/* =========================================================
   International Stage WOF 2026 — Prague
   ========================================================= */

:root {
  --bg:           #0b0c10;
  --bg-2:         #111319;
  --surface:      #161a22;
  --surface-2:    #1c2230;
  --border:       rgba(212, 168, 75, 0.18);
  --border-soft:  rgba(255, 255, 255, 0.08);
  --text:         #f3efe6;
  --text-dim:     #c8c2b4;
  --muted:        #8a857a;
  --gold:         #d4a84b;
  --gold-bright:  #ebc56a;
  --red:          #c8332e;
  --red-deep:     #8e1f1b;

  --shadow-lg:    0 18px 60px rgba(0, 0, 0, 0.55);
  --shadow-md:    0 8px 30px rgba(0, 0, 0, 0.45);

  --container:    1200px;
  --container-narrow: 760px;

  --font-display: "Cormorant Garamond", "Georgia", "Times New Roman", serif;
  --font-sans:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                  "Helvetica Neue", Arial, sans-serif;

  --ease:         cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* -------- Reset / base -------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--gold-bright); text-decoration: none; }
a:hover { color: var(--gold); text-decoration: underline; text-underline-offset: 3px; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.15;
  margin: 0 0 .6em;
  color: var(--text);
}
h2 { font-size: clamp(1.9rem, 1.2rem + 2vw, 2.8rem); }
h3 { font-size: clamp(1.25rem, 1rem + .8vw, 1.6rem); }

p { margin: 0 0 1em; }
.muted    { color: var(--muted); }
.small    { font-size: .9rem; }
.accent   { color: var(--gold); }
.center   { text-align: center; }

.container {
  width: min(var(--container), 100% - 2.5rem);
  margin-inline: auto;
}
.container.narrow { max-width: var(--container-narrow); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 .9rem;
  padding: 0 0 .35rem;
  border-bottom: 1px solid var(--border);
}

/* -------- Buttons -------- */
.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: .04em;
  padding: .85rem 1.6rem;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: all .25s var(--ease);
  text-transform: uppercase;
}
.btn-primary {
  background: var(--gold);
  color: #1a140a;
  border-color: var(--gold);
}
.btn-primary:hover {
  background: var(--gold-bright);
  border-color: var(--gold-bright);
  text-decoration: none;
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover {
  background: rgba(212,168,75,0.08);
  border-color: var(--gold);
  color: var(--gold-bright);
  text-decoration: none;
}
.btn-lg { padding: 1.1rem 2.4rem; font-size: 1.05rem; }
.btn.is-disabled {
  opacity: .55;
  cursor: not-allowed;
  pointer-events: none;
}

/* -------- Header / Nav -------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 12, 16, 0.78);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border-soft);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 68px;
  padding-block: .55rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: .75rem;
  color: var(--text);
  text-decoration: none;
}
.brand:hover { text-decoration: none; }
.brand-logo {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  background: #fff;
  box-shadow: 0 0 0 1px var(--border);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: .04em;
}
.brand-sub {
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
}

.primary-nav ul {
  list-style: none;
  display: flex;
  gap: 1.6rem;
  margin: 0;
  padding: 0;
}
.primary-nav a {
  font-size: .92rem;
  color: var(--text-dim);
  text-decoration: none;
  letter-spacing: .03em;
  padding: .35rem 0;
  border-bottom: 1px solid transparent;
  transition: color .2s, border-color .2s;
}
.primary-nav a:hover { color: var(--gold-bright); border-color: var(--gold); }
.primary-nav a.nav-cta {
  color: var(--gold);
  border: 1px solid var(--gold);
  padding: .45rem 1rem;
  border-radius: 2px;
}
.primary-nav a.nav-cta:hover {
  background: var(--gold);
  color: #1a140a;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  padding: .55rem .6rem;
  cursor: pointer;
  border-radius: 2px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  margin: 4px 0;
  transition: transform .25s, opacity .25s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* -------- Hero -------- */
.hero {
  position: relative;
  min-height: min(900px, 100vh);
  padding: 6rem 0 4rem;
  display: flex;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
}
.hero-bg {
  position: absolute; inset: 0;
  z-index: -2;
  background: url("../img/hero-prague-night.jpg") center 35% / cover no-repeat #000;
  transform: scale(1.05);
  filter: saturate(110%) contrast(108%);
}
.hero-overlay {
  position: absolute; inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse at 50% 100%, rgba(200,51,46,0.18), transparent 60%),
    linear-gradient(180deg,
      rgba(11,12,16,0.55) 0%,
      rgba(11,12,16,0.45) 40%,
      rgba(11,12,16,0.85) 80%,
      rgba(11,12,16,0.98) 100%);
}
.hero-content { max-width: 820px; }
.hero-title {
  font-size: clamp(2.4rem, 1.4rem + 4vw, 4.6rem);
  line-height: 1.05;
  margin: .2rem 0 1rem;
  text-shadow: 0 4px 30px rgba(0,0,0,.65);
}
.hero-title-sub {
  display: inline-block;
  margin-top: .15em;
  font-size: .55em;
  font-weight: 500;
  letter-spacing: .35em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.hero-dates {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, .9rem + 1vw, 1.7rem);
  margin: 0 0 1.4rem;
  letter-spacing: .03em;
  display: inline-flex;
  flex-wrap: wrap;
  gap: .9rem;
  padding: .65rem 1.2rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  color: var(--gold-bright);
}
.hero-dates .sep { color: var(--gold); opacity: .7; }
.hero-lede {
  font-size: 1.1rem;
  color: var(--text-dim);
  max-width: 620px;
  margin-bottom: 2rem;
}
.hero-lede strong { color: var(--text); font-weight: 600; }

