/* ============================================================
   Yakeen Lighting — Commercial V4 (Light Professional)
   Inspired by ERCO, BEGA, Flos Architectural
   ============================================================ */

:root {
  /* Base colors — warm ivory luxury palette (unified with V6) */
  --bg-primary: #FAF7F2;
  --bg-secondary: #F5F0E8;
  --bg-tertiary: #EDE6D9;
  --bg-dark: #2A2520;
  --bg-darker: #1F1B17;

  /* Text colors — warm brown tones */
  --text-primary: #2A2520;
  --text-secondary: #5C5248;
  --text-tertiary: #7A6E60;
  --text-muted: #9A8E80;
  --text-on-dark: #F5F0E8;
  --text-on-dark-secondary: #C8BEB0;

  /* Accent — bronze gold, warm and refined */
  --accent: #B8904A;
  --accent-light: #D4B88A;
  --accent-dark: #9A7638;
  --accent-soft: rgba(184, 144, 74, 0.1);

  /* Borders — warm beige */
  --border: #E8E0D5;
  --border-dark: #D4C8B8;
  --border-on-dark: #3D3730;

  /* Shadows — warm toned */
  --shadow-sm: 0 1px 3px rgba(42, 37, 32, 0.06);
  --shadow-md: 0 4px 16px rgba(42, 37, 32, 0.08);
  --shadow-lg: 0 12px 40px rgba(42, 37, 32, 0.12);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: 100px 0;
}

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

.eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  display: inline-block;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--text-primary);
  line-height: 1.2;
}

h1 { font-size: 56px; line-height: 1.1; }
h2 { font-size: 40px; }
h3 { font-size: 22px; }
h4 { font-size: 16px; font-weight: 600; font-family: var(--font-sans); text-transform: uppercase; letter-spacing: 0.08em; }

p { color: var(--text-secondary); }

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

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

/* ============================================================
   NAVIGATION
   ============================================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: all 0.3s ease;
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--text-primary);
}

.nav-logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  transition: color 0.2s;
  position: relative;
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--text-primary);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: 2px;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
}

.nav-cta:hover {
  background: var(--accent);
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--bg-secondary);
  overflow: hidden;
  padding-top: 72px;
}

.hero-visual {
  position: absolute;
  top: 0;
  right: 0;
  width: 58%;
  height: 100%;
  background-size: cover;
  background-position: center;
}

.hero-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, var(--bg-secondary) 0%, transparent 30%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  padding: 120px 0;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero-tag::before {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--accent);
}

.hero h1 {
  font-size: 60px;
  line-height: 1.05;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.hero h1 em {
  font-style: italic;
  color: var(--accent);
  font-weight: 400;
}

.hero-sub {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  background: var(--text-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: 2px;
  transition: all 0.25s;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--accent);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  background: transparent;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  border: 1px solid var(--border-dark);
  border-radius: 2px;
  transition: all 0.25s;
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--text-primary);
  background: rgba(0,0,0,0.02);
}

.hero-meta {
  display: flex;
  gap: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.hero-meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-meta-value {
  font-family: var(--font-serif);
  font-size: 24px;
  color: var(--text-primary);
}

.hero-meta-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ============================================================
   TRUST BAR — Light version
   ============================================================ */

.trust-bar {
  background: var(--bg-dark);
  padding: 24px 0;
  border-bottom: 1px solid var(--border-on-dark);
}

.trust-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.trust-stat {
  text-align: center;
}

.trust-number {
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--accent-light);
  font-weight: 400;
}

.trust-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #b0ada5;
  margin-top: 4px;
}

/* ============================================================
   SECTION HEADERS
   ============================================================ */

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 56px;
  gap: 40px;
}

.section-header-left {
  max-width: 600px;
}

.section-header h2 {
  margin-bottom: 0;
}

.section-intro {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-tertiary);
  max-width: 420px;
}

.section-link {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: gap 0.2s;
}

.section-link:hover {
  gap: 12px;
  color: var(--accent);
}

/* ============================================================
   PRODUCTS GRID — Light technical style
   ============================================================ */

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  transition: all 0.3s;
}

.product-card:hover {
  border-color: var(--border-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.product-image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--bg-secondary);
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.product-number {
  position: absolute;
  top: 16px;
  left: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: #fff;
  background: rgba(0,0,0,0.6);
  padding: 4px 10px;
  border-radius: 2px;
  letter-spacing: 0.05em;
}

.product-body {
  padding: 24px;
}

.product-category {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.product-body h3 {
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.product-desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}

.product-specs {
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.product-spec-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.product-spec-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.product-spec-list li {
  font-size: 11px;
  font-family: var(--font-mono);
  padding: 4px 10px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border-radius: 2px;
  letter-spacing: 0.02em;
}

.product-link {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.product-link a {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s;
}

.product-link a:hover {
  gap: 10px;
  color: var(--accent);
}

/* ============================================================
   PROJECTS SECTION — Light theme
   ============================================================ */

.projects-showcase {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 24px;
}

.project-card-big {
  grid-row: span 2;
}

.project-card {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  background: var(--bg-secondary);
  aspect-ratio: 16/10;
  cursor: pointer;
}

.project-card-big {
  aspect-ratio: auto;
  min-height: 500px;
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}

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

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 50%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
}

.project-cat {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 8px;
}

.project-title {
  font-family: var(--font-serif);
  font-size: 20px;
  color: #fff;
  margin-bottom: 4px;
  font-weight: 400;
}

