/* ============================================
   ONITSO Photography Portfolio
   Pantone 280 CVC: #002868
   ============================================ */

:root {
  --bg-primary: #002868;
  --bg-secondary: #001a4a;
  --bg-card: rgba(255, 255, 255, 0.05);
  --bg-card-hover: rgba(255, 255, 255, 0.10);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.45);
  --accent: #c9a84c;
  --accent-hover: #dbbf6a;
  --border: rgba(255, 255, 255, 0.1);
  --border-hover: rgba(255, 255, 255, 0.25);
  --transition: 0.3s ease;
  --transition-slow: 0.5s ease;
  --max-width: 1400px;
  --header-height: 80px;
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

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

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(0, 40, 104, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  height: var(--header-height);
  transition: background var(--transition);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

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

.logo-text {
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

/* Main Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.main-nav a {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
  white-space: nowrap;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text-primary);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 60%;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: 1.5rem;
  padding-left: 1.5rem;
  border-left: 1px solid var(--border);
}

.lang-switcher button {
  background: none;
  border: 1px solid transparent;
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3rem 0.5rem;
  cursor: pointer;
  transition: all var(--transition);
  border-radius: 2px;
}

.lang-switcher button:hover {
  color: var(--text-secondary);
}

.lang-switcher button.active {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--text-primary);
  transition: all var(--transition);
}

.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 {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--bg-primary) 0%,
    var(--bg-secondary) 50%,
    #001030 100%
  );
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at center,
    rgba(255, 255, 255, 0.02) 0%,
    transparent 70%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 2rem;
}

.hero-logo {
  width: 120px;
  height: auto;
  margin: 0 auto 2rem;
  opacity: 0.9;
}

.hero h1 {
  font-size: 4rem;
  font-weight: 200;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.hero-image {
  width: 70vw;
  max-width: 1000px;
  margin: 0 auto 2.5rem;
  overflow: hidden;
  border: 1px solid var(--border);
}

.hero-image img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  display: block;
  opacity: 0.85;
  transition: opacity var(--transition-slow);
}

.hero-image:hover img {
  opacity: 1;
}

.hero-line {
  width: 60px;
  height: 1px;
  background: var(--accent);
  margin: 0 auto 2rem;
}

.hero-cta {
  display: inline-block;
  padding: 0.8rem 2.5rem;
  border: 1px solid var(--border-hover);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-primary);
  transition: all var(--transition);
}

.hero-cta:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent);
  color: var(--accent);
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  animation: fadeInUp 1.5s ease forwards;
  animation-delay: 1.5s;
  opacity: 0;
}

.scroll-indicator::after {
  content: '';
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
  animation: scrollLine 2s ease infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  50.1% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

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

/* ============================================
   PAGE HEADER (for sub-pages)
   ============================================ */

.page-header {
  padding: calc(var(--header-height) + 4rem) 2rem 3rem;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.page-header h1 {
  font-size: 2.5rem;
  font-weight: 200;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.page-header p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 300;
  letter-spacing: 0.1em;
  max-width: 600px;
  margin: 0 auto;
}

.page-header .hero-line {
  margin: 1.5rem auto;
}

/* ============================================
   SECTION LAYOUT
   ============================================ */

.section {
  padding: 5rem 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-title {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-title h2 {
  font-size: 1.8rem;
  font-weight: 200;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.section-title p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 300;
  letter-spacing: 0.08em;
}

.section-title .hero-line {
  margin: 1rem auto;
}

/* ============================================
   CATEGORY GRID (Home page)
   ============================================ */

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

.category-card {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  cursor: pointer;
}

.category-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.category-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 20, 60, 0.85) 0%,
    rgba(0, 20, 60, 0.2) 50%,
    transparent 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  transition: background var(--transition);
}

.category-card:hover .category-overlay {
  background: linear-gradient(
    to top,
    rgba(0, 20, 60, 0.9) 0%,
    rgba(0, 20, 60, 0.35) 60%,
    rgba(0, 20, 60, 0.1) 100%
  );
}

.category-overlay h3 {
  font-size: 1.1rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.3rem;
  transform: translateY(10px);
  transition: transform var(--transition);
}

.category-card:hover .category-overlay h3 {
  transform: translateY(0);
}

.category-overlay span {
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--transition);
}

.category-card:hover .category-overlay span {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   PHOTO GALLERY (Category pages)
   ============================================ */

