/* ===== Ekaterina Tsar — Photography site ===== */

:root {
  --bg: #0e0f12;
  --surface: #15171c;
  --surface-2: #1c1f26;
  --text: #e8e6e1;
  --muted: #9a978f;
  --line: #2a2d35;
  --accent: #c8a35a;
  --serif: "Playfair Display", Georgia, serif;
  --sans: "Inter", -apple-system, "Segoe UI", sans-serif;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: min(1140px, 92%);
  margin-inline: auto;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 100;
  transition: background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  background: rgba(14, 15, 18, .92);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--line);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand-logo {
  height: 36px;
  width: auto;
}
.site-nav { display: flex; gap: 2rem; }
.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: .85rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  transition: color .2s;
}
.site-nav a:hover { color: var(--accent); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--text);
  transition: transform .25s, opacity .25s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}
.hero-slides {
  position: absolute; inset: 0;
  display: flex;
  will-change: transform;
}
.hero-slide {
  position: relative;
  flex: 0 0 100%;
}
.hero-slide img {
  width: 100%; height: 100%;
  object-fit: cover;
}
/* caption chip styled after the original etsareg.photos carousel-caption */
.slide-name {
  position: absolute;
  left: 15%;
  right: 15%;
  bottom: 85px;
  z-index: 2;
  text-align: right;
  color: #fff;
  text-shadow: 0 1px 12px rgba(0, 0, 0, .55);
  transition: opacity .6s ease;
}
.slide-name-label {
  display: block;
  font-family: var(--sans);
  font-size: clamp(1rem, 2.2vw, 1.35rem);
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 1rem;
  color: #fff;
}
.slide-name-teaser {
  display: block;
  font-size: 1rem;
  color: #fff;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(14,15,18,.55) 0%, rgba(14,15,18,.35) 45%, rgba(14,15,18,.85) 100%);
}
.hero-content { position: relative; padding-block: 6rem; }
.hero-kicker {
  color: var(--accent);
  letter-spacing: .35em;
  text-transform: uppercase;
  font-size: .8rem;
  margin-bottom: 1.2rem;
}
.hero-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(3rem, 9vw, 6.5rem);
  line-height: 1.05;
  margin-bottom: 1rem;
}
.hero-subtitle {
  color: var(--muted);
  font-size: clamp(1rem, 2.4vw, 1.3rem);
  font-style: italic;
  font-family: var(--serif);
  margin-bottom: 2.5rem;
}

.scroll-cue {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
}
.scroll-cue span {
  display: block;
  width: 1px; height: 52px;
  background: linear-gradient(var(--accent), transparent);
  animation: cue 2s ease-in-out infinite;
}
@keyframes cue {
  0% { transform: scaleY(0); transform-origin: top; }
  45% { transform: scaleY(1); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: .85rem 2.2rem;
  font-size: .8rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid var(--accent);
  cursor: pointer;
  transition: background .2s, color .2s, transform .2s;
}
.btn-primary { background: var(--accent); color: #14110a; }
.btn-primary:hover { background: transparent; color: var(--accent); }
.btn-ghost { background: transparent; color: var(--accent); }
.btn-ghost:hover { background: var(--accent); color: #14110a; }

/* ---------- Sections ---------- */
section { padding-block: clamp(4.5rem, 10vw, 8rem); }

.section-kicker {
  color: var(--accent);
  letter-spacing: .3em;
  text-transform: uppercase;
  font-size: .75rem;
  margin-bottom: .9rem;
}
.section-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2rem, 4.5vw, 3rem);
  margin-bottom: 1.4rem;
}
.center { text-align: center; }

/* ---------- About ---------- */
.about { background: var(--surface); }
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.about-photo img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center 20%;
}
.about-text p { color: var(--muted); margin-bottom: 1rem; }
.about-services {
  list-style: none;
  margin: 1.6rem 0 2.2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .6rem 1.5rem;
}
.about-services li {
  color: var(--text);
  font-size: .92rem;
  padding-left: 1.1rem;
  position: relative;
}
.about-services li::before {
  content: "—";
  color: var(--accent);
  position: absolute; left: 0;
}

/* ---------- Galleries ---------- */
.filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .4rem 1.6rem;
  margin: 1.8rem 0 3rem;
}
.filter-btn {
  background: none;
  border: 0;
  color: var(--muted);
  font-family: var(--sans);
  font-size: .82rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: .45rem .2rem;
  cursor: pointer;
  border-bottom: 1px solid transparent;
  transition: color .2s, border-color .2s;
}
.filter-btn:hover, .filter-btn.is-active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.gallery-group { margin-top: clamp(3rem, 6vw, 4.5rem); }
.gallery-group.hide { display: none; }
.group-head { margin-bottom: 1.6rem; }
.group-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.5rem, 3vw, 2rem);
  display: inline-block;
}
.group-title::after {
  content: "";
  display: block;
  width: 2.6rem; height: 1px;
  background: var(--accent);
  margin-top: .5rem;
}
.group-sub {
  color: var(--muted);
  font-size: .92rem;
  font-style: italic;
  font-family: var(--serif);
  margin-top: .5rem;
}

