/* ===== Custom Properties ===== */
:root {
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-text-light: #555555;
  --color-border: #e0e0e0;
  --font-heading: Georgia, 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-width: 1400px;
  --header-height: 80px;
  --section-padding: clamp(2.5rem, 6vw, 5rem);
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }

/* ===== Utilities ===== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2rem);
}
.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;
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2rem);
  height: var(--header-height);
}
.header__logo {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  position: relative;
  padding-bottom: 6px;
}
.header__logo::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 110%;
  height: 1px;
  background: var(--color-text);
  transform: rotate(-3deg);
  transform-origin: left center;
}
.header__logo-name {
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-weight: 700;
  letter-spacing: 0.02em;
}
.header__nav {
  display: none;
  gap: 2rem;
}
.nav__link {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s;
}
.nav__link:hover,
.nav__link--active {
  border-bottom-color: var(--color-text);
}
.header__actions {
  display: none;
  align-items: center;
  gap: 1rem;
}
.header__langs {
  display: flex;
  gap: 0.5rem;
}
.lang-btn {
  opacity: 0.5;
  transition: opacity 0.2s;
  padding: 2px;
  border-radius: 2px;
}
.lang-btn:hover,
.lang-btn--active {
  opacity: 1;
}
.header__instagram img {
  opacity: 0.6;
  transition: opacity 0.2s;
}
.header__instagram:hover img {
  opacity: 1;
}

/* Hamburger */
.header__hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 101;
}
.header__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: transform 0.3s, opacity 0.3s;
}
.header__hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.header__hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.header__hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.mobile-menu-open .header__nav {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  padding: 2rem;
  gap: 1.5rem;
  align-items: center;
  justify-content: flex-start;
  padding-top: 3rem;
  z-index: 99;
}
.mobile-menu-open .header__actions {
  display: flex;
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 99;
}

/* ===== Hero ===== */
.section--hero {
  width: 100%;
  overflow: hidden;
}
.hero-carousel {
  position: relative;
  width: 100%;
  aspect-ratio: 2 / 1;
  overflow: hidden;
}
.hero-carousel__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  overflow: hidden;
}
.hero-carousel__slide--active {
  opacity: 1;
}
.hero-carousel__slide picture {
  display: block;
  width: 100%;
  height: 100%;
  animation: heroZoom 8s ease-in-out infinite alternate;
}
.hero__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: heroZoom 8s ease-in-out infinite alternate;
}
@keyframes heroZoom {
  0%   { transform: scale(1); }
  100% { transform: scale(1.05); }
}

/* ===== About ===== */
.section--about {
  padding: var(--section-padding) 0;
}
.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
.about__image img {
  width: 100%;
  margin: 0 auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}
.about__title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  margin-bottom: 1.5rem;
  font-style: italic;
  text-align: center;
}
.about__text p {
  margin-bottom: 1rem;
  font-size: 0.95rem;
  color: var(--color-text-light);
  text-align: justify;
}
.about__text p:last-child { margin-bottom: 0; }

/* ===== Portfolio ===== */
.section--portfolio {
  padding: var(--section-padding) 0;
  min-height: 50vh;
}

.portfolio__title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  margin-bottom: 1.5rem;
  font-style: italic;
  text-align: center;
}

/* Breadcrumb */
.portfolio__breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 2rem;
  min-height: 1.5rem;
}
.portfolio__breadcrumb:empty { margin-bottom: 0; }
.portfolio__breadcrumb a {
  opacity: 0.6;
  transition: opacity 0.2s;
}
.portfolio__breadcrumb a:hover { opacity: 1; }
.portfolio__breadcrumb span.sep { opacity: 0.3; }
.portfolio__breadcrumb span.current { font-weight: 600; }

/* Category cards */
.portfolio__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
.portfolio__card {
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.portfolio__card-img-wrap {
  overflow: hidden;
  background: #f0f0f0;
  border-radius: 2px;
  width: 100%;
  aspect-ratio: 4 / 5;
}
.portfolio__card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.portfolio__card:hover img {
  transform: scale(1.03);
}
.portfolio__card-label {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-align: center;
  color: var(--color-text);
}

