/* ============================================
   Sun+BLK CURTAINS — Dark Luxury Design System
   ============================================ */

/* --- CSS Variables --- */
:root {
  --bg-primary: #0D0B09;
  --bg-secondary: #1A1714;
  --bg-elevated: #252220;
  --gold: #C9A870;
  --gold-light: #E8D5A3;
  --text-primary: #F5F0EB;
  --text-muted: #9A9080;
  --border: #3A3530;
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Inter', sans-serif;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--gold-light);
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.125rem; }

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

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--gold);
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  background: var(--gold);
  margin: 1rem auto 0;
}

.section-title-left {
  text-align: left;
}

.section-title-left::after {
  margin: 1rem 0 0;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 5rem 0;
}

/* --- Header / Navbar --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: linear-gradient(180deg, rgba(13, 11, 9, 0.97), rgba(13, 11, 9, 0.92));
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(201, 168, 112, 0.12);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.22);
}

.site-header.scrolled {
  background: rgba(13, 11, 9, 0.96);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.32);
}

.topbar {
  border-bottom: 1px solid rgba(201, 168, 112, 0.08);
  background: linear-gradient(90deg, rgba(201, 168, 112, 0.06), rgba(201, 168, 112, 0.015));
}

.topbar-inner {
  min-height: 34px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.68rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.topbar-inner span {
  color: var(--text-muted);
}

.topbar-inner a {
  color: var(--gold-light);
  font-weight: 600;
}

.navbar {
  position: relative;
  background: transparent;
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  min-height: 82px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex: 0 0 auto;
}

.nav-logo img {
  height: 44px;
  width: auto;
  filter: drop-shadow(0 4px 18px rgba(0, 0, 0, 0.28));
}

.nav-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  list-style: none;
  gap: 0.35rem;
  width: 100%;
}

.nav-item {
  position: relative;
}

.nav-links > li > a,
.nav-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.78rem 0.95rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--text-primary);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1.2;
  transition: var(--transition);
}

.nav-trigger {
  cursor: pointer;
}

.nav-trigger::after {
  content: '▾';
  font-size: 0.7em;
  opacity: 0.7;
  margin-left: 0.4rem;
}

.nav-links > li > a:hover,
.nav-links > li > a.active,
.nav-trigger:hover,
.nav-item.open .nav-trigger,
.nav-item.active .nav-trigger {
  color: var(--gold-light);
  border-color: rgba(201, 168, 112, 0.18);
  background: linear-gradient(135deg, rgba(201, 168, 112, 0.1), rgba(255, 255, 255, 0.02));
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 240px;
  padding: 0.55rem;
  border: 1px solid rgba(201, 168, 112, 0.14);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(28, 24, 21, 0.99), rgba(18, 15, 13, 0.98));
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.36);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: var(--transition);
  z-index: 1001;
}

.nav-dropdown a {
  display: block;
  padding: 0.72rem 0.9rem;
  border-radius: 12px;
  color: var(--text-muted);
  font-size: 0.9rem;
  letter-spacing: 0.01em;
  text-transform: none;
}

.nav-dropdown a:hover,
.nav-dropdown a.active {
  color: var(--gold-light);
  background: rgba(201, 168, 112, 0.1);
}

.nav-item:hover .nav-dropdown,
.nav-item.open .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.82rem 1.2rem;
  border-radius: 999px;
  border: 1px solid rgba(201, 168, 112, 0.35);
  background: linear-gradient(135deg, rgba(201, 168, 112, 0.18), rgba(201, 168, 112, 0.08));
  color: var(--gold-light);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}

.nav-cta:hover {
  color: var(--bg-primary);
  background: var(--gold-light);
  border-color: var(--gold-light);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(201, 168, 112, 0.2);
  border-radius: 999px;
  padding: 0.7rem;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--gold);
  transition: var(--transition);
}

/* --- Page Hero --- */
.page-hero {
  padding: 11rem 0 5rem;
  background: var(--bg-secondary);
  text-align: center;
  position: relative;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center, rgba(201, 168, 112, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  color: var(--gold);
  margin-bottom: 1rem;
}

