/* =============================================
   RJ Tubulação de Gás — Design System
   Theme: Dark & Gold Premium
   ============================================= */

/* ── Google Fonts ─────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Playfair+Display:wght@700;800;900&display=swap');

/* ── CSS Variables ────────────────────────── */
:root {
  /* Gold palette */
  --gold-50: #FFF9E6;
  --gold-100: #FFF0BF;
  --gold-200: #FFE599;
  --gold-300: #FFD966;
  --gold-400: #DEAD4D;
  --gold-500: #C8963E;
  --gold-600: #B07D2F;
  --gold-700: #8A6124;
  --gold-800: #654619;
  --gold-900: #3F2C10;
  
  /* Dark palette — warm blue-gray */
  --dark-950: #0E1117;
  --dark-900: #151820;
  --dark-800: #1C2029;
  --dark-700: #252A35;
  --dark-600: #2E3440;
  --dark-500: #3E4555;
  --dark-400: #5A6378;
  --dark-300: #8892A4;
  --dark-200: #B0B8C8;
  --dark-100: #D0D6E0;
  
  /* Semantic */
  --bg-primary: var(--dark-900);
  --bg-secondary: var(--dark-800);
  --bg-card: rgba(28, 32, 41, 0.9);
  --bg-glass: rgba(200, 150, 62, 0.06);
  --text-primary: #F0F2F5;
  --text-secondary: #B0B8C8;
  --text-muted: #7A8499;
  --accent: var(--gold-500);
  --accent-hover: var(--gold-400);
  --accent-glow: rgba(200, 150, 62, 0.3);
  --border-subtle: rgba(200, 150, 62, 0.15);
  --border-accent: rgba(200, 150, 62, 0.4);

  /* Spacing */
  --section-padding: 100px 0;
  --container-width: 1200px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

/* ── Section Title ────────────────────────── */
.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title .label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  position: relative;
  padding: 0 20px;
}

.section-title .label::before,
.section-title .label::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 40px;
  height: 1px;
  background: var(--accent);
  opacity: 0.5;
}

.section-title .label::before { left: -30px; }
.section-title .label::after { right: -30px; }

.section-title h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
}

.section-title p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 16px auto 0;
}

/* ── Buttons ──────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-smooth);
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::before {
  opacity: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
  color: #0A0A0A;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
  color: #0A0A0A;
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}

.btn-outline:hover {
  background: var(--accent);
  color: #0A0A0A;
  transform: translateY(-2px);
}

/* ── Navbar ───────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all var(--transition-smooth);
}

.navbar.scrolled {
  background: rgba(21, 24, 32, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 2px 30px rgba(0,0,0,0.3);
  border-bottom: 1px solid var(--border-subtle);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.navbar-brand img {
  height: 48px;
  width: auto;
}

.navbar-brand .brand-text {
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.1;
}

.navbar-brand .brand-text span {
  color: var(--accent);
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.navbar-nav a {
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.navbar-nav a:hover,
.navbar-nav a.active {
  color: var(--accent);
  background: var(--bg-glass);
}

.navbar-cta .btn {
  padding: 10px 24px;
  font-size: 0.85rem;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 2px;
  background: var(--accent);
  transition: all var(--transition-fast);
  border-radius: 2px;
}

/* ── Hero Section ─────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--dark-900);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(14, 17, 23, 0.4) 0%,
    rgba(14, 17, 23, 0.2) 40%,
    rgba(21, 24, 32, 0.6) 70%,
    rgba(21, 24, 32, 1) 100%
  );
  z-index: 1;
}

/* Animated gradient orbs */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.3;
  animation: orbFloat 20s ease-in-out infinite;
}

.hero-orb-1 {
  width: 600px;
  height: 600px;
  background: var(--gold-500);
  top: -20%;
  right: -10%;
  animation-delay: 0s;
}

.hero-orb-2 {
  width: 400px;
  height: 400px;
  background: var(--gold-700);
  bottom: -10%;
  left: -5%;
  animation-delay: -7s;
}

