition: var(--transition-smooth) 0.1s;
}

.portfolio-info .link {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  letter-spacing: 0.15em;
  color: var(--color-white);
  text-transform: uppercase;
  border-bottom: 1px solid var(--color-gold);
  align-self: flex-start;
  padding-bottom: 4px;
  transform: translateY(20px);
  transition: var(--transition-smooth) 0.2s;
}

.portfolio-item:hover .portfolio-info h4,
.portfolio-item:hover .portfolio-info p,
.portfolio-item:hover .portfolio-info .link {
  transform: translateY(0);
}

/* Reviews / Testimonials Section */
.testimonials-section {
  position: relative;
  background-color: var(--color-primary);
  color: var(--color-white);
}

.testimonials-section h2 {
  color: var(--color-white);
}

.testimonial-card {
  padding: 40px;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(229, 223, 213, 0.1);
  margin-bottom: 24px;
  transition: var(--transition-smooth);
}

.testimonial-card:hover {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--color-gold);
}

.testimonial-quote {
  font-style: italic;
  font-size: 1.7rem;
  font-weight: 300;
  line-height: 1.8;
  margin-bottom: 24px;
  position: relative;
  color: var(--color-gold-light);
}

.testimonial-quote::before {
  content: '“';
  font-family: var(--font-heading);
  font-size: 6rem;
  position: absolute;
  top: -30px;
  left: -20px;
  color: rgba(197, 168, 128, 0.15);
}

.testimonial-author {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold);
}

/* Full Gallery Pages Styles */
.gallery-header {
  padding: 180px 0 100px;
  text-align: center;
  background: linear-gradient(rgba(30, 26, 23, 0.05), rgba(30, 26, 23, 0.1)), var(--color-bg-alt);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 30px;
}

.gallery-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.gallery-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-gold);
}

.gallery-image-container {
  position: relative;
  height: 280px;
  overflow: hidden;
  cursor: pointer;
}

.gallery-image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.gallery-card:hover .gallery-image-container img {
  transform: scale(1.06);
}

.gallery-zoom-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(30, 26, 23, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-smooth);
}

.gallery-image-container:hover .gallery-zoom-overlay {
  opacity: 1;
}

.gallery-zoom-overlay svg {
  width: 36px;
  height: 36px;
  fill: var(--color-white);
}

.gallery-card-body {
  padding: 24px;
}

.gallery-card-body h3 {
  font-size: 1.8rem;
  text-transform: uppercase;
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.gallery-card-body p {
  font-size: 1.4rem;
  color: var(--color-secondary);
  margin-bottom: 0;
}

/* Lightbox Modal */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(18, 15, 13, 0.98);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lightbox.active {
  display: flex;
  opacity: 1;
}

.lightbox-content {
  max-width: 90%;
  max-height: 80vh;
  position: relative;
}

.lightbox-image {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  box-shadow: 0 0 30px rgba(0,0,0,0.5);
  border: 1px solid rgba(255,255,255,0.1);
}

.lightbox-close {
  position: absolute;
  top: -50px;
  right: 0;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 4rem;
  cursor: pointer;
}

.lightbox-caption {
  color: var(--color-gold);
  font-family: var(--font-heading);
  text-align: center;
  margin-top: 15px;
  font-size: 1.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 5rem;
  cursor: pointer;
  padding: 10px;
}

.lightbox-prev { left: -70px; }
.lightbox-next { right: -70px; }

/* Contact & Questionnaire Layout */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
}

.contact-info h3 {
  text-transform: uppercase;
  margin-bottom: 24px;
}

.info-item {
  display: flex;
  gap: 20px;
  margin-bottom: 30px;
}

.info-icon svg {
  width: 24px;
  height: 24px;
  fill: var(--color-gold);
}

.info-details h4 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 5px;
}

.info-details p,
.info-details a {
  font-size: 1.6rem;
  color: var(--color-secondary);
}

.social-links {
  display: flex;
  gap: 16px;
  margin-top: 40px;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  transition: var(--transition-smooth);
}

.social-link:hover {
  background-color: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-primary);
}

.social-link svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* Interactive Project Planner Form */
.planner-container {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  padding: 50px;
}

.planner-step {
  display: none;
}

.planner-step.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

.planner-header {
  margin-bottom: 35px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 20px;
}

.planner-progress {
  height: 3px;
  background-color: var(--color-border);
  margin-top: 15px;
  position: relative;
}

.planner-progress-bar {
  height: 100%;
  background-color: var(--color-gold);
  width: 25%;
  transition: var(--transition-smooth);
}

.planner-title {
  font-size: 2.2rem;
  text-transform: uppercase;
  margin-bottom: 5px;
}

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

.form-group label {
  display: block;
  font-size: 1.4rem;
  font-weight: 500;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
}

