/* ============================================
   JRLKN Holdings - Design & Project Management
   ============================================ */

:root {
  /* Palette: warm charcoal, cream, warm accent */
  --color-bg: #0f0f0e;
  --color-bg-alt: #181816;
  --color-surface: #1e1e1c;
  --color-text: #f5f3ef;
  --color-text-muted: #a39e94;
  --color-accent: #c9a86c;
  --color-accent-light: #e5d4b8;
  --color-border: rgba(201, 168, 108, 0.2);
  
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'Outfit', -apple-system, sans-serif;
  
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

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

a:hover {
  color: var(--color-accent);
}

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

/* ============================================
   Header & Navigation
   ============================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-md) var(--space-lg);
  background: rgba(15, 15, 14, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}

.nav {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
}

.nav-cta {
  padding: var(--space-xs) var(--space-md);
  background: var(--color-accent);
  color: var(--color-bg) !important;
  border-radius: var(--radius-sm);
}

.nav-cta:hover {
  background: var(--color-accent-light);
  color: var(--color-bg) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

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

/* ============================================
   Hero
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  position: relative;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(201, 168, 108, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 168, 108, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-content {
  position: relative;
  max-width: 800px;
}

.hero-tagline {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 400;
  line-height: 1.15;
  margin-bottom: var(--space-lg);
}

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

.hero-desc {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

.hero-scroll {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.5; transform: scaleY(0.8); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-full {
  width: 100%;
}

/* ============================================
   Sections
   ============================================ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-xl);
}

.section-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 400;
  margin-bottom: var(--space-md);
}

.section-desc {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

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

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

.service-card {
  padding: var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.service-card:hover {
  border-color: rgba(201, 168, 108, 0.4);
  transform: translateY(-4px);
}

.service-icon {
  width: 48px;
  height: 48px;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.service-icon svg {
  width: 100%;
  height: 100%;
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
  margin-bottom: var(--space-sm);
}

.service-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* Portfolio */
.portfolio {
  padding: var(--space-2xl) 0;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.portfolio-item {
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.portfolio-item:hover {
  border-color: rgba(201, 168, 108, 0.4);
}

.portfolio-image {
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

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

.portfolio-image .placeholder-text {
  display: none;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
}

.portfolio-image.placeholder {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg-alt) 100%);
  border-bottom: 1px solid var(--color-border);
}

.portfolio-image.placeholder .placeholder-text {
  display: flex;
}

.portfolio-info {
  padding: var(--space-md);
  background: var(--color-bg);
}

.portfolio-info h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  margin-bottom: var(--space-xs);
}

.portfolio-info p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* About */
.about {
  padding: var(--space-2xl) 0;
  background: var(--color-bg-alt);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.about-content .section-label {
  margin-bottom: var(--space-sm);
}

.about-content .section-title {
  text-align: left;
  margin-bottom: var(--space-md);
}

.about-content p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.about-features {
  list-style: none;
}

.about-features li {
  position: relative;
  padding-left: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.about-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

.about-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-image {
  width: 100%;
  max-width: 400px;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

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

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-info .section-title {
  text-align: left;
  margin-bottom: var(--space-md);
}

.contact-info p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

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

.contact-details a {
  font-weight: 500;
}

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

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

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  transition: border-color var(--transition);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--color-text-muted);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

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

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

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

.lightbox-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 44px;
  height: 44px;
  font-size: 2rem;
  line-height: 1;
  color: var(--color-text);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: color var(--transition);
}

.lightbox-close:hover {
  color: var(--color-accent);
}

.lightbox-content {
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

/* Before/After Compare */
.lightbox-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  max-width: 1000px;
  width: 100%;
  background: var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.compare-view {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--color-bg-alt);
}

.compare-view img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.compare-label {
  position: absolute;
  bottom: var(--space-sm);
  left: var(--space-sm);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 4px 8px;
  background: rgba(0,0,0,0.6);
  border-radius: 2px;
}

.compare-label-after {
  background: rgba(201, 168, 108, 0.9);
  color: var(--color-bg);
}

/* Project Page */
.project-page {
  padding: var(--space-2xl) 0;
  min-height: 60vh;
}

.project-back {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  transition: color var(--transition);
}

.project-back:hover {
  color: var(--color-accent);
}

.project-header {
  margin-bottom: var(--space-xl);
}

.project-header .section-label {
  margin-bottom: var(--space-sm);
}

.project-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 400;
  margin-bottom: var(--space-md);
}

.project-desc {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 600px;
}

.project-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  aspect-ratio: 4/3;
}

.gallery-item-featured {
  grid-column: 1 / -1;
  aspect-ratio: 16/9;
}

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

.gallery-item:hover img {
  transform: scale(1.03);
}

.project-details {
  max-width: 700px;
  margin-bottom: var(--space-xl);
}

.project-details h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: var(--space-md);
}

.project-details h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.project-details p,
.project-details li {
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.project-details ul {
  list-style: none;
  padding: 0;
}

.project-details li {
  position: relative;
  padding-left: var(--space-lg);
}

.project-details li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

.project-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.lightbox-caption {
  margin-top: var(--space-md);
  text-align: center;
}

.lightbox-caption h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: var(--space-xs);
}

.lightbox-caption p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Footer */
.footer {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-content .logo {
  display: inline-block;
  margin-bottom: var(--space-sm);
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  .lightbox-compare {
    grid-template-columns: 1fr;
  }
  .project-gallery {
    grid-template-columns: 1fr;
  }
  .gallery-item-featured {
    aspect-ratio: 4/3;
  }
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--color-bg-alt);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-lg);
    padding: var(--space-xl);
    border-left: 1px solid var(--color-border);
    transition: right var(--transition);
  }

  .nav-links.active {
    right: 0;
  }

  .about-grid,
  .contact-wrapper {
    grid-template-columns: 1fr;
  }

  .about-visual {
    order: -1;
  }

  .about-block {
    max-width: 280px;
  }

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

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn {
    width: 100%;
  }

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