/* ============================================
   대우나이 인테리어 - Design System
   Font: Noto Sans KR + Playfair Display
   Theme: Warm luxury, earthy tones
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700&family=Playfair+Display:ital,wght@0,400;0,700;1,400&display=swap');

:root {
  /* Colors - Warm Earthy Palette */
  --c-primary: #8B6F47;
  --c-primary-dark: #6B5535;
  --c-primary-light: #A8956E;
  --c-accent: #C4956A;
  --c-dark: #2C2520;
  --c-text: #3D3530;
  --c-text-light: #7A706A;
  --c-text-muted: #A89E98;
  --c-bg: #FDFBF8;
  --c-bg-warm: #F5F0EA;
  --c-bg-section: #EDE7DF;
  --c-white: #FFFFFF;
  --c-border: #DDD5CC;
  --c-success: #5A8C6F;
  --c-gold: #C9A96E;

  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Noto Sans KR', -apple-system, sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-2xl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --header-height: 80px;

  /* Transitions */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color 0.3s var(--ease); }
ul, ol { list-style: none; }

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

/* ============================================
   Typography
   ============================================ */
.section-label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--c-primary);
  margin-bottom: var(--space-xs);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--c-dark);
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}

.section-desc {
  font-size: 1.05rem;
  color: var(--c-text-light);
  max-width: 560px;
  line-height: 1.8;
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(253, 251, 248, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all 0.4s var(--ease);
  height: var(--header-height);
}

.header.scrolled {
  border-bottom-color: var(--c-border);
  box-shadow: 0 1px 20px rgba(44, 37, 32, 0.06);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--c-dark);
  letter-spacing: -0.5px;
}

.logo span {
  color: var(--c-primary);
}

.nav-links {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--c-text-light);
  position: relative;
  padding: 0.5rem 0;
  transition: color 0.3s var(--ease);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--c-primary);
  transition: width 0.3s var(--ease);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--c-dark);
}

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

.nav-cta {
  background: var(--c-primary) !important;
  color: var(--c-white) !important;
  padding: 0.6rem 1.4rem !important;
  border-radius: 6px;
  font-size: 0.85rem !important;
  font-weight: 500;
  transition: background 0.3s var(--ease), transform 0.2s var(--ease) !important;
}

.nav-cta::after { display: none !important; }

.nav-cta:hover {
  background: var(--c-primary-dark) !important;
  transform: translateY(-1px);
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-dark);
  transition: all 0.3s var(--ease);
}

.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  max-height: 900px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--c-dark);
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s var(--ease);
}

.hero-slide.active { opacity: 1; }

.hero-slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  transition: transform 8s linear;
}

.hero-slide.active .hero-slide-bg {
  transform: scale(1);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(44, 37, 32, 0.75) 0%, rgba(44, 37, 32, 0.3) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  color: var(--c-white);
}

.hero-label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: var(--space-sm);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s var(--ease-out) 0.3s forwards;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: var(--space-sm);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.8s var(--ease-out) 0.5s forwards;
}

.hero-subtitle {
  font-size: 1.1rem;
  font-weight: 300;
  line-height: 1.8;
  color: rgba(255,255,255,0.8);
  max-width: 500px;
  margin-bottom: var(--space-md);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s var(--ease-out) 0.7s forwards;
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s var(--ease-out) 0.9s forwards;
}

.hero-indicators {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 3;
}

.hero-dot {
  width: 32px;
  height: 3px;
  background: rgba(255,255,255,0.35);
  border: none;
  cursor: pointer;
  transition: all 0.4s var(--ease);
  border-radius: 2px;
}

.hero-dot.active {
  background: var(--c-white);
  width: 48px;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.3s var(--ease);
}

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

.btn-primary:hover {
  background: var(--c-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(139, 111, 71, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--c-white);
  border: 1px solid rgba(255,255,255,0.4);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--c-white);
}

.btn-dark {
  background: var(--c-dark);
  color: var(--c-white);
}

.btn-dark:hover {
  background: #1a1512;
  transform: translateY(-2px);
}

/* ============================================
   Services Section
   ============================================ */
.services {
  padding: var(--space-2xl) 0;
  background: var(--c-bg);
}

.services-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.services-header .section-desc {
  margin: 0 auto;
}

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

.service-card {
  position: relative;
  background: var(--c-white);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.4s var(--ease);
  border: 1px solid var(--c-border);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(44, 37, 32, 0.1);
  border-color: transparent;
}

.service-card-img {
  height: 220px;
  overflow: hidden;
}

.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.service-card:hover .service-card-img img {
  transform: scale(1.08);
}

.service-card-body {
  padding: var(--space-md);
}

.service-card-num {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--c-primary);
  letter-spacing: 2px;
  margin-bottom: var(--space-xs);
}

.service-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-dark);
  margin-bottom: 0.5rem;
}

.service-card-desc {
  font-size: 0.92rem;
  color: var(--c-text-light);
  line-height: 1.7;
}

/* ============================================
   Portfolio Section
   ============================================ */
.portfolio {
  padding: var(--space-2xl) 0;
  background: var(--c-bg-warm);
}

.portfolio-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--space-lg);
}

.portfolio-filters {
  display: flex;
  gap: 0.5rem;
}

.filter-btn {
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--c-border);
  border-radius: 100px;
  background: transparent;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--c-text-light);
  cursor: pointer;
  transition: all 0.3s var(--ease);
}

