/* =========================================================
   Elena Roth Fotografie — Musterprojekt (PixelSeite)
   Dark, moody editorial theme — Kupfer/Rosé-Gold auf Anthrazit
   ========================================================= */

:root {
  --bg: #16130f;
  --bg-alt: #1d1914;
  --bg-raised: #221d17;
  --line: #3a332a;

  --text: #f3ece1;
  --text-muted: #b8ab99;
  --text-dim: #8a7d6c;

  --copper: #c98a5e;
  --copper-light: #e0a97c;
  --rose: #d9a49a;

  --grad-copper: linear-gradient(135deg, #8a5a3c 0%, #c98a5e 45%, #e6b98a 100%);

  --serif: Georgia, 'Times New Roman', Times, serif;
  --sans: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  --container: 1180px;
  --radius: 2px;
  --transition: 320ms cubic-bezier(.4,0,.2,1);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

ul { list-style: none; margin: 0; padding: 0; }

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.15;
  margin: 0 0 .5em;
  color: var(--text);
}

p { margin: 0 0 1em; color: var(--text-muted); }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--copper);
  color: #16130f;
  padding: .75em 1.25em;
  z-index: 999;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.eyebrow {
  font-family: var(--sans);
  font-size: .78rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--copper-light);
  margin: 0 0 1em;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  padding: .95em 2em;
  font-family: var(--sans);
  font-size: .85rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

.btn-primary {
  background: var(--grad-copper);
  color: #1a140e;
  border-color: transparent;
}
.btn-primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.08);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}
.btn-ghost:hover {
  border-color: var(--copper);
  color: var(--copper-light);
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(22, 19, 15, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 1.1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--serif);
  font-size: 1.05rem;
  letter-spacing: .3em;
  color: var(--text);
}

.main-nav ul {
  display: flex;
  gap: 2.4rem;
}

.main-nav a {
  font-size: .85rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
  position: relative;
  transition: color var(--transition);
}
.main-nav a:hover { color: var(--copper-light); }
.main-nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 1px;
  background: var(--copper);
  transition: width var(--transition);
}
.main-nav a:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: .5rem;
}
.nav-toggle-bar {
  width: 24px;
  height: 1px;
  background: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ---------- Hero ---------- */

.hero {
  max-width: var(--container);
  margin: 0 auto;
  padding: 5.5rem 1.5rem 5rem;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 3rem;
  align-items: center;
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 4rem);
  letter-spacing: .01em;
}

.hero-sub {
  max-width: 34em;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.hero-visual { width: 100%; }

.hero-frame {
  aspect-ratio: 3/4;
  width: 100%;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,.6);
}
.hero-frame img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ---------- Section scaffolding ---------- */

section { padding: 5.5rem 1.5rem; }

.section-head {
  max-width: var(--container);
  margin: 0 auto 2.5rem;
  text-align: center;
}
.section-head h2 { font-size: clamp(1.9rem, 3.5vw, 2.6rem); }
.section-sub { max-width: 42em; margin: 0 auto; }

/* ---------- Gallery ---------- */

.gallery-section { max-width: var(--container); margin: 0 auto; }

.filter-bar {
  display: flex;
  justify-content: center;
  gap: .75rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text-muted);
  padding: .6em 1.4em;
  font-family: var(--sans);
  font-size: .8rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--transition);
}
.filter-btn:hover { color: var(--text); border-color: var(--copper); }
.filter-btn.is-active {
  background: var(--copper);
  border-color: var(--copper);
  color: #1a140e;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.6rem;
}

.gallery-item {
  margin: 0;
  position: relative;
  opacity: 1;
}
.gallery-item.is-hidden { display: none; }

.gallery-item--tall .gallery-visual { aspect-ratio: 3/4.4; }

.gallery-visual {
  aspect-ratio: 4/5;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.gallery-visual img { width: 100%; height: 100%; object-fit: cover; display: block; }

.gallery-item:hover .gallery-visual {
  transform: translateY(-6px);
  box-shadow: 0 24px 40px -18px rgba(0,0,0,.55);
}

figcaption {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: .8rem;
  font-size: .9rem;
}
.gallery-title { color: var(--text); }
.gallery-cat {
  color: var(--text-dim);
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

/* ---------- About ---------- */

.about-section {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 3.5rem;
  align-items: center;
}

.about-frame {
  aspect-ratio: 4/5;
  border-radius: var(--radius);
  box-shadow: 0 30px 60px -24px rgba(0,0,0,.55);
  overflow: hidden;
}
.about-frame img { width: 100%; height: 100%; object-fit: cover; display: block; }

.about-content p { font-size: 1.02rem; max-width: 40em; }

.about-facts {
  display: flex;
  gap: 2.5rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}
.about-facts li {
  font-size: .85rem;
  color: var(--text-dim);
  letter-spacing: .04em;
}
.about-facts span {
  display: block;
  font-family: var(--serif);
  font-size: 1.8rem;
  color: var(--copper-light);
}

/* ---------- Contact ---------- */

.contact-section {
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.contact-inner {
  max-width: var(--container);
  margin: 0 auto;
  text-align: center;
}
.contact-inner .section-sub { margin-bottom: 3rem; }

.contact-grid {
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  gap: 3rem;
  text-align: left;
  max-width: 920px;
  margin: 0 auto;
}

.contact-form {
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
}

.form-row { margin-bottom: 1.3rem; }
.form-row label {
  display: block;
  font-size: .8rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: .5em;
}
.form-row input,
.form-row textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--sans);
  font-size: .95rem;
  padding: .8em .9em;
  resize: vertical;
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--copper);
}

.contact-form .btn { width: 100%; border: none; }

.form-note {
  margin: 1rem 0 0;
  font-size: .88rem;
  color: var(--copper-light);
  min-height: 1.2em;
}

.contact-info { padding-top: .5rem; }
.contact-label {
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 1.6rem 0 .4em;
}
.contact-info p:first-of-type { margin-top: 0; }
.contact-info a:hover { color: var(--copper-light); }

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: .5rem;
}
.social-links a {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-muted);
  transition: all var(--transition);
}
.social-links a:hover {
  color: var(--copper-light);
  border-color: var(--copper);
  transform: translateY(-2px);
}

/* ---------- Footer ---------- */

.site-footer { padding: 2.5rem 1.5rem; }
.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .5rem;
  font-size: .82rem;
  color: var(--text-dim);
}

/* ---------- Scroll reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 3.5rem; }
  .hero-visual { order: -1; max-width: 340px; }
  .about-section { grid-template-columns: 1fr; }
  .about-frame { max-width: 380px; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .main-nav {
    position: fixed;
    inset: 0 0 0 30%;
    top: 64px;
    background: var(--bg-alt);
    border-left: 1px solid var(--line);
    transform: translateX(100%);
    transition: transform var(--transition);
    padding: 2.5rem 1.5rem;
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; gap: 1.6rem; }
  .nav-toggle { display: flex; }
  .gallery-grid { grid-template-columns: 1fr; }
  section { padding: 3.5rem 1.5rem; }
}