/* ==========================================================================
   SAVAN STUDIO - DESIGN SYSTEM & STYLES
   ========================================================================== */

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

/* --- Custom Properties --- */
:root {
  --color-bg-primary: #0A0A0A;
  --color-bg-secondary: #121212;
  --color-bg-card: #181818;
  --color-accent: #C5A880; /* Warm Brass */
  --color-accent-rgb: 197, 168, 128;
  --color-accent-hover: #D8C2A5;
  --color-text-primary: #F5F5F7;
  --color-text-secondary: #A0A0A5;
  --color-text-muted: #55555A;
  --color-border: rgba(197, 168, 128, 0.15);
  --color-border-subtle: rgba(255, 255, 255, 0.05);
  
  --font-heading: 'Syne', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --transition-smooth: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.25s ease;
  
  --container-padding: 0 8%;
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  position: relative;
  line-height: 1.6;
}

/* Architectural Grid Overlay background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: calc(100% / 6) 100%;
  z-index: 1;
  pointer-events: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent);
}

/* Selection Highlight */
::selection {
  background: var(--color-accent);
  color: var(--color-bg-primary);
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

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

p {
  color: var(--color-text-secondary);
  font-weight: 300;
  font-size: 1rem;
}

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

/* --- Reusable Components --- */
.container {
  max-width: 1600px;
  margin: 0 auto;
  padding: var(--container-padding);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  border-radius: 0;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-bg-primary);
  border: 1px solid var(--color-accent);
}

.btn-primary:hover {
  background: transparent;
  color: var(--color-accent);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Interactive underline button */
.btn-text {
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  padding-bottom: 4px;
  position: relative;
}

.btn-text::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0.3);
  transform-origin: left;
  transition: var(--transition-smooth);
}

.btn-text:hover::after {
  transform: scaleX(1);
}

.btn-text svg {
  transition: var(--transition-smooth);
}

.btn-text:hover svg {
  transform: translateX(5px);
}

/* Section Header styling */
.section-header {
  margin-bottom: 80px;
  position: relative;
  z-index: 2;
}

.section-tag {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--color-accent);
  display: block;
  margin-bottom: 12px;
  font-weight: 500;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: var(--color-text-primary);
}

/* --- Header & Navigation --- */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 100;
  transition: var(--transition-smooth);
  border-bottom: 1px solid transparent;
}

header.scrolled {
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-subtle);
  height: 70px;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: var(--container-padding);
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  letter-spacing: 0.05em;
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo span {
  font-weight: 800;
}

.logo-dot {
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  display: inline-block;
  border-radius: 50%;
}

.nav-menu {
  display: flex;
  gap: 40px;
  list-style: none;
}

.nav-link {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--color-text-secondary);
  position: relative;
  padding: 8px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.nav-link:hover::after, .nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

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

/* Mobile Menu Toggle button */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
  width: 30px;
  height: 24px;
  justify-content: center;
  z-index: 110;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-primary);
  transition: var(--transition-fast);
}

/* --- Subpage Hero Banner --- */
.subpage-hero {
  height: 350px;
  background: linear-gradient(to bottom, rgba(10, 10, 10, 0.6) 0%, rgba(10, 10, 10, 0.95) 100%), 
              url('assets/hero_architecture.png') center/cover no-repeat;
  display: flex;
  align-items: center;
  position: relative;
  border-bottom: 1px solid var(--color-border-subtle);
  overflow: hidden;
  margin-top: var(--header-height);
}

.subpage-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: calc(100% / 6) 100%;
  pointer-events: none;
}

.subpage-hero-container {
  position: relative;
  z-index: 5;
  width: 100%;
}

.subpage-hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 12px;
}

.breadcrumbs {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-text-secondary);
}

.breadcrumbs a {
  color: var(--color-accent);
}

.breadcrumbs span {
  margin: 0 8px;
  color: var(--color-text-muted);
}

/* --- Hero Section --- */
.hero {
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #000;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(10, 10, 10, 0.4) 0%, rgba(10, 10, 10, 0.9) 100%), 
              url('assets/hero_architecture.png') center/cover no-repeat;
  transform: scale(1.05);
  animation: slowZoom 20s infinite alternate ease-in-out;
  z-index: 2;
}

.hero-overlay-details {
  position: absolute;
  bottom: 40px;
  right: 8%;
  font-family: monospace;
  font-size: 0.7rem;
  color: var(--color-text-muted);
  line-height: 2;
  text-align: right;
  z-index: 5;
  pointer-events: none;
}

