/* Xpressions Dance Academy - single first-party stylesheet.
   Refined studio aesthetic: warm cream / deep plum, Fraunces display, Inter body.
   Mobile menu: hamburger in .site-header (z 70), .nav-overlay (z 65),
   .nav-mobile is a sibling of .site-header. Header drops backdrop-filter at <=740px.
*/

:root {
  /* Colors: darker logo-inspired purple by default */
  --bg:        #211024;
  --surface:   #fff7fb;
  --surface-2: #37213f;
  --ink:       #fff7fb;
  --ink-2:     #eedce9;
  --muted:     #cbaac3;
  --line:      rgba(255, 247, 251, 0.18);
  --accent:    #d84db3;
  --accent-ink:#fff;
  --accent-2:  #a21782;
  --menu-bg:   #ffffff;
  --menu-ink:  #1a1014;
  --menu-muted:#6f6070;
  --menu-line: rgba(26, 16, 20, 0.14);
  --danger:    #b8002a;

  /* Type */
  --font-sans:    "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Fraunces", "Playfair Display", Georgia, serif;
  --font-mono:    ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;

  --radius:    14px;
  --radius-sm: 8px;

  --shadow-1: 0 1px 2px rgba(26, 16, 20, 0.06), 0 1px 3px rgba(26, 16, 20, 0.04);
  --shadow-2: 0 8px 24px rgba(26, 16, 20, 0.10);

  --max-w: 1180px;

  --header-h: 76px;
  --header-top-gap: var(--space-3);

  /* z-index scale */
  --z-overlay: 65;
  --z-header:  70;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:        #16081d;
    --surface:   #24102e;
    --surface-2: #321742;
    --ink:       #fff7fb;
    --ink-2:     #ead7e8;
    --muted:     #c59cbd;
    --line:      rgba(255, 247, 251, 0.16);
    --accent:    #f07ed4;
    --accent-ink:#1a1014;
    --accent-2:  #a21782;
    --shadow-1: 0 1px 2px rgba(0,0,0,0.4), 0 1px 3px rgba(0,0,0,0.4);
    --shadow-2: 0 12px 28px rgba(0,0,0,0.5);
  }
}
:root[data-theme="dark"] {
  --bg:        #16081d;
  --surface:   #24102e;
  --surface-2: #321742;
  --ink:       #fff7fb;
  --ink-2:     #ead7e8;
  --muted:     #c59cbd;
  --line:      rgba(255, 247, 251, 0.16);
  --accent:    #f07ed4;
  --accent-ink:#1a1014;
  --accent-2:  #a21782;
}
:root[data-theme="light"] {
  --bg:        #2b1231;
  --surface:   #fff7fb;
  --surface-2: #f2ddea;
  --ink:       #fff7fb;
  --ink-2:     #f0deec;
  --muted:     #d5b8cf;
  --line:      rgba(255, 247, 251, 0.18);
  --accent:    #f0a5dc;
  --accent-ink:#1a1014;
  --accent-2:  #a21782;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { color-scheme: light dark; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background:
    radial-gradient(circle at 12% -10%, rgba(162, 23, 130, 0.34), transparent 34rem),
    radial-gradient(circle at 92% 8%, rgba(0, 80, 153, 0.22), transparent 30rem),
    linear-gradient(180deg, color-mix(in srgb, var(--bg) 92%, #a21782 8%), var(--bg));
  line-height: 1.55;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration-color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--accent); }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.15; letter-spacing: -0.01em; margin: 0 0 var(--space-4); color: var(--ink); }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 600; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 var(--space-4); }
.muted { color: var(--muted); }
.small { font-size: 0.9rem; }
.eyebrow { text-transform: uppercase; font-size: 0.78rem; letter-spacing: 0.16em; color: var(--accent); font-weight: 600; margin: 0 0 var(--space-3); }
.lede { font-size: 1.15rem; color: var(--ink-2); max-width: 60ch; }
.accent { color: var(--accent); font-style: italic; font-family: var(--font-display); }
.link { color: var(--accent); font-weight: 500; }

/* Skip link */
.skip-link {
  position: absolute; left: -1000px; top: 0; padding: var(--space-3) var(--space-4);
  background: var(--ink); color: var(--bg); z-index: 100;
}
.skip-link:focus { left: 0; }