.gallery {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 2rem 5rem;
  columns: 3;
  column-gap: 1rem;
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 1rem;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  display: block;
  transition: transform var(--transition-slow), filter var(--transition);
}

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

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 20, 60, 0);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.gallery-item:hover .gallery-item-overlay {
  background: rgba(0, 20, 60, 0.3);
}

.gallery-item-overlay svg {
  width: 36px;
  height: 36px;
  opacity: 0;
  transform: scale(0.8);
  transition: all var(--transition);
  color: white;
}

.gallery-item:hover .gallery-item-overlay svg {
  opacity: 1;
  transform: scale(1);
}

/* ============================================
   LIGHTBOX
   ============================================ */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 10, 30, 0.95);
  backdrop-filter: blur(10px);
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.lightbox.active {
  display: flex;
  opacity: 1;
}

.lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border: 1px solid var(--border);
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  transition: color var(--transition);
  line-height: 1;
}

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

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
}

.lightbox-nav:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: rgba(255, 255, 255, 0.05);
}

.lightbox-prev {
  left: 1.5rem;
}

.lightbox-next {
  right: 1.5rem;
}

.lightbox-counter {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
}

/* ============================================
   ABOUT SECTION
   ============================================ */

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

.about-text h3 {
  font-size: 1.3rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
}

.about-text p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.equipment-list {
  list-style: none;
  margin-top: 1.5rem;
}

.equipment-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

.equipment-list li:last-child {
  border-bottom: none;
}

.equipment-list li strong {
  color: var(--text-primary);
  font-weight: 400;
}

/* ============================================
   CONTACT PAGE
   ============================================ */

.contact-section {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 2rem 5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info h3 {
  font-size: 1.1rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.contact-details {
  list-style: none;
}

.contact-details li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.contact-details li:last-child {
  border-bottom: none;
}

.contact-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.contact-value {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

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

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

/* Contact Form */
.contact-form h3 {
  font-size: 1.1rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.85rem;
  transition: border-color var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
}

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

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

.btn-submit {
  display: inline-block;
  padding: 0.8rem 2.5rem;
  border: 1px solid var(--border-hover);
  background: transparent;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}

.btn-submit:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent);
  color: var(--accent);
}

.form-success {
  display: none;
  padding: 1rem;
  border: 1px solid rgba(201, 168, 76, 0.3);
  background: rgba(201, 168, 76, 0.08);
  color: var(--accent);
  font-size: 0.85rem;
  text-align: center;
  margin-top: 1rem;
}

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

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
  background: var(--bg-secondary);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.footer-left img {
  height: 28px;
  opacity: 0.6;
}

.footer-left span {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

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

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

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

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

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

  .gallery {
    columns: 2;
  }

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

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

  .menu-toggle {
    display: flex;
  }

  .nav-container {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    height: calc(100vh - var(--header-height));
    height: calc(100dvh - var(--header-height));
    background: rgba(0, 26, 74, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 2rem;
    overflow-y: auto;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 999;
  }

  .nav-container.open {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav {
    flex-direction: column;
    gap: 0;
    align-items: stretch;
  }

  .main-nav a {
    padding: 1.15rem 0.5rem;
    font-size: 1.1rem;
    letter-spacing: 0.18em;
    border-bottom: 1px solid var(--border);
    display: block;
    text-align: center;
  }

  .main-nav a::after {
    display: none;
  }

  .lang-switcher {
    margin-left: 0;
    padding-left: 0;
    border-left: none;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    justify-content: center;
    gap: 0.75rem;
  }

  .lang-switcher button {
    font-size: 0.9rem;
    padding: 0.5rem 0.9rem;
  }

  .hero h1 {
    font-size: 2.2rem;
    letter-spacing: 0.25em;
  }

  .hero-subtitle {
    font-size: 0.8rem;
  }

  .category-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .category-card {
    aspect-ratio: 16 / 9;
    min-height: 200px;
  }

  .category-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  /* Force visibility on mobile if IntersectionObserver fails */
  .fade-in {
    opacity: 1;
    transform: none;
  }

  .gallery {
    columns: 1;
    padding: 1rem 1rem 3rem;
  }

  .contact-section {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 1rem 1rem 3rem;
  }

  .page-header h1 {
    font-size: 1.8rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.6rem;
  }

  .section {
    padding: 3rem 1rem;
  }

  .logo-text {
    font-size: 1.2rem;
  }
}