.hero-orb-3 {
  width: 300px;
  height: 300px;
  background: var(--gold-400);
  top: 40%;
  left: 30%;
  opacity: 0.15;
  animation-delay: -14s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -40px) scale(1.1); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(40px, 30px) scale(1.05); }
}

/* Grain texture */
.hero-grain {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  z-index: 2;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 900px;
  padding: 0 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(200, 150, 62, 0.1);
  border: 1px solid var(--border-accent);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 28px;
  animation: fadeInUp 0.8s ease forwards;
  opacity: 0;
}

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

.hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 900;
  line-height: 1.05;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.2s forwards;
  opacity: 0;
}

.hero h1 .gold {
  background: linear-gradient(135deg, var(--gold-400), var(--gold-600));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero .subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.8;
  animation: fadeInUp 0.8s ease 0.4s forwards;
  opacity: 0;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.6s forwards;
  opacity: 0;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.7rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  animation: fadeInUp 0.8s ease 0.8s forwards;
  opacity: 0;
}

.scroll-indicator .mouse {
  width: 24px;
  height: 38px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  position: relative;
}

.scroll-indicator .mouse::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 8px;
  background: var(--accent);
  border-radius: 3px;
  animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
  0% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

/* ── About Section ────────────────────────── */
.about {
  padding: var(--section-padding);
  background: var(--bg-primary);
  position: relative;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--dark-700);
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

.about-image .experience-badge {
  position: absolute;
  bottom: 24px;
  right: 24px;
  background: rgba(21, 24, 32, 0.92);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  padding: 20px 28px;
  text-align: center;
}

.experience-badge .number {
  font-family: 'Playfair Display', serif;
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
}

.experience-badge .text {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-top: 4px;
}

.about-content .label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  display: block;
}

.about-content h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}

.about-content p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 32px;
  line-height: 1.8;
}

/* Stats */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.stat-item {
  text-align: center;
  padding: 24px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-smooth);
}

.stat-item:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
}

.stat-number {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 8px;
}

/* ── Services Section ─────────────────────── */
.services {
  padding: var(--section-padding);
  background: var(--dark-800);
  position: relative;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.service-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: all var(--transition-smooth);
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold-500), var(--gold-300));
  transform: scaleX(0);
  transition: transform var(--transition-smooth);
  transform-origin: left;
}

.service-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4),
              0 0 40px var(--accent-glow);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-glass);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  font-size: 1.5rem;
  color: var(--accent);
  transition: all var(--transition-smooth);
}

.service-card:hover .service-icon {
  background: var(--accent);
  color: var(--dark-900);
  transform: scale(1.1);
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text-primary);
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.service-card .service-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all var(--transition-fast);
}

.service-card .service-link:hover {
  gap: 14px;
}

/* ── Gallery Section ──────────────────────── */
.gallery {
  padding: var(--section-padding);
  background: var(--bg-primary);
  position: relative;
}

.gallery-swiper {
  width: 100%;
  padding-bottom: 50px; /* Space for pagination */
  position: relative;
}

.gallery-swiper .swiper-pagination-bullet {
  background: var(--dark-400);
  opacity: 0.6;
  width: 10px;
  height: 10px;
  transition: all var(--transition-fast);
}

.gallery-swiper .swiper-pagination-bullet-active {
  background: var(--accent);
  opacity: 1;
  width: 24px;
  border-radius: 5px;
}

.gallery-swiper .swiper-button-next,
.gallery-swiper .swiper-button-prev {
  color: var(--accent);
  background: rgba(28, 32, 41, 0.8);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-accent);
  backdrop-filter: blur(4px);
  transition: all var(--transition-fast);
}

.gallery-swiper .swiper-button-next::after,
.gallery-swiper .swiper-button-prev::after {
  font-size: 1.2rem;
  font-weight: bold;
}

.gallery-swiper .swiper-button-next:hover,
.gallery-swiper .swiper-button-prev:hover {
  background: var(--accent);
  color: var(--bg-primary);
  transform: scale(1.1);
}

@media (max-width: 768px) {
  .gallery-swiper .swiper-button-next,
  .gallery-swiper .swiper-button-prev {
    display: none; /* Hide arrows on mobile */
  }
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  background: var(--dark-700);
}