.hero-container {
  position: relative;
  z-index: 5;
  width: 100%;
  margin-top: 60px;
}

.hero-tag {
  font-size: 0.85rem;
  letter-spacing: 0.4em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 24px;
  display: inline-block;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s forwards 0.2s;
}

.hero-title {
  font-size: clamp(2.5rem, 7vw, 6.5rem);
  line-height: 0.95;
  margin-bottom: 30px;
  letter-spacing: -0.03em;
  font-weight: 800;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s forwards 0.4s;
}

.hero-desc {
  max-width: 550px;
  font-size: 1.1rem;
  margin-bottom: 48px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s forwards 0.6s;
}

.hero-actions {
  display: flex;
  gap: 20px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s forwards 0.8s;
}

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 8%;
  display: flex;
  align-items: center;
  gap: 15px;
  color: var(--color-text-secondary);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  z-index: 5;
}

.scroll-line {
  width: 40px;
  height: 1px;
  background: var(--color-border);
  position: relative;
  overflow: hidden;
}

.scroll-line::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-accent);
  animation: scrollLineAnim 2s infinite ease-in-out;
}

/* --- About Section --- */
.about {
  padding: 160px 0;
  background: var(--color-bg-secondary);
  position: relative;
}

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

.about-text-content {
  position: relative;
}

.about-text-content h2 {
  font-size: clamp(2rem, 3.5vw, 3rem);
  margin-bottom: 24px;
}

.about-text-content p {
  margin-bottom: 24px;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 48px;
  border-top: 1px solid var(--color-border);
  padding-top: 32px;
}

.stat-item h3 {
  font-size: clamp(2rem, 3vw, 3.2rem);
  color: var(--color-accent);
  margin-bottom: 8px;
}

.stat-item p {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
}

.about-image-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 4/5;
  overflow: hidden;
}

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

.about-image-wrapper:hover img {
  transform: scale(1.03);
}

.about-image-frame {
  position: absolute;
  top: 20px;
  left: 20px;
  width: calc(100% - 20px);
  height: calc(100% - 20px);
  border: 1px solid var(--color-border);
  pointer-events: none;
  z-index: 0;
}

/* --- Services Section --- */
.services {
  padding: 160px 0;
  background: var(--color-bg-primary);
  position: relative;
}

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

.service-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-subtle);
  padding: 50px 40px;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-smooth);
}

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

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

.service-num {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  color: rgba(255, 255, 255, 0.03);
  position: absolute;
  top: 30px;
  right: 40px;
  font-weight: 800;
  transition: var(--transition-smooth);
}

.service-card:hover .service-num {
  color: rgba(197, 168, 128, 0.1);
  transform: translateY(-5px);
}

.service-icon {
  margin-bottom: 30px;
  color: var(--color-accent);
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 16px;
  letter-spacing: 0;
}

.service-card p {
  font-size: 0.9rem;
  margin-bottom: 30px;
}

/* --- Portfolio / Works Section --- */
.portfolio {
  padding: 160px 0;
  background: var(--color-bg-secondary);
  position: relative;
}

.portfolio-filter {
  display: flex;
  gap: 32px;
  list-style: none;
  margin-bottom: 56px;
  border-bottom: 1px solid var(--color-border-subtle);
  padding-bottom: 20px;
  flex-wrap: wrap;
}

.filter-btn {
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 8px 0;
  position: relative;
  font-weight: 500;
  transition: var(--transition-fast);
}

.filter-btn::after {
  content: '';
  position: absolute;
  bottom: -21px; /* aligns perfectly over border bottom */
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: var(--transition-smooth);
}

.filter-btn:hover {
  color: var(--color-text-primary);
}

.filter-btn.active {
  color: var(--color-accent);
}

.filter-btn.active::after {
  transform: scaleX(1);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.portfolio-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/2;
  cursor: pointer;
  background: #000;
}

.portfolio-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  opacity: 0.85;
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(10, 10, 10, 0.9) 0%, rgba(10, 10, 10, 0.2) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 40px;
  transition: var(--transition-smooth);
}

.portfolio-category {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: 8px;
  transform: translateY(10px);
  opacity: 0;
  transition: var(--transition-smooth);
}

.portfolio-item h3 {
  font-size: clamp(1.25rem, 2vw, 1.8rem);
  letter-spacing: 0;
  margin-bottom: 12px;
  transform: translateY(15px);
  transition: var(--transition-smooth);
}