.project-card-big .project-title {
  font-size: 28px;
}

.project-loc {
  font-size: 12px;
  color: rgba(255,255,255,0.7);
}

/* ============================================================
   WHY YAKEEN — Light cards
   ============================================================ */

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.why-card {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 32px 28px;
  transition: all 0.3s;
}

.why-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.why-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.why-card h3 {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.why-card p {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-tertiary);
}

/* ============================================================
   PROCESS TIMELINE — Light theme
   ============================================================ */

.process-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
}

.process-step {
  position: relative;
  padding: 0 20px;
  text-align: center;
}

.process-step::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 50%;
  right: -50%;
  height: 1px;
  background: var(--border);
  z-index: 0;
}

.process-step:last-child::before {
  display: none;
}

.step-num {
  position: relative;
  z-index: 1;
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  background: var(--bg-primary);
  border: 1px solid var(--border-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--text-primary);
  transition: all 0.3s;
}

.process-step:hover .step-num {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.step-title {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.step-desc {
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-muted);
}

/* ============================================================
   TESTIMONIALS — Light theme
   ============================================================ */

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testi-card {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 32px;
  transition: all 0.3s;
}

.testi-card:hover {
  border-color: var(--border-dark);
  box-shadow: var(--shadow-sm);
}

.testi-quote {
  font-family: var(--font-serif);
  font-size: 48px;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.4;
}

.testi-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-style: italic;
}

.testi-author {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.testi-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.05em;
}

.testi-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.testi-role {
  font-size: 11px;
  color: var(--text-muted);
}

/* ============================================================
   CTA SECTION — Dark bottom
   ============================================================ */

.cta-section {
  background: var(--bg-dark);
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--accent), transparent);
}

.cta-section .eyebrow {
  color: var(--accent-light);
}

.cta-section h2 {
  font-size: 44px;
  color: #fff;
  max-width: 600px;
  margin: 0 auto 20px;
}

.cta-sub {
  font-size: 16px;
  color: #d4d1cb;
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 32px;
}

.cta-section .btn-primary {
  background: var(--accent);
  color: #2A2520;
  font-weight: 600;
}

.cta-section .btn-primary:hover {
  background: var(--accent-light);
}

.cta-section .btn-secondary {
  color: #fff;
  border-color: rgba(255,255,255,0.2);
}

.cta-section .btn-secondary:hover {
  border-color: rgba(255,255,255,0.5);
  background: rgba(255,255,255,0.05);
}

.cta-direct {
  font-size: 13px;
  color: #b0ada5;
}

.cta-direct a {
  color: var(--accent-light);
  font-weight: 500;
}

.cta-direct a:hover {
  color: #fff;
}

/* ============================================================
   GCC PRESENCE STRIP
   ============================================================ */

.gcc-strip {
  background: var(--bg-secondary);
  padding: 48px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.gcc-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 32px;
}

.gcc-title {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.gcc-countries {
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
}

.gcc-country {
  text-align: center;
}

.gcc-flag {
  font-size: 20px;
  margin-bottom: 6px;
}

.gcc-country-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

/* ============================================================
   CERTIFICATIONS BAR
   ============================================================ */

.certs-bar {
  padding: 60px 0;
  background: var(--bg-primary);
}

.certs-grid {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.cert-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.cert-badge {
  width: 48px;
  height: 48px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.cert-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
}

.cert-desc {
  font-size: 10px;
  color: var(--text-muted);
  text-align: center;
}

/* ============================================================
   FOOTER — Light theme
   ============================================================ */

.footer {
  background: var(--bg-darker);
  padding: 80px 0 32px;
  color: #fff;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  letter-spacing: 0.15em;
  color: #fff;
  margin-bottom: 16px;
  font-weight: 400;
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.7;
  color: #8a8883;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 20px;
}

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

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  font-size: 13px;
  color: #b0ada5;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: #fff;
}

.footer-contact p {
  font-size: 13px;
  color: #b0ada5;
  margin-bottom: 8px;
  line-height: 1.6;
}

.footer-contact a {
  color: var(--accent-light);
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--border-on-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: #6a6863;
}

.footer-social {
  display: flex;
  gap: 20px;
}

.footer-social a {
  color: #8a8883;
  font-size: 12px;
  transition: color 0.2s;
}

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

/* ============================================================
   REVEAL ANIMATIONS
   ============================================================ */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .projects-showcase {
    grid-template-columns: 1fr 1fr;
  }

  .project-card-big {
    grid-column: span 2;
    grid-row: auto;
    min-height: 360px;
  }

  .process-timeline {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px 0;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

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

  .hero h1 { font-size: 44px; }
  h2 { font-size: 32px; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .section { padding: 60px 0; }

  .nav-links { display: none; }

  .hero { padding-top: 60px; }
  .hero-visual {
    width: 100%;
    opacity: 0.15;
  }
  .hero-visual::after { display: none; }
  .hero h1 { font-size: 36px; }
  .hero-content { padding: 80px 0; }

  .products-grid {
    grid-template-columns: 1fr;
  }

  .why-grid {
    grid-template-columns: 1fr;
  }

  .projects-showcase {
    grid-template-columns: 1fr;
  }

  .project-card-big {
    grid-column: auto;
    min-height: 280px;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .process-timeline {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .process-step::before { display: none; }

  .hero-meta {
    flex-direction: column;
    gap: 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  h2 { font-size: 28px; }
  .cta-section h2 { font-size: 30px; }

  .trust-bar-inner {
    justify-content: center;
  }
}