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

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

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

.gallery-item:hover::after {
  opacity: 1;
}

.gallery-item .caption {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  color: white;
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 1;
  transform: translateY(10px);
  opacity: 0;
  transition: all var(--transition-fast);
}

.gallery-item:hover .caption {
  transform: translateY(0);
  opacity: 1;
}

.gallery-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 24px;
  color: var(--text-muted);
}

.gallery-empty svg {
  width: 64px;
  height: 64px;
  margin-bottom: 16px;
  opacity: 0.3;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.95);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
  animation: fadeIn 0.3s ease;
}

.lightbox.active {
  display: flex;
}

.lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 80px rgba(0,0,0,0.5);
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.lightbox-close:hover {
  background: var(--accent);
  color: var(--dark-900);
}

/* ── Quote / Contact Section ──────────────── */
.contact {
  padding: var(--section-padding);
  background: var(--dark-800);
  position: relative;
}

.contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}

.contact-info h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.2;
}

.contact-info p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 40px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.contact-detail:hover {
  border-color: var(--border-accent);
}

.contact-detail .icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(200, 150, 62, 0.1);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-detail .info .label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.contact-detail .info .value {
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 500;
}

/* Form */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.contact-form h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.contact-form .form-subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--dark-700);
  border: 1px solid var(--dark-500);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--dark-400);
}

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

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888888' 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;
  padding-right: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-submit {
  margin-top: 8px;
}

.form-submit .btn {
  width: 100%;
  justify-content: center;
  padding: 16px 32px;
}

.form-message {
  margin-top: 16px;
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  display: none;
}

.form-message.success {
  display: block;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #22C55E;
}

.form-message.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #EF4444;
}

/* ── Footer ───────────────────────────────── */
.footer {
  padding: 60px 0 0;
  background: var(--dark-900);
  border-top: 1px solid var(--border-subtle);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 40px;
}

.footer-brand .brand-name {
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
}

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

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--dark-700);
  border: 1px solid var(--dark-500);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--dark-900);
  transform: translateY(-3px);
}

.footer-links h4 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 20px;
}

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

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid var(--dark-700);
  padding: 20px 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── WhatsApp FAB ─────────────────────────── */
.whatsapp-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-smooth);
  cursor: pointer;
  text-decoration: none;
  animation: fabPulse 3s ease-in-out infinite;
}

.whatsapp-fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-fab svg {
  width: 30px;
  height: 30px;
  fill: white;
}

.whatsapp-fab .tooltip {
  position: absolute;
  right: 72px;
  top: 50%;
  transform: translateY(-50%);
  background: white;
  color: #333;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.whatsapp-fab .tooltip::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -6px;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-left-color: white;
}

.whatsapp-fab:hover .tooltip {
  opacity: 1;
}

@keyframes fabPulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6), 0 0 0 12px rgba(37, 211, 102, 0.1); }
}

/* ── Scroll Reveal ────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

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

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

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

/* ── Responsive ───────────────────────────── */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .about-image {
    max-height: 400px;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 70px 0;
  }
  
  .navbar-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 100px 32px 32px;
    gap: 4px;
    transition: right var(--transition-smooth);
    border-left: 1px solid var(--border-subtle);
  }
  
  .navbar-nav.open {
    right: 0;
  }
  
  .navbar-nav a {
    display: block;
    padding: 14px 20px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
  }
  
  .navbar-cta {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .menu-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  .menu-toggle.open span:nth-child(2) {
    opacity: 0;
  }
  .menu-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .service-card {
    padding: 32px 24px;
  }
  
  .gallery-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .stats-row {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .hero h1 {
    font-size: clamp(2rem, 8vw, 3.5rem);
  }
  
  .scroll-indicator {
    display: none;
  }
}

@media (max-width: 480px) {
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }
  
  .contact-form {
    padding: 28px 20px;
  }
}

/* ── Mobile Nav Overlay ───────────────────── */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 998;
  display: none;
}

.nav-overlay.active {
  display: block;
}