/* ===================================
   HTM Interior Design - Main Styles
   =================================== */

/* CSS Custom Properties */
:root {
  /* Colors */
  --color-primary: #1A1A1A;
  --color-secondary: #C9A962;
  --color-secondary-dark: #B8984F;
  --color-accent: #8B9A7D;
  --color-bg-light: #F8F6F3;
  --color-bg-dark: #0D0D0D;
  --color-text: #1A1A1A;
  --color-text-secondary: #6B6B6B;
  --color-text-light: #FFFFFF;
  --color-border: #E5E5E5;

  /* Typography */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-accent: 'Cormorant Garamond', Georgia, serif;

  /* Spacing */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 48px;
  --space-xl: 80px;
  --space-2xl: 120px;

  /* Layout */
  --container-max: 1400px;
  --header-height: 80px;

  /* Transitions */
  --transition-fast: 200ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 600ms ease-out;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.2;
}

.section-label {
  display: inline-block;
  font-family: var(--font-accent);
  font-size: 14px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-size: clamp(32px, 5vw, 48px);
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
}

.section-title-light {
  color: var(--color-text-light);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 16px 32px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: var(--transition-base);
}

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

.btn-primary:hover {
  background-color: var(--color-secondary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(201, 169, 98, 0.3);
}

.btn-full {
  width: 100%;
}

/* ===================================
   Header
   =================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  transition: var(--transition-base);
}

.header.scrolled {
  background-color: rgba(248, 246, 243, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

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

.logo img {
  height: 40px;
  width: auto;
}

.nav-list {
  display: flex;
  gap: var(--space-lg);
}

.nav-link {
  position: relative;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.5px;
  color: var(--color-text-light);
  transition: var(--transition-base);
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-secondary);
  transition: var(--transition-base);
}

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

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

/* Mobile Navigation */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  z-index: 1001;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--color-text-light);
  transition: var(--transition-base);
}

.header.scrolled .nav-toggle span {
  background-color: var(--color-primary);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
  }

  .nav.active {
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
  }

  .nav-link {
    font-size: 24px;
    color: var(--color-text-light);
  }

  .nav-toggle.active span {
    background-color: var(--color-text-light);
  }
}

/* ===================================
   Hero Section
   =================================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: heroZoom 20s ease-out infinite alternate;
}

@keyframes heroZoom {
  from { transform: scale(1); }
  to { transform: scale(1.1); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(
    to bottom,
    rgba(13, 13, 13, 0.6) 0%,
    rgba(13, 13, 13, 0.4) 50%,
    rgba(13, 13, 13, 0.7) 100%
  );
}

.hero-content {
  text-align: center;
  color: var(--color-text-light);
  max-width: 900px;
}

.hero-title {
  font-size: clamp(40px, 8vw, 80px);
  font-weight: 400;
  margin-bottom: var(--space-md);
  line-height: 1.1;
}

.hero-word {
  display: inline-block;
  opacity: 0;
  transform: translateY(30px);
  animation: heroWordIn 0.8s ease-out forwards;
}

.hero-word:nth-child(1) { animation-delay: 0.3s; }
.hero-word:nth-child(2) { animation-delay: 0.5s; }
.hero-word:nth-child(3) { animation-delay: 0.7s; }

@keyframes heroWordIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-subtitle {
  font-family: var(--font-accent);
  font-size: clamp(18px, 3vw, 24px);
  font-weight: 400;
  letter-spacing: 2px;
  margin-bottom: var(--space-lg);
  opacity: 0;
  animation: fadeIn 0.8s ease-out 1s forwards;
}

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

.hero .btn {
  opacity: 0;
  animation: fadeIn 0.8s ease-out 1.2s forwards;
}

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-text-light);
  opacity: 0.7;
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}

/* ===================================
   About Section
   =================================== */
.about {
  padding: var(--space-2xl) 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.about-image {
  position: relative;
}

.about-image img {
  border-radius: 4px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.about-image-accent {
  position: absolute;
  top: 30px;
  left: -30px;
  width: 200px;
  height: 200px;
  border: 3px solid var(--color-secondary);
  border-radius: 4px;
  z-index: -1;
}

.about-text {
  font-size: 17px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.about-feature {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-primary);
}

.about-feature svg {
  color: var(--color-secondary);
}

@media (max-width: 968px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .about-image {
    order: -1;
  }

  .about-image-accent {
    display: none;
  }
}

/* ===================================
   Services Section
   =================================== */
.section {
  padding: var(--space-2xl) 0;
}

.section-dark {
  background-color: var(--color-primary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.service-card {
  background-color: rgba(255, 255, 255, 0.05);
  padding: var(--space-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--color-secondary);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-base);
}

.service-card:hover {
  transform: translateY(-8px);
  background-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

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

.service-icon {
  margin-bottom: var(--space-md);
  color: var(--color-secondary);
  transition: var(--transition-base);
}