.page-hero p {
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* --- Home Hero --- */
.home-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  background: var(--bg-primary);
  overflow: hidden;
  padding-top: 110px;
}

.home-hero .hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.home-hero .hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.home-hero .container {
  position: relative;
  z-index: 2;
}

.home-hero .hero-logo {
  max-width: 400px;
  margin: 0 auto 2rem;
}

.home-hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--gold);
  margin-bottom: 1rem;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.home-hero .tagline {
  font-size: clamp(1rem, 2vw, 1.5rem);
  color: var(--text-primary);
  margin-bottom: 2.5rem;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  border: 2px solid var(--gold);
  cursor: pointer;
  transition: var(--transition);
}

.btn-gold {
  background: transparent;
  color: var(--gold);
}

.btn-gold:hover {
  background: var(--gold);
  color: var(--bg-primary);
}

.btn-solid {
  background: var(--gold);
  color: var(--bg-primary);
}

.btn-solid:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
}

/* --- Cards --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 2rem;
  transition: var(--transition);
}

.card:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
}

.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  margin-bottom: 1.5rem;
}

.card h3 {
  color: var(--gold);
  margin-bottom: 0.75rem;
}

.card p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* --- Feature Blocks --- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2.25rem;
  align-items: start;
}

.feature-item {
  text-align: center;
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.5rem;
  color: var(--gold);
}

.feature-item h3 {
  color: var(--gold);
  margin-bottom: 0.75rem;
}

.feature-item p {
  max-width: 320px;
  margin: 0 auto;
}

/* --- Content Sections --- */
.content-section {
  background: var(--bg-secondary);
}

.content-section-alt {
  background: var(--bg-primary);
}

.content-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.content-row > * {
  min-width: 0;
}

.content-row img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border: 1px solid var(--border);
}

.content-text h2 {
  color: var(--gold);
  margin-bottom: 1.5rem;
}

.content-text ul {
  list-style: none;
  padding: 0;
}

.content-text ul li {
  color: var(--text-muted);
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.content-text ul li::before {
  content: '✦';
  position: absolute;
  left: 0;
  color: var(--gold);
}

/* --- Gallery --- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
}

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

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

.gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem;
  background: linear-gradient(transparent, rgba(13, 11, 9, 0.9));
  transform: translateY(100%);
  transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
  transform: translateY(0);
}

.gallery-overlay h4 {
  color: var(--gold);
}

/* --- Testimonials --- */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 2rem;
}

.stars {
  color: var(--gold);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.testimonial-title {
  color: var(--gold);
  font-family: var(--font-body);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.testimonial-author {
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.verified-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.verified-badge .check {
  width: 18px;
  height: 18px;
  background: #4CAF50;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 10px;
}

.testimonial-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.testimonial-text {
  font-size: 0.95rem;
  line-height: 1.6;
}

.recommend {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.recommend .check-circle {
  width: 16px;
  height: 16px;
  border: 2px solid var(--gold);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  color: var(--gold);
}

/* --- Retailers --- */
.retailer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.retailer-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 3rem 2rem;
  text-align: center;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 160px;
}

.retailer-card:hover {
  border-color: var(--gold);
}

.retailer-card img {
  max-height: 60px;
  width: auto;
  max-width: 100%;
  filter: grayscale(100%);
  transition: var(--transition);
}

.retailer-card:hover img {
  filter: grayscale(0%);
}

/* --- Steps / How To --- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.step-item {
  text-align: center;
  position: relative;
}

.step-number {
  width: 48px;
  height: 48px;
  border: 2px solid var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--gold);
  margin: 0 auto 1rem;
}

.step-item h4 {
  color: var(--gold);
  margin-bottom: 0.5rem;
}

.step-item p {
  font-size: 0.9rem;
}

.step-arrow {
  position: absolute;
  top: 20px;
  right: -1rem;
  color: var(--gold);
  font-size: 1.5rem;
  display: none;
}

/* --- Teaser Section (Home) --- */
.teaser-section {
  background: var(--bg-secondary);
}

.teaser-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.teaser-card {
  text-align: center;
  padding: 2rem;
}