.portfolio-meta {
  display: flex;
  gap: 24px;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-weight: 300;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition-smooth);
}

.portfolio-item:hover .portfolio-img {
  transform: scale(1.05);
  opacity: 0.7;
}

.portfolio-item:hover .portfolio-category,
.portfolio-item:hover .portfolio-item h3,
.portfolio-item:hover .portfolio-meta {
  transform: translateY(0);
  opacity: 1;
}

/* Portfolio grid animations for filtering */
.portfolio-item {
  transition: opacity 0.4s ease, transform 0.4s ease, visibility 0.4s;
}

.portfolio-item.hidden {
  opacity: 0;
  transform: scale(0.95);
  position: absolute;
  pointer-events: none;
  visibility: hidden;
}

/* --- Project Modal Detail --- */
.project-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 200;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(12px);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-smooth);
  padding: 20px;
}

.project-modal.active {
  opacity: 1;
  pointer-events: all;
}

.modal-content-wrapper {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  width: 100%;
  max-width: 1100px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  opacity: 0;
  transform: scale(0.95);
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1) 0.1s;
}

.project-modal.active .modal-content-wrapper {
  opacity: 1;
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 24px;
  right: 24px;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-subtle);
  color: var(--color-text-primary);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 10;
  transition: var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-accent);
  color: var(--color-bg-primary);
  border-color: var(--color-accent);
}

.modal-img-container {
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.modal-img-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-body {
  padding: 48px;
}

.modal-grid {
  display: grid;
  grid-template-columns: 1.8fr 1.2fr;
  gap: 48px;
}

.modal-info-details {
  border-left: 1px solid var(--color-border);
  padding-left: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border-subtle);
  padding-bottom: 12px;
  font-size: 0.9rem;
}

.detail-row span:first-child {
  color: var(--color-text-secondary);
}

.detail-row span:last-child {
  font-weight: 500;
  color: var(--color-text-primary);
}

/* --- Process Section --- */
.process {
  padding: 160px 0;
  background: var(--color-bg-primary);
  position: relative;
}

.process-tabs {
  display: flex;
  gap: 20px;
  margin-bottom: 48px;
}

.process-tab-btn {
  flex: 1;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-subtle);
  padding: 24px;
  text-align: left;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.process-tab-btn.active {
  border-color: var(--color-accent);
  background: rgba(197, 168, 128, 0.03);
}

.process-step-num {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  color: var(--color-accent);
  display: block;
  margin-bottom: 8px;
}

.process-tab-btn h3 {
  font-size: 1.1rem;
  color: var(--color-text-primary);
  letter-spacing: 0.05em;
}

.process-content-panel {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-subtle);
  padding: 56px;
  min-height: 300px;
  display: none;
  animation: fadeIn 0.5s forwards;
}

.process-content-panel.active {
  display: block;
}

.process-content-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 56px;
}

.process-text h4 {
  font-size: 1.8rem;
  margin-bottom: 16px;
  color: var(--color-text-primary);
}

.process-text p {
  margin-bottom: 24px;
}

.process-deliverables {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-subtle);
  padding: 32px;
}

.process-deliverables h5 {
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: 20px;
}

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

.process-deliverables li {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.process-deliverables li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* --- Testimonials Section --- */
.testimonials {
  padding: 160px 0;
  background: var(--color-bg-secondary);
  position: relative;
  overflow: hidden;
}

.testimonial-slider {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  padding: 0 40px;
}

.testimonial-track {
  position: relative;
  min-height: 200px;
}

.testimonial-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.testimonial-item.active {
  opacity: 1;
  visibility: visible;
  position: relative;
}

.quote-icon {
  color: rgba(197, 168, 128, 0.2);
  margin-bottom: 24px;
}

.quote-text {
  font-size: clamp(1.2rem, 2vw, 1.8rem);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.5;
  color: var(--color-text-primary);
  margin-bottom: 30px;
}

.client-info h4 {
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.client-info p {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.slider-controls {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 48px;
}

.slider-btn {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.slider-btn:hover {
  background: var(--color-accent);
  color: var(--color-bg-primary);
  border-color: var(--color-accent);
}

/* --- Contact Section --- */
.contact {
  padding: 160px 0;
  background: var(--color-bg-primary);
  position: relative;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 80px;
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.info-card {
  border-left: 2px solid var(--color-accent);
  padding-left: 24px;
}

.info-card h4 {
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.info-card p, .info-card a {
  font-size: 1.1rem;
  color: var(--color-text-primary);
  font-weight: 300;
}