.gallery-grid {
  columns: 4;
  column-gap: 1.2rem;
}
.gallery-item {
  position: relative;
  overflow: hidden;
  cursor: zoom-in;
  background: var(--surface-2);
  break-inside: avoid;
  margin-bottom: 1.2rem;
}
.gallery-item.hide { display: none; }
.gallery-item img {
  width: 100%;
  height: auto;
  transition: transform .5s ease;
}
.gallery-item:hover img,
.gallery-item:focus-visible img { transform: scale(1.05); }
.gallery-item figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 2.2rem 1.2rem .9rem;
  font-family: var(--serif);
  font-size: 1.05rem;
  background: linear-gradient(transparent, rgba(10,10,12,.85));
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .3s, transform .3s;
  pointer-events: none;
}
.gallery-item figcaption span {
  display: block;
  font-family: var(--sans);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: .15rem;
}
.gallery-item:hover figcaption,
.gallery-item:focus-visible figcaption { opacity: 1; transform: none; }

/* ---------- Contact ---------- */
.contact { background: var(--surface); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
}
.contact-info > p { color: var(--muted); margin-bottom: 2rem; }
.contact-list { list-style: none; }
.contact-list li {
  display: flex;
  gap: 1.5rem;
  padding: .85rem 0;
  border-bottom: 1px solid var(--line);
  font-size: .95rem;
}
.contact-list li span {
  min-width: 90px;
  color: var(--muted);
  letter-spacing: .12em;
  text-transform: uppercase;
  font-size: .72rem;
  padding-top: .25rem;
}
.contact-list a { color: var(--text); text-decoration: none; }
.contact-list a:hover { color: var(--accent); }
.socials { display: flex; gap: 1.6rem; margin-top: 1.8rem; }
.socials a {
  color: var(--muted);
  text-decoration: none;
  font-size: .8rem;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.socials a:hover { color: var(--accent); }

.contact-form { display: grid; gap: 1.3rem; }
.contact-form label {
  display: grid;
  gap: .45rem;
  font-size: .75rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}
.contact-form input,
.contact-form textarea {
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1rem;
  padding: .8rem 1rem;
  transition: border-color .2s;
  resize: vertical;
}
.contact-form input:focus,
.contact-form textarea:focus { outline: none; border-color: var(--accent); }
.contact-form .btn { justify-self: start; }
.form-note { font-size: .75rem; color: var(--muted); }
.form-note.sent { color: var(--accent); }
.contact-form .btn:disabled { opacity: .5; cursor: wait; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 1.8rem;
  font-size: .8rem;
  color: var(--muted);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.back-top { color: var(--muted); text-decoration: none; }
.back-top:hover { color: var(--accent); }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(8, 8, 10, .94);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 2rem clamp(.5rem, 4vw, 3rem);
}
.lightbox[hidden] { display: none; }
.lb-body { max-width: min(1000px, 100%); }
.lb-body img {
  max-width: 100%;
  max-height: 82vh;
  width: auto;
  height: auto;
  margin-inline: auto;
  object-fit: contain;
}
.lb-caption {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  margin-top: .9rem;
  font-family: var(--serif);
  font-size: 1.05rem;
}
.lb-caption #lbCounter {
  font-family: var(--sans);
  color: var(--muted);
  font-size: .8rem;
  letter-spacing: .15em;
  align-self: center;
}
.lb-btn {
  background: none;
  border: 0;
  color: var(--text);
  font-size: 2.4rem;
  line-height: 1;
  cursor: pointer;
  padding: .5rem .8rem;
  opacity: .7;
  transition: opacity .2s, color .2s;
}
.lb-btn:hover { opacity: 1; color: var(--accent); }
.lb-close { position: absolute; top: 1rem; right: 1.2rem; }

body.no-scroll { overflow: hidden; }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .scroll-cue span { animation: none; }
  .gallery-item img { transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .gallery-grid { columns: 3; }
  .about-grid { grid-template-columns: 1fr; }
  .about-photo { max-width: 420px; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: rgba(14,15,18,.97);
    backdrop-filter: blur(10px);
    flex-direction: column;
    align-items: center;
    gap: 1.4rem;
    padding: 2rem 0 2.4rem;
    border-bottom: 1px solid var(--line);
    transform: translateY(-130%);
    transition: transform .3s ease;
  }
  .site-nav.open { transform: none; }

  .gallery-grid { columns: 2; }
  .about-services { grid-template-columns: 1fr; }
  .slide-name { left: 5%; bottom: 5rem; }
  .slide-name-teaser { font-size: .85rem; }
}