/* ==========================================================================
   Vitraz Studio — shared stylesheet
   Palette inspired by stained glass: deep charcoal base, jewel-tone accents.
   ========================================================================== */

:root {
  --color-bg: #15171c;
  --color-bg-alt: #1d2028;
  --color-surface: #23262f;
  --color-border: #343845;
  --color-text: #eceef2;
  --color-text-muted: #a7acb9;

  --color-ruby: #c4344f;
  --color-amber: #e0a338;
  --color-emerald: #2f8f6b;
  --color-sapphire: #3a6fb0;
  --color-violet: #7a52a8;

  --gradient-glass: linear-gradient(135deg, var(--color-ruby) 0%, var(--color-amber) 25%, var(--color-emerald) 50%, var(--color-sapphire) 75%, var(--color-violet) 100%);

  --font-display: "Playfair Display", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --max-width: 1140px;
  --radius: 10px;
  --transition: 0.25s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.4rem); }
h3 { font-size: 1.3rem; }

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-amber);
  margin-bottom: 0.75rem;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

.btn-primary {
  background: var(--gradient-glass);
  color: #0d0e11;
}

.btn-primary:hover {
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-outline:hover {
  border-color: var(--color-amber);
  color: var(--color-amber);
}

/* ---- Header / Nav ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(21, 23, 28, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-brand .swatch {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  background: var(--gradient-glass);
  display: inline-block;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.6rem;
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg-alt);
    flex-direction: column;
    gap: 0;
    border-bottom: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
  }

  .nav-links.open {
    max-height: 400px;
  }

  .nav-links li {
    border-top: 1px solid var(--color-border);
  }

  .nav-links a {
    display: block;
    padding: 1rem 1.5rem;
  }
}

/* ---- Hero ---- */
.hero {
  position: relative;
  padding: 6rem 0 5rem;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-glass);
  opacity: 0.12;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: 720px;
}

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

/* ---- Page header (non-home pages) ---- */
.page-header {
  padding: 4rem 0 2.5rem;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.page-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-glass);
  opacity: 0.08;
  pointer-events: none;
}

.page-header .container { position: relative; }

/* ---- Section ---- */
.section {
  padding: 5rem 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-head {
  max-width: 640px;
  margin: 0 auto 3rem;
  text-align: center;
}

/* ---- Cards / grid ---- */
.grid {
  display: grid;
  gap: 1.75rem;
}

.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

@media (max-width: 900px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: transform var(--transition), border-color var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--color-amber);
}

.card .icon-swatch {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  margin-bottom: 1.25rem;
}

.swatch-ruby { background: var(--color-ruby); }
.swatch-amber { background: var(--color-amber); }
.swatch-emerald { background: var(--color-emerald); }
.swatch-sapphire { background: var(--color-sapphire); }
.swatch-violet { background: var(--color-violet); }

/* ---- Placeholder media (stand-in for real photography) ---- */
.placeholder-media {
  aspect-ratio: 4 / 5;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.85);
  background: var(--gradient-glass);
  background-size: 220% 220%;
  border: 1px solid var(--color-border);
  cursor: pointer;
}

.placeholder-media span {
  background: rgba(13, 14, 17, 0.55);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
}

.placeholder-media.square { aspect-ratio: 1 / 1; }
.placeholder-media.wide { aspect-ratio: 16 / 10; }

/* ---- Gallery ---- */
.gallery-filters {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover {
  border-color: var(--color-amber);
}

.filter-btn.active {
  background: var(--color-amber);
  border-color: var(--color-amber);
  color: #0d0e11;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

@media (max-width: 900px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .gallery-grid { grid-template-columns: 1fr; }
}

.gallery-item {
  display: none;
}

.gallery-item.visible {
  display: block;
}

.gallery-item figcaption {
  margin-top: 0.6rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ---- Lightbox ---- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10, 11, 14, 0.92);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 2rem;
}

.lightbox.open {
  display: flex;
}

.lightbox-content {
  max-width: 600px;
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius);
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
}

/* ---- About / split layout ---- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

@media (max-width: 800px) {
  .split { grid-template-columns: 1fr; }
}

.split-reverse .split-media { order: 2; }

/* ---- Timeline (workshops) ---- */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

@media (max-width: 600px) {
  .timeline-item { grid-template-columns: 1fr; }
}

.timeline-date {
  font-weight: 700;
  color: var(--color-amber);
}

/* ---- Form ---- */
.form {
  display: grid;
  gap: 1.25rem;
  max-width: 560px;
}

.form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--color-text-muted);
}

.form input,
.form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.form input:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--color-amber);
}

.form-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ---- Contact info / socials ---- */
.contact-info {
  display: grid;
  gap: 1rem;
}

.contact-info .item {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-links a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition), color var(--transition);
}

.social-links a:hover {
  border-color: var(--color-amber);
  color: var(--color-amber);
}

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 3rem 0 2rem;
  background: var(--color-bg-alt);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (max-width: 700px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-grid h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.footer-grid ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.footer-grid a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-grid a:hover {
  color: var(--color-text);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}