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

.contact-form-wrapper {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-subtle);
  padding: 56px;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.form-group {
  position: relative;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 300;
  outline: none;
  transition: var(--transition-fast);
}

.form-label {
  position: absolute;
  top: 16px;
  left: 0;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  pointer-events: none;
  transition: var(--transition-fast);
}

/* Float labels styling */
.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
  top: -12px;
  font-size: 0.75rem;
  color: var(--color-accent);
  letter-spacing: 0.05em;
}

.form-input:focus {
  border-bottom-color: var(--color-accent);
}

.form-error {
  font-size: 0.75rem;
  color: #E25C5C;
  position: absolute;
  bottom: -20px;
  left: 0;
  opacity: 0;
  transition: var(--transition-fast);
}

.form-group.error .form-input {
  border-bottom-color: #E25C5C;
}

.form-group.error .form-error {
  opacity: 1;
}

.form-btn-wrapper {
  grid-column: span 2;
  margin-top: 20px;
}

.form-success-msg {
  grid-column: span 2;
  background: rgba(197, 168, 128, 0.08);
  border: 1px solid var(--color-accent);
  padding: 24px;
  display: none;
  animation: fadeIn 0.5s forwards;
}

.form-success-msg h4 {
  color: var(--color-accent);
  margin-bottom: 8px;
}

.form-success-msg p {
  color: var(--color-text-primary);
  font-size: 0.9rem;
}

/* --- Footer --- */
footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border-subtle);
  padding: 80px 0;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

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

.footer-brand h3 {
  font-size: 1.3rem;
  color: var(--color-text-primary);
  margin-bottom: 16px;
}

.footer-brand p {
  max-width: 300px;
  font-size: 0.85rem;
}

.footer-links h4, .footer-newsletter h4 {
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.footer-links ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.footer-links a:hover {
  color: var(--color-accent);
  transform: translateX(4px);
}

.footer-newsletter p {
  margin-bottom: 20px;
  font-size: 0.85rem;
}

.newsletter-form {
  display: flex;
}

.newsletter-input {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-subtle);
  padding: 12px 16px;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  outline: none;
  flex: 1;
}

.newsletter-input:focus {
  border-color: var(--color-accent);
}

.newsletter-btn {
  background: var(--color-accent);
  border: 1px solid var(--color-accent);
  color: var(--color-bg-primary);
  padding: 12px 24px;
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 500;
  text-transform: uppercase;
  font-size: 0.85rem;
  transition: var(--transition-fast);
}

.newsletter-btn:hover {
  background: transparent;
  color: var(--color-accent);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--color-border-subtle);
  padding-top: 40px;
  flex-wrap: wrap;
  gap: 20px;
}

.social-links {
  display: flex;
  gap: 24px;
}

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

/* --- Scroll Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Delay modifiers for scroll reveals */
.reveal-delay-1 { transition-delay: 0.15s; }
.reveal-delay-2 { transition-delay: 0.3s; }
.reveal-delay-3 { transition-delay: 0.45s; }

/* --- Keyframe Animations --- */
@keyframes slowZoom {
  0% { transform: scale(1.02); }
  100% { transform: scale(1.08); }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes scrollLineAnim {
  0% { transform: scaleX(0); transform-origin: left; }
  50% { transform: scaleX(1); transform-origin: left; }
  51% { transform: scaleX(1); transform-origin: right; }
  100% { transform: scaleX(0); transform-origin: right; }
}

/* ==========================================================================
   MEDIA QUERIES (RESPONSIVENESS & TOUCH EXPERIENCE)
   ========================================================================== */

/* --- Laptops & Small Desktops (max-width: 1200px) --- */
@media (max-width: 1200px) {
  :root {
    --container-padding: 0 6%;
  }
  
  .about {
    padding: 120px 0;
  }
  
  .services, .portfolio, .process, .testimonials, .contact {
    padding: 120px 0;
  }
  
  .about-grid {
    gap: 50px;
  }
}

/* --- Tablets & Large Mobile Devices (max-width: 992px) --- */
@media (max-width: 992px) {
  header {
    height: 70px;
  }
  
  .nav-cta {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  /* Mobile Menu navigation drawer */
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: rgba(18, 18, 18, 0.98);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--color-border);
    flex-direction: column;
    padding: 120px 40px;
    gap: 28px;
    z-index: 105;
    transition: var(--transition-smooth);
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .about-image-wrapper {
    order: -1;
    max-height: 450px;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .process-tabs {
    flex-direction: column;
    gap: 10px;
  }
  