/* Header */
.site-header {
  position: sticky; top: var(--header-top-gap);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-5);
  padding: var(--space-4) var(--space-6);
  height: var(--header-h);
  width: min(calc(100% - (var(--space-6) * 2)), var(--max-w));
  margin: var(--header-top-gap) auto 0;
  background: var(--menu-bg);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border: 1px solid var(--menu-line);
  border-radius: var(--radius);
  z-index: var(--z-header);
}
.site-header[data-elevated="true"] { box-shadow: var(--shadow-1); }
.brand {
  display: inline-flex; align-items: center; gap: var(--space-3);
  font-family: var(--font-display); font-size: 1.15rem; font-weight: 600;
  text-decoration: none; color: var(--menu-ink);
}
.brand-mark { width: 32px; height: 32px; color: var(--accent); flex: 0 0 auto; }
.brand-logo { width: 168px; height: auto; object-fit: contain; flex: 0 0 auto; }
.brand-text { display: inline-flex; flex-direction: column; line-height: 1; }
.brand-x { color: var(--accent); }
.brand-sub { font-family: var(--font-sans); font-weight: 500; font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--menu-muted); margin-top: 2px; }
.theme-toggle {
  margin-left: auto;
  width: 44px;
  height: 44px;
  padding: 0;
}
.theme-toggle svg { width: 20px; height: 20px; }

.nav-desktop ul { list-style: none; display: flex; gap: var(--space-5); margin: 0; padding: 0; }
.nav-desktop a {
  text-decoration: none; color: var(--menu-muted); font-weight: 500; font-size: 0.96rem;
  padding: var(--space-2) var(--space-1);
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}
.nav-desktop a:hover, .nav-desktop a[aria-current="page"] {
  color: var(--menu-ink);
  border-bottom-color: var(--accent);
}

.hamburger {
  display: none;
  border: 1px solid var(--menu-line); background: transparent;
  width: 44px; height: 44px; border-radius: var(--radius-sm);
  cursor: pointer; padding: 10px;
  flex-direction: column; justify-content: space-between;
  align-items: stretch;
}
.hamburger span { display: block; height: 2px; background: var(--menu-ink); border-radius: 2px; transition: transform 0.2s, opacity 0.2s; }
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Mobile nav */
.nav-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.42);
  z-index: var(--z-overlay);
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s ease;
}
.nav-overlay[data-open="true"] { opacity: 1; pointer-events: auto; }

.nav-mobile {
  position: fixed; inset: 0;
  background: var(--menu-bg);
  color: var(--menu-ink);
  z-index: var(--z-overlay);
  padding: calc(var(--header-h) + var(--space-6)) var(--space-6) var(--space-6);
  transform: translateX(100%);
  transition: transform 0.25s ease;
  display: none;
  overflow-y: auto;
}
.nav-mobile[data-open="true"] { transform: translateX(0); }
.nav-mobile ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-4); }
.nav-mobile a { font-family: var(--font-display); font-size: 1.6rem; text-decoration: none; color: var(--menu-ink); }
.nav-mobile a[aria-current="page"] { color: var(--accent); }
.nav-mobile__contact { margin-top: var(--space-7); color: var(--menu-muted); }

/* Main containers */
main { max-width: var(--max-w); margin: 0 auto; padding: var(--space-7) var(--space-6); }
.section { margin: var(--space-8) 0; }
.section--muted { background: var(--surface-2); border-radius: var(--radius); padding: var(--space-7) var(--space-6); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-5); }
.page-head { padding: var(--space-7) 0 var(--space-5); border-bottom: 1px solid var(--line); margin-bottom: var(--space-6); }