/* Series listing */
.portfolio__series-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.portfolio__series-card {
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  transition: border-color 0.2s;
}
.portfolio__series-card:hover {
  border-color: var(--color-text);
}
.portfolio__series-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
}

/* Gallery view */
.portfolio__gallery-header {
  margin-bottom: 2rem;
}
.portfolio__gallery-header h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  margin-bottom: 1rem;
}
.portfolio__gallery-header p {
  font-size: 0.95rem;
  color: var(--color-text-light);
  max-width: 700px;
  text-align: justify;
}
.portfolio__gallery-header .dimensions {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-top: 0.5rem;
  font-style: italic;
}
.portfolio__gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
}
.portfolio__gallery-item {
  cursor: pointer;
  overflow: hidden;
  line-height: 0;
}
.portfolio__gallery-item img {
  width: 100%;
  height: auto;
  transition: transform 0.3s ease;
}
.portfolio__gallery-item:hover img {
  transform: scale(1.02);
}
.portfolio__caption {
  line-height: 1.5;
  padding: 0.6rem 0;
  font-size: 0.8rem;
  color: var(--color-text-light);
}
.portfolio__caption .dimensions {
  font-style: italic;
}

/* Hero-grid layout: tall image left, rows right */
.portfolio__hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.portfolio__hero-grid__left {
  line-height: 0;
}
.portfolio__hero-grid__left img {
  width: 100%;
  height: auto;
}
.portfolio__hero-grid__right {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.portfolio__hero-grid__row {
  display: grid;
  gap: 1rem;
}
.portfolio__hero-grid__row--2 {
  grid-template-columns: 1fr 1fr;
}
.portfolio__hero-grid__row--3 {
  grid-template-columns: 1fr 1fr 1fr;
}

/* Series detail: image + text side-by-side */
.portfolio__detail {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}
.portfolio__detail-images {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}
.portfolio__detail-images.single {
  grid-template-columns: 1fr;
  max-width: 600px;
}

/* ===== Contact ===== */
.section--contact {
  padding: var(--section-padding) 0;
  text-align: center;
  min-height: 40vh;
  display: flex;
  align-items: center;
}
.contact__title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  margin-bottom: 1.5rem;
  font-style: italic;
  text-align: center;
}
.contact__text {
  color: var(--color-text-light);
  margin-bottom: 2rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}
.contact__links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}
.contact__link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 0.9rem;
  transition: border-color 0.2s;
}
.contact__link:hover {
  border-color: var(--color-text);
}

/* ===== Lightbox ===== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.lightbox[hidden] { display: none; }
.lightbox__close {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-size: 2.5rem;
  color: #fff;
  line-height: 1;
  z-index: 201;
}
.lightbox__img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
}

/* ===== Footer ===== */
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-light);
}

/* ===== Sections (continuous scroll) ===== */
.section {
  scroll-margin-top: var(--header-height);
}

/* ===== Responsive: Tablet (768px) ===== */
@media (min-width: 768px) {
  .header__nav {
    display: flex;
  }
  .header__actions {
    display: flex;
  }
  .header__hamburger {
    display: none;
  }

  .about__grid {
    grid-template-columns: 5fr 6fr;
    gap: 4rem;
    align-items: start;
  }

  .portfolio__cards {
    grid-template-columns: repeat(3, 1fr);
  }
  .portfolio__series-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .portfolio__detail {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
  .portfolio__gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
  }
  .portfolio__hero-grid {
    grid-template-columns: 1fr 2fr;
  }
  .portfolio__hero-grid__left img {
    height: 100%;
    object-fit: cover;
  }
}

/* ===== Responsive: Desktop (1200px) ===== */
@media (min-width: 1200px) {
  .about__grid {
    gap: 4rem;
  }
  .about__text p {
    font-size: 1rem;
  }
  .portfolio__gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}