  .process-tab-btn {
    padding: 16px 20px;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* --- Tablets & Medium Screens (max-width: 768px) --- */
@media (max-width: 768px) {
  :root {
    --container-padding: 0 24px;
  }
  
  .about, .services, .portfolio, .process, .testimonials, .contact {
    padding: 80px 0;
  }
  
  .hero-overlay-details {
    bottom: 20px;
    right: 24px;
    font-size: 0.65rem;
  }
  
  .scroll-indicator {
    left: 24px;
  }
  
  .about-stats {
    gap: 20px;
  }
  
  .services-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
  }
  
  .service-card {
    padding: 40px 30px;
  }
  
  /* Project Modal Responsive Styles */
  .modal-content-wrapper {
    width: 95%;
    max-height: 85vh;
  }
  
  .modal-close {
    position: fixed;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    font-size: 1.2rem;
    background: rgba(10, 10, 10, 0.9);
    border: 1px solid var(--color-border);
  }
  
  .modal-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .modal-info-details {
    border-left: none;
    border-top: 1px solid var(--color-border-subtle);
    padding-left: 0;
    padding-top: 24px;
    gap: 16px;
  }
  
  .modal-body {
    padding: 24px;
  }
  
  .process-content-panel {
    padding: 30px 24px;
  }
  
  .process-content-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .process-deliverables {
    padding: 20px;
  }
  
  .contact-form-wrapper {
    padding: 32px 24px;
  }
  
  .contact-form {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .form-group.full-width {
    grid-column: span 1;
  }
  
  .form-btn-wrapper {
    grid-column: span 1;
  }
  
  .testimonial-slider {
    padding: 0 10px;
  }
}

/* --- Mobile Phones & Portrait Viewports (max-width: 576px) --- */
@media (max-width: 576px) {
  :root {
    --container-padding: 0 16px;
  }
  
  .about, .services, .portfolio, .process, .testimonials, .contact {
    padding: 60px 0;
  }
  
  .hero-tag {
    margin-bottom: 16px;
    font-size: 0.75rem;
    letter-spacing: 0.25em;
  }
  
  .hero-title {
    margin-bottom: 20px;
  }
  
  .hero-desc {
    margin-bottom: 36px;
    font-size: 0.95rem;
  }
  
  .hero-actions {
    flex-direction: column;
    gap: 12px;
    width: 100%;
  }
  
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
  
  .hero-overlay-details {
    display: none; /* Hide architectural metadata on very small screens to avoid clutter */
  }
  
  .scroll-indicator {
    display: none; /* Hide scroll line on small screens */
  }
  
  .about-stats {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 36px;
  }
  
  .stat-item {
    border-bottom: 1px solid var(--color-border-subtle);
    padding-bottom: 16px;
  }
  
  .stat-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }
  
  .about-image-wrapper {
    max-height: 300px;
  }
  
  .about-image-frame {
    top: 10px;
    left: 10px;
    width: calc(100% - 10px);
    height: calc(100% - 10px);
  }
  
  /* Portfolio Mobile Interactions (Always show details on touch screens) */
  @media (hover: none) {
    .portfolio-item .portfolio-overlay {
      background: linear-gradient(to top, rgba(10, 10, 10, 0.95) 0%, rgba(10, 10, 10, 0.4) 80%, rgba(10, 10, 10, 0.2) 100%);
      padding: 20px;
    }
    
    .portfolio-item .portfolio-img {
      opacity: 0.65;
    }
    
    .portfolio-item .portfolio-category,
    .portfolio-item h3,
    .portfolio-item .portfolio-meta {
      transform: translateY(0);
      opacity: 1;
    }
    
    .portfolio-meta {
      flex-direction: column;
      gap: 4px;
    }
  }
  
  .portfolio-filter {
    gap: 16px 20px;
    margin-bottom: 36px;
  }
  
  .filter-btn {
    font-size: 0.7rem;
  }
  
  .quote-text {
    font-size: 1.15rem;
    margin-bottom: 20px;
  }
  
  .quote-icon svg {
    width: 32px;
    height: 32px;
  }
  
  .slider-btn {
    width: 40px;
    height: 40px;
  }
  
  .footer-bottom {
    flex-direction: column-reverse;
    align-items: center;
    text-align: center;
    gap: 20px;
  }
  
  .social-links {
    justify-content: center;
    width: 100%;
  }
}