/* Hero */
.hero {
  position: relative;
  display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1.25fr); gap: var(--space-7);
  align-items: start; padding: var(--space-8) var(--space-6) var(--space-7);
  margin-top: var(--space-5);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) * 1.35);
  background:
    radial-gradient(circle at 88% 16%, rgba(240, 126, 212, 0.32) 0, transparent 32%),
    radial-gradient(circle at 12% 20%, rgba(251, 182, 17, 0.18) 0, transparent 28%),
    linear-gradient(135deg, rgba(55, 24, 68, 0.96), rgba(22, 8, 29, 0.92));
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.28);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: auto -8% -44% 18%;
  height: 72%;
  background: radial-gradient(ellipse at center, color-mix(in srgb, var(--accent) 22%, transparent), transparent 68%);
  pointer-events: none;
}
.hero__copy,
.hero__visual { position: relative; z-index: 1; align-self: start; }
.hero__copy { padding-top: var(--space-2); }
.hero__title { font-size: clamp(2.6rem, 6vw, 4.4rem); margin-bottom: var(--space-5); }
.hero__lede { font-size: 1.2rem; color: var(--ink-2); max-width: 56ch; }
.hero__cta { display: flex; gap: var(--space-3); margin-top: var(--space-5); flex-wrap: wrap; }
.hero__visual { display: grid; gap: var(--space-5); }
.hero__photo {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  background: #ffffff;
  border-radius: calc(var(--radius) * 1.1);
  border: 12px solid #ffffff;
  box-shadow: 0 22px 48px rgba(26, 16, 20, 0.28);
  transform: rotate(1.5deg);
}
.hero__card {
  background: rgba(255, 255, 255, 0.92);
  color: #1a1014;
  border: 1px solid rgba(255, 255, 255, 0.74);
  border-radius: var(--radius);
  padding: var(--space-5);
  box-shadow: 0 14px 34px rgba(26, 16, 20, 0.14);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.hero__card h2 { font-size: 1rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--accent); }
.hero__card p,
.hero__card .muted,
.hero__card a { color: #3b2639; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px; padding: 0.7rem 1.3rem;
  font: inherit; font-weight: 600;
  cursor: pointer; text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.06s, background-color 0.15s, color 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--accent); color: var(--accent-ink); }
.btn--primary:hover { background: color-mix(in srgb, var(--accent) 85%, var(--ink)); color: var(--accent-ink); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--ink); color: var(--ink); }
.btn--danger { background: transparent; color: var(--danger); border-color: var(--danger); }

/* Cards / grids */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.card {
  background: rgba(255, 247, 251, 0.96); border: 1px solid rgba(255, 247, 251, 0.28); border-radius: var(--radius);
  padding: var(--space-5); box-shadow: var(--shadow-1);
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}
.card h3 { color: #261326; }
.card p { color: #4b3748; }
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); }
.card__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
  background: var(--surface-2);
}

.staff-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-5); }
.staff-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: var(--space-5); }

.amenity-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.amenity { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: var(--space-5); }
.amenity h3 { font-size: 1.05rem; margin-bottom: var(--space-2); }
.amenity p { color: var(--ink-2); margin: 0; }

.program-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.program { background: rgba(255, 247, 251, 0.96); border: 1px solid rgba(255, 247, 251, 0.28); border-radius: var(--radius); padding: var(--space-5); }
.program h3,
.program h2 { color: #261326; }
.program p,
.program .prose { color: #4b3748; }
.program__image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
  background: var(--surface-2);
}
.program header h3 { margin-bottom: var(--space-1); }
.program .prereq { background: var(--surface-2); border-radius: var(--radius-sm); padding: var(--space-2) var(--space-3); font-size: 0.92rem; }
.group-title { border-bottom: 1px solid var(--line); padding-bottom: var(--space-2); margin-bottom: var(--space-5); }

.callout { background: var(--surface-2); border-left: 3px solid var(--accent); border-radius: var(--radius-sm); padding: var(--space-4) var(--space-5); }
.callout h3 { margin-top: 0; }

/* Prose */
.prose { max-width: 70ch; }
.prose p { margin: 0 0 var(--space-4); }
.prose ul { padding-left: 1.2em; }
.prose.small { font-size: 0.95rem; }

/* Section split */
.section--split { display: grid; grid-template-columns: 1fr 1.3fr; gap: var(--space-7); }
.photo-strip { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: var(--space-4); align-items: stretch; }
.photo-strip img {
  width: 100%;
  height: 100%;
  min-height: 260px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
}