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 3rem;
}
.hero-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-soft);
  max-width: 720px;
}
.hero-meta > div { display: flex; flex-direction: column; gap: .15rem; }
.meta-label {
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 1.2rem;
  transform: translateX(-50%);
  width: 28px; height: 44px;
  border: 1px solid var(--border);
  border-radius: 16px;
  display: grid;
  place-items: start center;
}
.scroll-cue span {
  display: block;
  margin-top: 8px;
  width: 3px; height: 8px;
  background: var(--gold);
  border-radius: 2px;
  animation: cue 1.8s ease-in-out infinite;
}
@keyframes cue {
  0%   { transform: translateY(0);   opacity: 0; }
  40%  { transform: translateY(6px); opacity: 1; }
  100% { transform: translateY(16px); opacity: 0; }
}

/* -------- Sections (generic) -------- */
.section {
  padding: clamp(4rem, 5vw + 2rem, 7rem) 0;
  position: relative;
}
.section-alt {
  background:
    linear-gradient(180deg, rgba(212,168,75,0.025), transparent 40%),
    var(--bg-2);
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}
.section-head {
  margin-bottom: 2.5rem;
  max-width: 760px;
}
.section-head.center { margin-inline: auto; text-align: center; }
.section-lede {
  font-size: 1.08rem;
  color: var(--text-dim);
}

/* Decorative rule under h2 */
.section-head h2 {
  position: relative;
  padding-bottom: .55rem;
}
.section-head h2::after {
  content: "";
  display: block;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
  margin-top: .8rem;
}
.section-head.center h2::after { margin-inline: auto; }

/* -------- Grid helpers -------- */
.grid { display: grid; gap: 2rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

/* -------- About cards -------- */
.org-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: 4px;
  padding: 2rem 2rem 1.6rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
}
.org-logo {
  width: 96px; height: 96px;
  border-radius: 50%;
  background: #fff;
  padding: 8px;
  margin-bottom: 1.2rem;
  box-shadow: 0 0 0 1px var(--border);
  overflow: hidden;
}
.org-logo img { width: 100%; height: 100%; object-fit: contain; border-radius: 50%; }
.org-card h3 { color: var(--gold-bright); }

/* -------- Instructors -------- */
.instructors { gap: 2.5rem; }
.instructor-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
}
.instructor-photo {
  margin: 0;
  background: #1a5a72;
  aspect-ratio: 4 / 5;
  overflow: hidden;
}
.instructor-photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center top;
}
.instructor-body { padding: 1.6rem 1.8rem 1.8rem; }
.instructor-body h3 {
  color: var(--gold-bright);
  margin-bottom: .25rem;
}
.instructor-rank {
  color: var(--gold);
  font-size: .92rem;
  letter-spacing: .04em;
  margin-bottom: 1.2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

/* -------- Schedule -------- */
.schedule {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.day-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-top: 3px solid var(--gold);
  border-radius: 4px;
  padding: 1.6rem 1.6rem 1.4rem;
  box-shadow: var(--shadow-md);
}
.day-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 1.2rem;
  padding-bottom: .9rem;
  border-bottom: 1px solid var(--border-soft);
}
.day-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
}
.day-date {
  font-size: .85rem;
  color: var(--gold);
  letter-spacing: .12em;
  text-transform: uppercase;
}
.day-sessions { display: flex; flex-direction: column; gap: 1rem; }
.session {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "label time"
    "detail detail";
  gap: .15rem .8rem;
  padding: .85rem 1rem;
  background: var(--surface-2);
  border-left: 3px solid var(--red);
  border-radius: 2px;
}
.session-label {
  grid-area: label;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-size: .82rem;
  color: var(--gold-bright);
}
.session-time {
  grid-area: time;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.session-detail {
  grid-area: detail;
  font-size: .88rem;
  color: var(--text-dim);
}

