/* Custom Furniture Studio - Luxury Architectural Design System */

:root {
  /* Color Palette */
  --color-walnut: #3A2F2A;
  --color-stone: #E6DED6;
  --color-ivory: #FAF8F5;
  --color-brass: #C6A66A;
  --color-graphite: #1F1F1F;
  
  /* Typography */
  --font-serif: 'Playfair Display', 'Georgia', serif;
  --font-sans: 'Inter', 'Helvetica Neue', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --spacing-xxl: 10rem;
  
  /* Transitions */
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  color: var(--color-graphite);
  background-color: var(--color-ivory);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-walnut);
}

h1 {
  font-size: clamp(2.5rem, 8vw, 6rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 5vw, 4rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
}

p {
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  max-width: 65ch;
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(10px);
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--color-stone);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-walnut);
  text-decoration: none;
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
}

.nav-links a {
  color: var(--color-graphite);
  text-decoration: none;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: color var(--transition-base);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-brass);
  transition: width var(--transition-base);
}

.nav-links a:hover {
  color: var(--color-walnut);
}

.nav-links a:hover::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-walnut);
  cursor: pointer;
  position: relative;
  z-index: 1001;
  padding: var(--spacing-xs);
  transition: color var(--transition-base);
}

.menu-toggle:hover {
  color: var(--color-brass);
}

.menu-close {
  display: none;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--color-walnut);
  cursor: pointer;
  position: fixed;
  top: var(--spacing-sm);
  right: var(--spacing-md);
  z-index: 1002;
  padding: var(--spacing-xs);
  transition: color var(--transition-base);
  line-height: 1;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
}

.menu-close:hover {
  color: var(--color-brass);
}

.nav-links.active ~ .menu-close {
  display: flex;
}

/* Hero Sections - Unique Compositions */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: var(--spacing-xxl) var(--spacing-md) var(--spacing-xl);
  margin-top: 60px;
}

.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.hero-image {
  width: 100%;
  height: 80vh;
  object-fit: cover;
  background-color: var(--color-stone);
}

.hero-full {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-xxl) var(--spacing-md);
}

.hero-vertical {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xxl) var(--spacing-md);
}

/* Sections */
section {
  padding: var(--spacing-xl) var(--spacing-md);
}

.section-container {
  max-width: 1400px;
  margin: 0 auto;
}

.section-title {
  margin-bottom: var(--spacing-lg);
  text-align: left;
}

/* Grid Layouts */
.grid-asymmetric {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.grid-museum {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

/* Image Cards */
.image-card {
  position: relative;
  overflow: hidden;
  background-color: var(--color-stone);
  aspect-ratio: 4/3;
}

.image-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.image-card:hover img {
  transform: scale(1.05);
}

.image-card-caption {
  position: absolute;
  bottom: var(--spacing-sm);
  left: var(--spacing-sm);
  background-color: rgba(58, 47, 42, 0.9);
  color: var(--color-ivory);
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.9rem;
}

/* Horizontal Scroll */
.horizontal-scroll {
  display: flex;
  gap: var(--spacing-md);
  overflow-x: auto;
  padding: var(--spacing-md) 0;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.horizontal-scroll-item {
  flex: 0 0 400px;
  scroll-snap-align: start;
  background-color: var(--color-stone);
  aspect-ratio: 3/4;
}

.horizontal-scroll-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Process Steps */
.process-steps {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  margin: var(--spacing-lg) 0;
}

.process-step {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: var(--spacing-md);
  align-items: start;
  padding-left: var(--spacing-md);
  border-left: 2px solid var(--color-brass);
}

.step-number {
  font-family: var(--font-serif);
  font-size: 3rem;
  color: var(--color-brass);
  line-height: 1;
}

/* Manifesto Layout */
.manifesto {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

.manifesto-block {
  margin-bottom: var(--spacing-xl);
  padding-left: var(--spacing-md);
  border-left: 3px solid var(--color-walnut);
}

/* Contact Form */
.contact-section {
  background-color: var(--color-walnut);
  color: var(--color-ivory);
  padding: var(--spacing-xl) var(--spacing-md);
}

.contact-section h2 {
  text-align:center;
  color: var(--color-ivory);
}

.contact-form {
  max-width: 600px;
  margin: var(--spacing-lg) auto 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-group label {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-stone);
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: var(--spacing-sm);
  background-color: rgba(250, 248, 245, 0.1);
  border: 1px solid rgba(230, 222, 214, 0.3);
  color: var(--color-ivory);
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: border-color var(--transition-base);
}

.form-group select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23C6A66A' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-sm) center;
  background-size: 12px;
  padding-right: calc(var(--spacing-md) + 12px);
  cursor: pointer;
}