/* Forms */
.form { display: flex; flex-direction: column; gap: var(--space-4); max-width: 520px; }
.form label { display: flex; flex-direction: column; gap: var(--space-2); font-size: 0.95rem; color: var(--ink-2); }
.form label.checkbox { flex-direction: row; align-items: center; }
.form input, .form textarea, .form select {
  font: inherit; padding: 0.7rem 0.9rem; border-radius: var(--radius-sm);
  border: 1px solid var(--line); background: var(--surface); color: var(--ink);
}
.form input:focus, .form textarea:focus, .form select:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.form-actions { display: flex; gap: var(--space-3); }

.flash { padding: var(--space-3) var(--space-4); border-radius: var(--radius-sm); margin-bottom: var(--space-5); border: 1px solid var(--line); }
.flash--success { background: color-mix(in srgb, #1a8a4a 15%, var(--surface)); border-color: #1a8a4a; }
.flash--error   { background: color-mix(in srgb, var(--danger) 12%, var(--surface)); border-color: var(--danger); }
.flash--info    { background: var(--surface-2); }

/* Changelog */
.changelog { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--space-6); }
.changelog__entry { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: var(--space-5); }
.changelog__entry header { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-3); flex-wrap: wrap; }
.impact { color: var(--accent); letter-spacing: 0.1em; }

/* Admin */
.is-admin { background: var(--surface-2); }
.admin-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  background: var(--surface); border-bottom: 1px solid var(--line);
}
.admin-header .brand { font-family: var(--font-display); font-size: 1.05rem; }
.admin-nav { display: flex; gap: var(--space-4); align-items: center; }
.admin-nav a { color: var(--ink-2); text-decoration: none; }
.admin-nav a:hover { color: var(--ink); }
.admin-main { max-width: 1100px; margin: 0 auto; padding: var(--space-6) var(--space-5); }
.admin-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: var(--space-6); }
.entry-list { list-style: none; padding: 0; display: flex; flex-direction: column; gap: var(--space-5); }
.entry-list li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: var(--space-4); }
.entry-list header { display: flex; gap: var(--space-3); align-items: center; flex-wrap: wrap; margin-bottom: var(--space-2); }
.tag { background: var(--surface-2); padding: 2px 8px; border-radius: 999px; font-size: 0.78rem; }
.tag--ok { background: color-mix(in srgb, #1a8a4a 25%, var(--surface)); color: #0d5c30; }
.inline-form { display: inline-block; }
.auth-box { max-width: 460px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: var(--space-6); }
.mt-l { margin-top: var(--space-6); }
.link-list { padding-left: 1.1em; color: var(--ink-2); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); margin-top: var(--space-8); padding: var(--space-7) var(--space-6); background: var(--surface); }
.footer-grid { max-width: var(--max-w); margin: 0 auto; display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: var(--space-6); }
.footer-brand { display: flex; align-items: center; gap: var(--space-3); font-family: var(--font-display); font-size: 1.1rem; }
.footer-brand .brand-mark { width: 28px; height: 28px; color: var(--accent); }
.footer-brand .brand-logo { width: 132px; }
.footer-fineprint { max-width: var(--max-w); margin: var(--space-6) auto 0; color: var(--muted); font-size: 0.85rem; }
.site-footer h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.14em; margin-bottom: var(--space-3); }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--space-2); }
.site-footer a { text-decoration: none; color: var(--ink-2); }
.site-footer a:hover { color: var(--accent); }

/* ---------- Breakpoints: 1100/821, 820, 740, 560 ---------- */

@media (max-width: 1100px) {
  main { padding: var(--space-6) var(--space-5); }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .amenity-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; gap: var(--space-5); }
  .section--split { grid-template-columns: 1fr; }
  .admin-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-desktop { display: none; }
  .hamburger { display: inline-flex; }
  .nav-mobile { display: block; }
}

@media (max-width: 740px) {
  /* Header drops backdrop-filter at this breakpoint */
  .site-header {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: var(--menu-bg);
    width: calc(100% - (var(--space-4) * 2));
  }
  .program-list { grid-template-columns: 1fr; }
  .staff-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  main { padding: var(--space-5) var(--space-4); }
  .site-header { padding: var(--space-3) var(--space-4); }
  .card-grid { grid-template-columns: 1fr; }
  .amenity-grid { grid-template-columns: 1fr; }
  .brand-sub { display: none; }
  .hero__title { font-size: 2.2rem; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}