/* -------- Venue -------- */
.venue-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(280px, 1fr) minmax(320px, 1.4fr);
}
@media (max-width: 760px) {
  .venue-grid { grid-template-columns: 1fr; }
}
.venue-info h3 { color: var(--gold-bright); }
.venue-info address {
  font-style: normal;
  font-size: 1.1rem;
  color: var(--text);
  margin: 0 0 1rem;
}
.venue-map {
  position: relative;
  min-height: 360px;
  border: 1px solid var(--border-soft);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.venue-map iframe {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  border: 0;
  filter: grayscale(40%) contrast(95%) brightness(95%);
}

/* -------- Fees -------- */
.fees { gap: 1.5rem; }
.fee-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: 4px;
  padding: 1.8rem 1.6rem;
  text-align: center;
  display: flex;
  flex-direction: column;
}
.fee-card.featured {
  border-color: var(--gold);
  background:
    linear-gradient(180deg, rgba(212,168,75,0.08), transparent 60%),
    var(--surface);
  box-shadow: 0 0 0 1px var(--gold), var(--shadow-md);
  transform: translateY(-4px);
}
.fee-card h3 { color: var(--gold-bright); margin-bottom: .8rem; }
.fee-card .badge {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  color: #1a140a;
  font-size: .68rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  font-weight: 700;
  padding: .35rem .8rem;
  border-radius: 2px;
}
.fee-amount {
  font-family: var(--font-display);
  font-size: 2.4rem;
  margin: .4rem 0 1.2rem;
  color: var(--text);
}
.fee-amount .tbd {
  font-size: 1.1rem;
  letter-spacing: .15em;
  color: var(--muted);
  font-family: var(--font-sans);
  padding: .3rem .9rem;
  border: 1px dashed var(--border);
  border-radius: 2px;
}
.fee-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 0;
  color: var(--text-dim);
  font-size: .95rem;
  text-align: center;
}
.fee-card li {
  padding: .45rem 0;
  border-top: 1px solid var(--border-soft);
}
.fee-card li:first-child { border-top: 0; }
.fine-print {
  margin-top: 1.5rem;
  font-size: .9rem;
  color: var(--muted);
  text-align: center;
}

/* -------- Registration CTA -------- */
.section-cta { text-align: center; }
.cta-box {
  margin-top: 1rem;
  padding: 2.2rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--gold);
  border-radius: 4px;
  box-shadow: var(--shadow-md);
}
.cta-box .small { margin-top: 1rem; }

/* -------- Contact -------- */
.contact-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.contact-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: 4px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .25rem;
  color: var(--text);
  text-decoration: none;
  transition: border-color .2s, transform .2s;
}
.contact-card:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
  text-decoration: none;
  color: var(--text);
}
.contact-icon {
  font-size: 1.4rem;
  color: var(--gold);
  margin-bottom: .35rem;
}
.contact-label {
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
}
.contact-value { font-size: 1.05rem; color: var(--gold-bright); }

/* -------- Footer -------- */
.site-footer {
  background: #07080b;
  border-top: 1px solid var(--border-soft);
  padding: 2.5rem 0 2rem;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  align-items: flex-start;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: .9rem;
}
.footer-brand img {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: #fff;
}
.footer-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: .04em;
}
.credits { max-width: 720px; }

/* -------- Reveal-on-scroll -------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* -------- Responsive: nav -------- */
@media (max-width: 920px) {
  .nav-toggle { display: block; }
  .primary-nav {
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(11, 12, 16, 0.97);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-soft);
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s var(--ease);
  }
  .primary-nav.is-open { max-height: 80vh; }
  .primary-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 1rem 1.5rem 1.5rem;
  }
  .primary-nav li { border-bottom: 1px solid var(--border-soft); }
  .primary-nav li:last-child { border-bottom: 0; }
  .primary-nav a {
    display: block;
    padding: .9rem 0;
    font-size: 1rem;
  }
  .primary-nav a.nav-cta {
    margin: .8rem 0;
    text-align: center;
  }
}

@media (max-width: 600px) {
  .hero { padding: 4rem 0 3rem; min-height: 88vh; }
  .hero-dates { font-size: 1.05rem; padding: .55rem .9rem; }
  .hero-cta .btn { width: 100%; text-align: center; }
  .section-head { margin-bottom: 1.8rem; }
  .day-head { flex-direction: column; align-items: flex-start; gap: .2rem; }
  .session { grid-template-columns: 1fr; grid-template-areas: "label" "time" "detail"; }
  .fee-card.featured { transform: none; }
}

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

/* -------- Print (single page) -------- */
@media print {
  .site-header, .nav-toggle, .scroll-cue, .hero-cta, .venue-map { display: none !important; }
  body { background: #fff; color: #111; }
  .hero { min-height: auto; padding: 1rem 0; }
  .hero-bg, .hero-overlay { display: none; }
  .hero-title, .section-head h2 { color: #111; }
  a { color: inherit; text-decoration: none; }
}