/* 
  ABNEE BUILT - Main Stylesheet
  Architectural & Construction Premium Design System
*/

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;600;700;800&family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  --primary: #111827;           /* Deep Charcoal / Steel Navy */
  --primary-light: #1F2937;     /* Slate Steel */
  --accent: #C5A059;            /* Architectural Gold / Brass */
  --accent-hover: #A8833F;      /* Rich Gold Hover */
  --accent-light: #F7F3E9;      /* Subtle Gold Tint */
  --bg-light: #FAF9F6;          /* Architectural Linen Off-White */
  --bg-card: #FFFFFF;           /* Crisp White */
  --bg-dark: #0B0F17;           /* Deep Night Slate */
  --text-main: #111827;         /* High Contrast Charcoal */
  --text-muted: #4B5563;        /* Muted Body Grey */
  --text-light: #F9FAFB;        /* Off-White Text */
  --border-color: #E5E7EB;      /* Clean Light Border */
  --border-dark: #1F2937;       /* Dark Mode Border */
  
  --font-heading: 'Cinzel', serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
  --shadow-hover: 0 20px 40px rgba(0,0,0,0.16);
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-light);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--primary);
  line-height: 1.25;
  letter-spacing: 0.02em;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); font-weight: 700; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.75rem); font-weight: 700; }
h3 { font-size: clamp(1.25rem, 2vw, 1.75rem); font-weight: 600; }
h4 { font-size: 1.25rem; font-weight: 600; }

p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 1rem;
}

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

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

/* Layout Containers */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-padding {
  padding: 5rem 0;
}

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

/* Badge / Eyebrow Tag */
.tag-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background-color: var(--accent-light);
  border: 1px solid rgba(197, 160, 89, 0.3);
  color: #8C6A23;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 50px;
  margin-bottom: 1.25rem;
}

.tag-eyebrow-dark {
  background-color: rgba(197, 160, 89, 0.15);
  border-color: rgba(197, 160, 89, 0.4);
  color: var(--accent);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.9rem 2rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent);
  color: #FFFFFF;
  border-color: var(--accent);
  box-shadow: 0 4px 14px rgba(197, 160, 89, 0.3);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(197, 160, 89, 0.4);
}

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

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

.btn-outline-white {
  background-color: transparent;
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.4);
}

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

.btn-sm {
  padding: 0.6rem 1.25rem;
  font-size: 0.875rem;
}

/* Header & Sticky Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: var(--transition);
}

.site-header.scrolled {
  background-color: #FFFFFF;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 85px;
  transition: var(--transition);
}

.site-header.scrolled .nav-container {
  height: 72px;
}

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary) 0%, #1F2937 100%);
  border: 1px solid var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  overflow: hidden;
}

.logo-icon img, .logo-icon-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
}

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

.logo-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.08em;
  line-height: 1;
}

.logo-tagline {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-top: 2px;
}

/* Nav Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--text-main);
  padding: 0.5rem 0;
  position: relative;
}

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

.nav-link:hover, .nav-link.active {
  color: var(--accent);
}

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

.nav-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--primary);
}

@media (max-width: 992px) {
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background-color: #FFFFFF;
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem 2rem 2rem;
    gap: 1.5rem;
    box-shadow: -10px 0 30px rgba(0,0,0,0.15);
    transition: var(--transition);
    z-index: 999;
  }

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

  .mobile-toggle {
    display: block;
    z-index: 1000;
  }

  .nav-cta {
    display: none;
  }
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 85px;
  background-color: var(--bg-dark);
  color: #FFFFFF;
  overflow: hidden;
}

.hero-bg-media {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-bg-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.45) contrast(1.1);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg, 
    rgba(11, 15, 23, 0.75) 0%, 
    rgba(11, 15, 23, 0.5) 50%, 
    rgba(11, 15, 23, 0.9) 100%
  );
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 820px;
}

.hero-title {
  color: #FFFFFF;
  font-size: clamp(2.5rem, 5.5vw, 4.25rem);
  font-weight: 700;
  margin-bottom: 1.25rem;
  line-height: 1.15;
}

.hero-title span {
  color: var(--accent);
  display: inline-block;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 2.25rem;
  max-width: 720px;
  font-weight: 400;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