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

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
}

.portfolio-item {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.portfolio-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(44, 37, 32, 0.85) 100%);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-sm);
}

.portfolio-item:hover img { transform: scale(1.08); }
.portfolio-item:hover .portfolio-item-overlay { opacity: 1; }

.portfolio-item-title {
  color: var(--c-white);
  font-size: 1rem;
  font-weight: 500;
}

.portfolio-item-cat {
  color: var(--c-gold);
  font-size: 0.8rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* Portfolio large items */
.portfolio-grid .portfolio-item:nth-child(1) {
  grid-column: span 2;
  grid-row: span 2;
}

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

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

.about-image {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 4/5;
}

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

.about-image-badge {
  position: absolute;
  bottom: var(--space-md);
  right: var(--space-md);
  background: var(--c-primary);
  color: var(--c-white);
  padding: var(--space-sm) var(--space-md);
  border-radius: 8px;
}

.about-image-badge .badge-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
}

.about-image-badge .badge-text {
  font-size: 0.85rem;
  opacity: 0.85;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.stat-item {
  padding: var(--space-sm);
  background: var(--c-bg-warm);
  border-radius: 10px;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--c-primary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--c-text-light);
}

/* ============================================
   Reviews Section
   ============================================ */
.reviews {
  padding: var(--space-2xl) 0;
  background: var(--c-dark);
  color: var(--c-white);
}

.reviews .section-label { color: var(--c-gold); }
.reviews .section-title { color: var(--c-white); }

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

.review-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: var(--space-md);
  transition: all 0.3s var(--ease);
}

.review-card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
}

.review-stars {
  color: var(--c-gold);
  font-size: 0.9rem;
  margin-bottom: var(--space-sm);
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.8);
  margin-bottom: var(--space-sm);
}

.review-author {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

/* ============================================
   Location Section
   ============================================ */
.location {
  padding: var(--space-2xl) 0;
  background: var(--c-bg-warm);
}

.location-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.location-map {
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 4/3;
  border: 1px solid var(--c-border);
}

.location-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.location-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  justify-content: center;
}

.location-info-item {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.location-icon {
  width: 48px;
  height: 48px;
  background: var(--c-primary);
  color: var(--c-white);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.2rem;
}

.location-info-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--c-dark);
  margin-bottom: 0.2rem;
}

.location-info-text {
  font-size: 0.9rem;
  color: var(--c-text-light);
  line-height: 1.6;
}

/* ============================================
   CTA Section
   ============================================ */
.cta {
  padding: var(--space-xl) 0;
  background: var(--c-primary);
  text-align: center;
  color: var(--c-white);
}

.cta-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.cta-desc {
  font-size: 1rem;
  opacity: 0.85;
  margin-bottom: var(--space-md);
}

.cta .btn-dark:hover {
  background: var(--c-white);
  color: var(--c-primary);
}

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

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

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--c-dark);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--c-text);
  background: var(--c-white);
  transition: border-color 0.3s var(--ease);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(139, 111, 71, 0.1);
}

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

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

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--c-dark);
  color: rgba(255,255,255,0.6);
  padding: var(--space-xl) 0 var(--space-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: var(--space-sm);
}

.footer-logo span { color: var(--c-gold); }

.footer-desc {
  font-size: 0.88rem;
  line-height: 1.8;
}

.footer-heading {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: var(--space-sm);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  font-size: 0.88rem;
  transition: color 0.3s var(--ease);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
}

/* ============================================
   Floating CTA (Mobile)
   ============================================ */
.floating-cta {
  position: fixed;
  bottom: var(--space-md);
  right: var(--space-md);
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.float-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-white);
  font-size: 1.3rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  transition: all 0.3s var(--ease);
  border: none;
  cursor: pointer;
}

.float-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(0,0,0,0.2);
}

.float-btn-phone { background: var(--c-primary); }
.float-btn-top { background: var(--c-dark); font-size: 1rem; opacity: 0; pointer-events: none; }
.float-btn-top.visible { opacity: 1; pointer-events: all; }

/* ============================================
   Animations
   ============================================ */
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

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

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

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

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

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

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(3, 1fr); }
  .portfolio-grid .portfolio-item:nth-child(1) { grid-column: span 2; grid-row: span 1; }
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-md); }
}

@media (max-width: 768px) {
  :root { --header-height: 64px; }

  .menu-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--c-bg);
    flex-direction: column;
    padding: var(--space-md);
    gap: 0;
    border-bottom: 1px solid var(--c-border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.4s var(--ease);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-links a {
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--c-border);
    width: 100%;
  }

  .nav-cta {
    text-align: center;
    margin-top: var(--space-xs);
    justify-content: center;
  }

  .hero { min-height: 500px; max-height: 700px; }
  .hero-title { font-size: clamp(2rem, 8vw, 3rem); }

  .services-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: var(--space-md); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid .portfolio-item:nth-child(1) { grid-column: span 1; }
  .portfolio-header { flex-direction: column; gap: var(--space-sm); align-items: flex-start; }
  .reviews-grid { grid-template-columns: 1fr; }
  .location-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--space-xs); text-align: center; }
}

@media (max-width: 480px) {
  .portfolio-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .portfolio-filters { flex-wrap: wrap; }
}