@import url('./variables.css');

/* ========================================
   RESET & BASE
   ======================================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--color-accent-hover); }

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ========================================
   LAYOUT UTILITIES
   ======================================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container--narrow {
  max-width: var(--max-width-narrow);
}

.section {
  padding: var(--space-4xl) var(--space-xl);
  position: relative;
}

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

.section--contour::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--contour-pattern);
  background-repeat: repeat;
  background-size: 400px 400px;
  pointer-events: none;
  z-index: 0;
}

.section--contour > * {
  position: relative;
  z-index: 1;
}

/* ========================================
   HEADER & NAV
   ======================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(15, 17, 20, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: background var(--transition-base);
}

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

.site-logo {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: 0.5px;
  transition: color var(--transition-fast);
}
.site-logo:hover { color: var(--color-accent); }

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

.nav-links a {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.3px;
  padding: var(--space-xs) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

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

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

/* Burger Menu */
.burger {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  padding: var(--space-xs);
  z-index: 1001;
}

.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-text-primary);
  margin: 5px 0;
  transition: all var(--transition-base);
  border-radius: 2px;
}

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

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  line-height: 1;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-bg-primary);
  border-color: var(--color-accent);
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-bg-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.btn--outline:hover {
  background: var(--color-accent);
  color: var(--color-bg-primary);
  transform: translateY(-2px);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text-primary);
  border-color: var(--color-border);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

/* ========================================
   CARDS
   ======================================== */
.card {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-accent);
}

.card__image {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

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

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

.card__body {
  padding: var(--space-lg);
}

.card__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: var(--space-xs);
}

.card__title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-xs);
  color: var(--color-text-primary);
}

.card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

/* ========================================
   FOOTER
   ======================================== */
.site-footer {
  padding: var(--space-2xl) var(--space-xl);
  background: var(--color-bg-primary);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}
.footer-links a:hover {
  color: var(--color-accent);
}

.site-footer__copy {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ========================================
   HERO (Shared)
   ======================================== */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-4xl) var(--space-xl);
  padding-top: calc(var(--header-height) + var(--space-4xl));
  overflow: hidden;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15,17,20,0.7) 0%, rgba(15,17,20,0.95) 100%);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero__title {
  font-size: var(--text-hero);
  font-weight: 800;
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  font-weight: 400;
  margin-bottom: var(--space-xl);
}

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

/* ========================================
   LIGHTBOX
   ======================================== */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 3000;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(8px);
  padding: var(--space-3xl);
}

.lightbox.active {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.lightbox__close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-xl);
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: var(--text-3xl);
  cursor: pointer;
  transition: color var(--transition-fast);
  line-height: 1;
  z-index: 3001;
}
.lightbox__close:hover {
  color: var(--color-accent);
}

.lightbox__img {
  max-width: 90%;
  max-height: 85vh;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.lightbox__caption {
  margin-top: var(--space-md);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-align: center;
}

/* ========================================
   GALLERY GRID
   ======================================== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

/* ========================================
   SCROLLBAR
   ======================================== */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg-primary);
}
::-webkit-scrollbar-thumb {
  background-color: var(--color-bg-elevated);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background-color: var(--color-accent);
}

/* ========================================
   ACCESSIBILITY
   ======================================== */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeIn 0.6s ease-out forwards;
}

/* ========================================
   RESPONSIVE — MOBILE
   ======================================== */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: rgba(15, 17, 20, 0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: calc(var(--header-height) + var(--space-xl)) var(--space-xl) var(--space-xl);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    border-left: 1px solid var(--color-border);
    gap: 0;
  }

  .nav-links.active {
    transform: translateX(0);
  }

  .nav-links a {
    font-size: var(--text-base);
    padding: var(--space-sm) 0;
    display: block;
    width: 100%;
  }

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

  .burger {
    display: block;
  }

  .hero {
    min-height: 60vh;
    padding: calc(var(--header-height) + var(--space-2xl)) var(--space-md) var(--space-2xl);
  }

  .hero__title {
    font-size: var(--text-4xl);
  }

  .section {
    padding: var(--space-2xl) var(--space-md);
  }

  .container {
    padding: 0 var(--space-md);
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-md);
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: var(--text-3xl);
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }
}