/* ============================================================
   Photographer Portfolio – Shared Stylesheet
   ============================================================ */

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

:root {
  --accent:    #111111;
  --muted:     #888888;
  --light:     #f5f5f5;
  --border:    #e8e8e8;
  --gap:       6px;
  --radius:    0px;
  --nav-h:     64px;
  --max-w:     1400px;
  --font:      -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: #ffffff;
  color: var(--accent);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

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

nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #fff;
  border-bottom: 1px solid var(--border);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  gap: 1rem;
}

.nav-logo {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ============================================================
   HERO (index page)
   ============================================================ */

.hero {
  text-align: center;
  padding: 7rem 2rem 5rem;
}

.hero h1 {
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 300;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero p {
  color: var(--muted);
  font-size: 1rem;
  max-width: 480px;
  margin: 0 auto 3rem;
  line-height: 1.7;
  letter-spacing: 0.02em;
}

/* ============================================================
   GALLERY CARDS (index page)
   ============================================================ */

.gallery-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem 6rem;
}

.gallery-card {
  display: block;
  overflow: hidden;
  border: 1px solid var(--border);
}

.gallery-card-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.5s ease, opacity 0.3s;
}

.gallery-card:hover .gallery-card-img {
  transform: scale(1.04);
  opacity: 0.9;
}

.gallery-card-label {
  padding: 1rem 1.2rem;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.gallery-card-label span {
  color: var(--muted);
  font-size: 1.1rem;
}

/* ============================================================
   PAGE HEADER (gallery & contact pages)
   ============================================================ */

.page-header {
  padding: 4rem 2rem 2rem;
  text-align: center;
}

.page-header h1 {
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  font-weight: 300;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-header p {
  color: var(--muted);
  margin-top: 0.6rem;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}

/* ============================================================
   GALLERY GRID
   ============================================================ */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--gap);
  padding: 2rem 2rem 5rem;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.gallery-thumb {
  display: block;
  overflow: hidden;
  aspect-ratio: 3 / 2;
  background: var(--light);
  cursor: zoom-in;
}

.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease, opacity 0.3s;
}

.gallery-thumb:hover img {
  transform: scale(1.05);
  opacity: 0.88;
}

/* ============================================================
   LIGHTBOX (CSS-only, using :target)
   ============================================================ */

.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.94);
  align-items: center;
  justify-content: center;
}

.lightbox:target {
  display: flex;
}

/* Clickable backdrop to close */
.lb-backdrop {
  position: absolute;
  inset: 0;
}

.lb-body {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  max-width: 95vw;
  max-height: 95vh;
}

.lightbox img {
  max-width: 85vw;
  max-height: 88vh;
  object-fit: contain;
  box-shadow: 0 8px 40px rgba(0,0,0,0.6);
}

/* Close button */
.lb-close {
  position: fixed;
  top: 1rem;
  right: 1.5rem;
  color: #fff;
  font-size: 2rem;
  line-height: 1;
  opacity: 0.65;
  transition: opacity 0.2s;
  z-index: 2;
  padding: 0.25rem 0.5rem;
}

.lb-close:hover { opacity: 1; }

/* Prev / Next arrows */
.lb-prev,
.lb-next {
  color: #fff;
  font-size: 2.8rem;
  line-height: 1;
  opacity: 0.55;
  transition: opacity 0.2s;
  user-select: none;
  flex-shrink: 0;
  padding: 0.5rem;
}

.lb-prev:hover,
.lb-next:hover { opacity: 1; }

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

.contact-wrap {
  max-width: 600px;
  margin: 0 auto;
  padding: 1rem 2rem 6rem;
}

.contact-intro {
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 2.5rem;
  font-size: 0.95rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #555;
}

.form-group input,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--border);
  padding: 0.8rem 1rem;
  font-size: 0.95rem;
  font-family: var(--font);
  outline: none;
  background: #fff;
  transition: border-color 0.2s;
  border-radius: 0;
  -webkit-appearance: none;
}

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

.form-group textarea {
  height: 180px;
  resize: vertical;
}

.btn-submit {
  align-self: flex-start;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 0.85rem 2.8rem;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.2s;
}

.btn-submit:hover {
  background: #333;
}

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

/* Instagram icon in nav */
.nav-instagram {
  display: flex;
  align-items: center;
  color: var(--muted);
  transition: color 0.2s;
  flex-shrink: 0;
}

.nav-instagram:hover {
  color: var(--accent);
}

.nav-instagram svg {
  display: block;
}

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

footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding: 1.2rem 2rem;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  color: #bbb;
}

.footer-social {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-link {
  color: #bbb;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-link:hover {
  color: var(--accent);
}

.footer-ig {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.footer-ig svg {
  flex-shrink: 0;
}

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

@media (max-width: 700px) {
  nav {
    padding: 0 1rem;
    flex-wrap: wrap;
    height: auto;
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 1rem 1.5rem;
    width: 100%;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    padding: 1rem 0.75rem 3rem;
    gap: 4px;
  }

  .gallery-cards {
    grid-template-columns: 1fr;
    padding: 0 1rem 4rem;
  }

  .hero {
    padding: 4rem 1.5rem 3rem;
  }

  .lightbox img {
    max-width: 98vw;
    max-height: 80vh;
  }

  .lb-prev, .lb-next {
    font-size: 2rem;
    padding: 0.25rem;
  }

  .lb-body {
    gap: 0.5rem;
  }

  .contact-wrap {
    padding: 0.5rem 1rem 4rem;
  }
}

@media (max-width: 400px) {
  .gallery-grid {
    grid-template-columns: 1fr;
  }
}