/* Reset & Base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  color: #333;
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

/* Header / Nav */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 30px 40px;
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 100;
}

.site-title {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

nav a {
  margin-left: 24px;
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: opacity 0.2s;
}

nav a:hover {
  opacity: 0.5;
}

nav a.active {
  border-bottom: 1px solid #333;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: #333;
}

/* Hero / Tagline */
.tagline {
  text-align: center;
  padding: 20px 40px 40px;
  font-size: 0.85rem;
  letter-spacing: 2px;
  text-transform: lowercase;
  color: #888;
}

/* Portfolio Grid */
.portfolio {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px 60px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.project {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.project img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.4s ease, filter 0.4s ease;
}

.project:hover img {
  transform: scale(1.03);
  filter: brightness(0.7);
}

.project-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.6));
  color: #fff;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.project:hover .project-overlay {
  opacity: 1;
}

.project-title {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: lowercase;
  margin-bottom: 4px;
}

.project-subtitle {
  font-size: 0.75rem;
  letter-spacing: 0.5px;
  opacity: 0.85;
}

/* Contact Page */
.contact-page {
  max-width: 600px;
  margin: 0 auto;
  padding: 40px 40px 80px;
}

.contact-page h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-page .greeting {
  font-size: 1rem;
  color: #888;
  margin-bottom: 40px;
}

.contact-form label {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 6px;
  color: #555;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 2px;
  font-family: inherit;
  font-size: 0.95rem;
  margin-bottom: 20px;
  transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: #333;
}

.contact-form textarea {
  min-height: 150px;
  resize: vertical;
}

.contact-form button {
  display: inline-block;
  padding: 12px 40px;
  background: #333;
  color: #fff;
  border: none;
  font-family: inherit;
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s;
}

.contact-form button:hover {
  background: #555;
}

.form-success {
  display: none;
  font-size: 1.1rem;
  color: #333;
  margin-top: 20px;
}

/* Gallery Page */
.gallery-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 40px 60px;
}

.gallery-header {
  padding: 20px 0 30px;
}

.gallery-back {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #888;
  margin-bottom: 16px;
  transition: color 0.2s;
}

.gallery-back:hover {
  color: #333;
}

.gallery-header h1 {
  font-size: 1.6rem;
  font-weight: 700;
  text-transform: lowercase;
  margin-bottom: 6px;
}

.gallery-header p {
  font-size: 0.85rem;
  color: #888;
}

.gallery-grid {
  display: grid;
  gap: 16px;
}

.gallery-grid img {
  width: 100%;
  cursor: pointer;
  transition: opacity 0.2s;
}

.gallery-grid img:hover {
  opacity: 0.85;
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.lightbox.active {
  display: flex;
}

.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 30px;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  background: none;
  border: none;
  line-height: 1;
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: #fff;
  font-size: 2.5rem;
  cursor: pointer;
  background: none;
  border: none;
  padding: 20px;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.lightbox-nav:hover {
  opacity: 1;
}

.lightbox-prev {
  left: 10px;
}

.lightbox-next {
  right: 10px;
}

/* Footer */
footer {
  text-align: center;
  padding: 30px 40px;
  font-size: 0.75rem;
  color: #aaa;
  border-top: 1px solid #eee;
}

/* Responsive */
@media (max-width: 768px) {
  header {
    padding: 20px 20px;
  }

  .nav-toggle {
    display: block;
  }

  nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    padding: 20px;
    border-bottom: 1px solid #eee;
    text-align: center;
  }

  nav.open {
    display: block;
  }

  nav a {
    display: block;
    margin: 12px 0;
    margin-left: 0;
  }

  .tagline {
    padding: 10px 20px 30px;
    font-size: 0.75rem;
  }

  .portfolio {
    grid-template-columns: 1fr;
    padding: 0 20px 40px;
    gap: 20px;
  }

  .contact-page {
    padding: 20px 20px 60px;
  }

  .gallery-page {
    padding: 0 20px 40px;
  }

  .lightbox-nav {
    font-size: 1.5rem;
    padding: 10px;
  }
}