.form-group select:hover {
  border-color: rgba(198, 166, 106, 0.5);
}

.form-group select option {
  background-color: var(--color-walnut);
  color: var(--color-ivory);
  padding: var(--spacing-xs);
}

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

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.checkbox-group {
  display: flex;
  align-items: start;
  gap: var(--spacing-xs);
}

.checkbox-group input[type="checkbox"] {
  margin-top: 4px;
}

.submit-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-brass);
  color: var(--color-walnut);
  border: none;
  font-family: var(--font-sans);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: background-color var(--transition-base);
  align-self: flex-start;
}

.submit-btn:hover {
  background-color: var(--color-stone);
}

/* Footer */
footer {
  background-color: var(--color-walnut);
  color: var(--color-ivory);
  padding: var(--spacing-lg) var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.footer-section h3 {
  color: var(--color-ivory);
  font-size: 1rem;
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer-section p,
.footer-section a {
  color: var(--color-stone);
  text-decoration: none;
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer-section a:hover {
  color: var(--color-brass);
}

.footer-bottom {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(230, 222, 214, 0.2);
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-stone);
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mt-large {
  margin-top: var(--spacing-xl);
}

.mb-large {
  margin-bottom: var(--spacing-xl);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-ivory);
    flex-direction: column;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-stone);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .menu-close {
    display: none;
  }
  
  .nav-links.active ~ .menu-close {
    display: flex;
  }
  
  .hero-split {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .hero-image {
    height: 50vh;
  }
  
  .grid-museum {
    grid-template-columns: 1fr;
  }
  
  .process-step {
    grid-template-columns: 60px 1fr;
  }
  
  .step-number {
    font-size: 2rem;
  }
}

/* Extra Small Devices - 320px */
@media (max-width: 320px) {
  html {
    font-size: 14px;
  }
  
  nav {
    padding: var(--spacing-xs) var(--spacing-sm);
  }
  
  .logo {
    font-size: 1.2rem;
  }
  
  .nav-links {
    padding: var(--spacing-sm);
    gap: var(--spacing-xs);
  }
  
  .nav-links a {
    font-size: 0.8rem;
    padding: var(--spacing-xs) 0;
  }
  
  h1 {
    font-size: clamp(1.8rem, 10vw, 3rem);
  }
  
  h2 {
    font-size: clamp(1.5rem, 8vw, 2.5rem);
  }
  
  h3 {
    font-size: clamp(1.2rem, 6vw, 2rem);
  }
  
  p {
    font-size: 0.9rem;
  }
  
  section {
    padding: var(--spacing-md) var(--spacing-sm);
  }
  
  .hero {
    padding: var(--spacing-lg) var(--spacing-sm) var(--spacing-md);
    min-height: auto;
  }
  
  .hero-vertical {
    padding: var(--spacing-lg) var(--spacing-sm);
    min-height: auto;
  }
  
  .hero-full {
    padding: var(--spacing-lg) var(--spacing-sm);
  }
  
  .hero-image {
    height: 40vh;
  }
  
  .section-container {
    margin-top: 30px;
    padding: 0 var(--spacing-sm);
  }
  
  .grid-asymmetric,
  .grid-museum {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .horizontal-scroll-item {
    flex: 0 0 280px;
  }
  
  .process-step {
    grid-template-columns: 40px 1fr;
    gap: var(--spacing-sm);
    padding-left: var(--spacing-sm);
  }
  
  .step-number {
    font-size: 1.5rem;
  }
  
  .manifesto-block {
    padding-left: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
  }
  
  .contact-form {
    padding: 0 var(--spacing-sm);
  }
  
  .form-group input,
  .form-group textarea,
  .form-group select {
    padding: var(--spacing-xs);
    font-size: 0.9rem;
  }
  
  .form-group select {
    padding-right: calc(var(--spacing-sm) + 12px);
    background-size: 10px;
  }
  
  .submit-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.85rem;
    width: 100%;
  }
  
  footer {
    padding: var(--spacing-md) var(--spacing-sm);
  }
  
  .footer-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .footer-section {
    margin-bottom: var(--spacing-sm);
  }
  
  .footer-section h3 {
    font-size: 0.9rem;
  }
  
  .footer-section p,
  .footer-section a {
    font-size: 0.8rem;
  }
  
  .image-card-caption {
    font-size: 0.75rem;
    padding: var(--spacing-xs);
  }
  
  /* Ensure all grid layouts become single column */
  [style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }
  
  /* Ensure flex containers wrap properly */
  [style*="display: flex"] {
    flex-wrap: wrap;
  }
  
  /* Adjust spacing for small screens */
  .spacing-xl,
  [style*="padding: var(--spacing-xl)"] {
    padding: var(--spacing-md) var(--spacing-sm) !important;
  }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.8s ease-out;
}