.service-card:hover .service-icon {
  transform: scale(1.1);
}

.service-title {
  font-size: 22px;
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
}

.service-desc {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
}

/* ===================================
   Portfolio Section
   =================================== */
.portfolio {
  background-color: var(--color-bg-light);
}

.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: 30px;
  transition: var(--transition-base);
}

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

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.portfolio-item {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
}

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

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 50%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-md);
  opacity: 0;
  transition: var(--transition-base);
}

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

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

.portfolio-location {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-bottom: 4px;
}

.portfolio-name {
  font-size: 18px;
  color: var(--color-text-light);
  font-weight: 400;
}

@media (max-width: 968px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
}

/* ===================================
   Stats Section
   =================================== */
.stats {
  background: linear-gradient(135deg, var(--color-secondary) 0%, #D4B872 100%);
  padding: var(--space-xl) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  text-align: center;
}

.stat-item {
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -24px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 60px;
  background-color: rgba(26, 26, 26, 0.2);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 72px;
  font-weight: 400;
  color: var(--color-primary);
  line-height: 1;
}

.stat-suffix {
  font-family: var(--font-heading);
  font-size: 48px;
  color: var(--color-primary);
}

.stat-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-primary);
  opacity: 0.7;
  margin-top: var(--space-sm);
}

@media (max-width: 968px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .stat-item:not(:last-child)::after {
    display: none;
  }

  .stat-number {
    font-size: 48px;
  }

  .stat-suffix {
    font-size: 32px;
  }
}

/* ===================================
   Contact Section
   =================================== */
.contact {
  padding: var(--space-2xl) 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.contact-text {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-lg);
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact-item {
  display: flex;
  gap: var(--space-md);
}

.contact-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(201, 169, 98, 0.3);
  border-radius: 50%;
  color: var(--color-secondary);
  flex-shrink: 0;
}

.contact-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-bottom: 4px;
}

.contact-value {
  display: block;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.9);
  transition: var(--transition-base);
}

a.contact-value:hover {
  color: var(--color-secondary);
}

/* Contact Form */
.contact-form {
  background-color: rgba(255, 255, 255, 0.05);
  padding: var(--space-lg);
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 16px 0;
  font-family: inherit;
  font-size: 15px;
  color: var(--color-text-light);
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  outline: none;
  transition: var(--transition-base);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-bottom-color: var(--color-secondary);
  box-shadow: 0 2px 0 var(--color-secondary);
}

.form-group select option {
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

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

.contact-form .btn {
  margin-top: var(--space-md);
}

.btn-loading {
  display: none;
}

.btn.loading .btn-text {
  display: none;
}

.btn.loading .btn-loading {
  display: flex;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.form-success {
  display: none;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  padding: var(--space-md);
  background-color: rgba(139, 154, 125, 0.2);
  border-radius: 4px;
  color: var(--color-accent);
}

.form-success.show {
  display: flex;
}

@media (max-width: 968px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

/* ===================================
   Footer
   =================================== */
.footer {
  background-color: var(--color-bg-dark);
  padding: var(--space-xl) 0 var(--space-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  height: 40px;
  width: auto;
  margin-bottom: var(--space-sm);
}

.footer-tagline {
  font-family: var(--font-accent);
  font-size: 16px;
  color: rgba(255, 255, 255, 0.5);
}

.footer h4 {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-bottom: var(--space-md);
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-links a {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition-base);
}

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

.footer-contact p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-xs);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-md);
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-logo {
    margin: 0 auto var(--space-sm);
  }
}

/* ===================================
   Animations & Reveal
   =================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* Staggered reveal for grouped elements */
.services-grid .reveal:nth-child(1) { transition-delay: 0.1s; }
.services-grid .reveal:nth-child(2) { transition-delay: 0.2s; }
.services-grid .reveal:nth-child(3) { transition-delay: 0.3s; }
.services-grid .reveal:nth-child(4) { transition-delay: 0.4s; }
.services-grid .reveal:nth-child(5) { transition-delay: 0.5s; }

.portfolio-grid .reveal:nth-child(1) { transition-delay: 0.1s; }
.portfolio-grid .reveal:nth-child(2) { transition-delay: 0.2s; }
.portfolio-grid .reveal:nth-child(3) { transition-delay: 0.3s; }
.portfolio-grid .reveal:nth-child(4) { transition-delay: 0.4s; }
.portfolio-grid .reveal:nth-child(5) { transition-delay: 0.5s; }
.portfolio-grid .reveal:nth-child(6) { transition-delay: 0.6s; }

.stats-grid .reveal:nth-child(1) { transition-delay: 0.1s; }
.stats-grid .reveal:nth-child(2) { transition-delay: 0.2s; }
.stats-grid .reveal:nth-child(3) { transition-delay: 0.3s; }
.stats-grid .reveal:nth-child(4) { transition-delay: 0.4s; }