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

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

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

@media (max-width: 992px) {
  .grid-3, .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .grid-3, .grid-4, .grid-2 {
    grid-template-columns: 1fr;
  }
}

/* Service Card */
.service-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2.25rem 2rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--primary) 100%);
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(197, 160, 89, 0.3);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 58px;
  height: 58px;
  background-color: var(--accent-light);
  color: var(--accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background-color: var(--accent);
  color: #FFFFFF;
}

.service-title {
  margin-bottom: 0.85rem;
  font-size: 1.35rem;
}

.service-desc {
  font-size: 0.975rem;
  color: var(--text-muted);
  flex-grow: 1;
  margin-bottom: 1.5rem;
}

.service-link {
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

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

/* Project Card */
.project-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.project-image-wrap {
  position: relative;
  width: 100%;
  padding-top: 65%;
  overflow: hidden;
  background-color: var(--primary-light);
}

.project-image-wrap img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.project-card:hover .project-image-wrap img {
  transform: scale(1.06);
}

.project-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background-color: rgba(17, 24, 39, 0.85);
  backdrop-filter: blur(8px);
  color: var(--accent);
  padding: 0.3rem 0.8rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid rgba(197, 160, 89, 0.4);
}

.project-info {
  padding: 1.75rem 1.5rem;
}

.project-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.project-desc {
  font-size: 0.925rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* Process Section */
.process-step {
  position: relative;
  background-color: var(--bg-card);
  padding: 2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.process-step:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.process-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: rgba(197, 160, 89, 0.25);
  line-height: 1;
  margin-bottom: 1rem;
}

.process-title {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

/* Gallery Section */
.gallery-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.filter-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.6rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
  background-color: var(--primary);
  color: #FFFFFF;
  border-color: var(--primary);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 280px;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(17, 24, 39, 0.9) 0%, rgba(17, 24, 39, 0.2) 60%, transparent 100%);
  opacity: 0;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
}

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

.gallery-title {
  color: #FFFFFF;
  font-size: 1.15rem;
  margin-bottom: 0.25rem;
}

.gallery-cat {
  color: var(--accent);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
}

/* Lightbox Modal */
.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background-color: rgba(11, 15, 23, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.lightbox-modal.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  max-width: 90vw;
  max-height: 85vh;
  position: relative;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: none;
  color: #FFFFFF;
  font-size: 2rem;
  cursor: pointer;
}

/* Contact Form & Cards */
.contact-wrapper {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.contact-info-panel {
  background: linear-gradient(135deg, var(--primary) 0%, #0F172A 100%);
  color: #FFFFFF;
  padding: 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-info-panel h3 {
  color: #FFFFFF;
  margin-bottom: 1rem;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.contact-info-icon {
  width: 46px;
  height: 46px;
  background-color: rgba(197, 160, 89, 0.15);
  border: 1px solid rgba(197, 160, 89, 0.3);
  color: var(--accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-form-panel {
  padding: 3rem 2.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-main);
  background-color: #FAF9F6;
  transition: var(--transition);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--accent);
  background-color: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(197, 160, 89, 0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
}

.form-alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-top: 1rem;
  font-size: 0.925rem;
  display: none;
}

.form-alert.success {
  display: block;
  background-color: #ECFDF5;
  border: 1px solid #10B981;
  color: #065F46;
}

.form-alert.error {
  display: block;
  background-color: #FEF2F2;
  border: 1px solid #EF4444;
  color: #991B1B;
}

/* Privacy Policy Box */
.policy-box {
  background-color: var(--bg-card);
  border: 2px dashed var(--accent);
  border-radius: var(--radius-md);
  padding: 3rem 2rem;
  text-align: center;
  margin: 2rem 0;
}

.policy-placeholder-title {
  font-size: 1.5rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.policy-instruction {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Footer */
.site-footer {
  background-color: var(--bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 5rem;
  padding-bottom: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

@media (max-width: 992px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .footer-top {
    grid-template-columns: 1fr;
  }
}

.footer-brand .logo-title {
  color: #FFFFFF;
}

.footer-desc {
  color: rgba(255, 255, 255, 0.6);
  margin-top: 1.25rem;
  font-size: 0.95rem;
}

.footer-heading {
  color: #FFFFFF;
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
}

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

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.925rem;
}

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

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.875rem;
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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