.form-control {
  width: 100%;
  padding: 16px;
  border: 1px solid var(--color-border);
  font-family: var(--font-body);
  font-size: 1.5rem;
  background-color: var(--color-bg-light);
  color: var(--color-primary);
  border-radius: 0;
  transition: var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-gold);
  background-color: var(--color-white);
}

.form-grid-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.option-card {
  border: 1px solid var(--color-border);
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.option-card:hover {
  border-color: var(--color-gold);
}

.option-card.selected {
  background-color: var(--color-bg-alt);
  border-color: var(--color-gold);
  box-shadow: 0 0 0 1px var(--color-gold);
}

.option-card h4 {
  font-size: 1.5rem;
  text-transform: uppercase;
  margin-bottom: 0;
}

.form-actions {
  display: flex;
  justify-content: space-between;
  margin-top: 40px;
}

/* Footer Styling */
.main-footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 80px 0 40px;
  border-top: 1px solid rgba(229, 223, 213, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 60px;
}

.footer-col h4 {
  color: var(--color-gold);
  font-size: 1.6rem;
  text-transform: uppercase;
  margin-bottom: 25px;
  letter-spacing: 0.1em;
}

.footer-col p {
  color: rgba(255,255,255,0.7);
  font-size: 1.4rem;
}

.footer-logo h3 {
  color: var(--color-white);
  font-size: 2.0rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 5px;
}

.footer-logo p {
  color: var(--color-gold);
  font-size: 1.0rem;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  margin-bottom: 20px;
}

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

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

.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 1.4rem;
}

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

.footer-contact p {
  margin-bottom: 12px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  font-size: 1.3rem;
  color: rgba(255,255,255,0.4);
  margin-bottom: 0;
}

/* Reviews Page Grid Layout */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 30px;
}

.testimonial-card.span-2 {
  grid-column: span 2;
}

.testimonial-card.span-3 {
  grid-column: span 3;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  h1 { font-size: 4.0rem; }
  h2 { font-size: 3.0rem; }
  .about-grid { gap: 40px; }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-item:last-child { display: none; }
  
  /* Collapse reviews layout grid to 2 columns and collapse span-3 cards to span 2 */
  .reviews-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
  .testimonial-card.span-3 {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }
  
  .main-header {
    background-color: var(--color-primary);
  }
  
  .nav-logo h1 {
    color: var(--color-gold);
  }
  
  .nav-logo p {
    color: var(--color-white);
  }
  
  .mobile-nav-toggle {
    display: block;
  }
  
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background-color: var(--color-primary);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 40px;
    transform: translateX(100%);
    transition: var(--transition-smooth);
    z-index: 999;
    overflow-y: auto; /* Allow menu scrolling in landscape mode */
  }
  
  .main-nav.open {
    transform: translateX(0);
  }
  
  .nav-link {
    font-size: 1.8rem;
    color: var(--color-white);
  }
  
  .hero-title { font-size: 3.8rem; }
  .hero-subtitle { font-size: 1.5rem; }

  /* Fixed backgrounds render poorly on mobile (iOS Safari zooms/jumps); use scroll */
  .hero-section {
    background-attachment: scroll;
    height: auto;
    min-height: 90vh;
    padding: 100px 0;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }
  
  .about-image {
    order: -1;
    max-width: 500px;
    margin: 0 auto;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }
  
  /* Testimonial grid span overrides for mobile */
  .testimonial-card.span-2,
  .testimonial-card.span-3 {
    grid-column: span 1;
  }
  
  /* Lightbox buttons: fix typo and place them on-screen for mobile touch targets */
  .lightbox-prev, .lightbox-next {
    font-size: 3.5rem;
  }
  .lightbox-prev { left: 15px; }
  .lightbox-next { right: 15px; }
}

@media (max-width: 576px) {
  /* Stack hero CTA buttons vertically on mobile for touch ergonomics and spacing */
  .hero-actions {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
  }
  .hero-actions .btn {
    width: 100%;
    max-width: 280px;
    margin-left: 0 !important; /* Reset inline horizontal margin */
    text-align: center;
  }
}

@media (max-width: 480px) {
  .portfolio-grid { grid-template-columns: 1fr; }
  .portfolio-item:last-child { display: block; }
  .footer-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .form-grid-options { grid-template-columns: 1fr; }
  .planner-container { padding: 30px 20px; }
  
  /* Services & Reviews grids stack fully with reduced spacing on mobile */
  .services-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  /* Stacking Project Planner Form action buttons for ergonomic tap layout */
  .form-actions {
    flex-direction: column-reverse;
    gap: 12px;
  }
  .form-actions .btn {
    width: 100%;
    text-align: center;
    padding: 14px 20px;
  }
}

@media (max-width: 360px) {
  /* Global scaling and logo optimization for ultra-small devices (e.g., iPhone SE) */
  html { font-size: 55%; }
  .hero-title { font-size: 3.2rem; }
  .nav-logo h1 { font-size: 1.8rem; }
  .nav-logo p { font-size: 0.8rem; }
}