.teaser-card h3 {
  color: var(--gold);
  margin-bottom: 1rem;
}

.teaser-card p {
  margin-bottom: 1.5rem;
}

/* --- Footer --- */
.footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
}

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

.footer-brand img {
  height: 36px;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9rem;
  max-width: 300px;
}

.footer-links h4 {
  color: var(--gold);
  margin-bottom: 1rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

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

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --- Scroll Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* --- Responsive --- */
@media (max-width: 1100px) {
  .topbar-inner {
    font-size: 0.64rem;
  }

  .nav-links > li > a,
  .nav-trigger {
    padding: 0.68rem 0.78rem;
    font-size: 0.66rem;
  }

  .nav-cta {
    padding: 0.72rem 0.9rem;
    font-size: 0.68rem;
  }
}

@media (max-width: 900px) {
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .topbar {
    display: none;
  }

  .container {
    padding: 0 1rem;
  }

  .nav-shell {
    min-height: 72px;
  }

  .nav-panel {
    position: fixed;
    top: 72px;
    left: 1rem;
    right: 1rem;
    max-height: calc(100vh - 88px);
    overflow-y: auto;
    background: rgba(26, 23, 20, 0.98);
    border: 1px solid rgba(201, 168, 112, 0.12);
    border-radius: 20px;
    padding: 1rem;
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
    transform: translateY(-140%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.32);
  }

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

  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }

  .nav-item {
    width: 100%;
  }

  .nav-links > li > a,
  .nav-trigger {
    width: 100%;
    justify-content: space-between;
    padding: 0.9rem 1rem;
    line-height: 1.35;
    text-align: left;
    background: rgba(255, 255, 255, 0.03);
  }

  .nav-dropdown {
    position: static;
    min-width: 0;
    margin-top: 0.35rem;
    opacity: 1;
    transform: none;
    pointer-events: auto;
    display: none;
    box-shadow: none;
  }

  .nav-item.open .nav-dropdown {
    display: block;
  }

  .nav-cta {
    width: 100%;
  }

  .hamburger {
    display: flex;
  }

  .page-hero {
    padding: 8.5rem 0 4rem;
  }

  .home-hero {
    min-height: auto;
    padding: 7.5rem 0 4rem;
  }

  .home-hero .hero-logo {
    max-width: 240px;
  }

  .home-hero h1 {
    max-width: 11ch;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.1;
    text-wrap: balance;
  }

  .home-hero .tagline {
    max-width: 18ch;
    font-size: 0.95rem;
    letter-spacing: 1.5px;
    margin-bottom: 2rem;
    margin-left: auto;
    margin-right: auto;
  }

  .fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .content-row {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .content-text h2,
  .section-title,
  .page-hero h1 {
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .content-row img {
    height: 280px;
  }

  .teaser-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .gallery-overlay {
    transform: translateY(0);
    padding: 1rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
    text-align: center;
  }
}

@media (max-width: 640px) {
  .feature-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 480px) {
  section {
    padding: 3rem 0;
  }

  .page-hero {
    padding: 8rem 0 3rem;
  }

  .home-hero .hero-logo {
    max-width: 200px;
  }

  .home-hero h1 {
    font-size: 2.2rem;
  }

  .content-text {
    width: 100%;
    overflow: hidden;
  }

  .content-text h2,
  .section-title,
  .page-hero h1 {
    display: block;
    width: 100%;
    max-width: 100%;
    font-size: 1.55rem;
    line-height: 1.18;
    white-space: normal;
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .content-text h2 {
    max-width: 9ch;
  }

  .content-text p {
    font-size: 0.96rem;
    overflow-wrap: anywhere;
  }

  .home-hero .tagline {
    font-size: 0.88rem;
    letter-spacing: 1px;
    margin-bottom: 1.75rem;
  }

  .nav-links > li > a,
  .nav-trigger,
  .nav-cta {
    font-size: 0.68rem;
    letter-spacing: 0.08em;
  }

  .card,
  .teaser-card,
  .testimonial-card,
  .retailer-card {
    padding: 1.25rem;
  }

  .card-grid,
  .feature-grid,
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
}