/* ===========================================================
   TOKENS — Blue Dragon ITF TaeKwon-Do
   Palette (pulled from the club emblem):
     --indigo:      #1E3A8A  (dragon blue — headers, nav, the "Blue" in Blue Dragon)
     --indigo-dark: #10204D  (deeper blue for gradients/depth)
     --chalk:       #FAF8F2  (emblem white/cream — page background)
     --navy:        #14151A  (emblem black outline — body text)
     --amber:       #C9A227  (gold fist & lettering — accent, live availability)
     --red:         #C41E3A  (flame-red accent from the dragon — used sparingly, day labels)
     --line:        #DAD7CE  (hairline / muted borders)
   Type:
     Display — 'Anton' (bold, condensed, high-impact — a shout rather than a jersey number)
     Body    — 'Inter'
     Data    — 'IBM Plex Mono' (clean numerals for times/counts)
   Signature element:
     The availability count renders as a small "belt stripe" tag —
     dark tag, gold text, thin coloured underline — a nod to belt-rank
     stripes rather than a generic pill/badge.
=========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Anton&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root {
  --indigo: #1E3A8A;
  --indigo-dark: #10204D;
  --chalk: #FAF8F2;
  --navy: #14151A;
  --amber: #C9A227;
  --amber-dark: #A5800E;
  --line: #DAD7CE;
  --white: #FFFFFF;
  --red: #C41E3A;

  --font-display: 'Anton', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-data: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--chalk);
  color: var(--navy);
  font-family: var(--font-body);
  line-height: 1.55;
}

a { color: inherit; }

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

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Focus visibility (accessibility floor) */
a:focus-visible,
button:focus-visible,
select:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
}

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

/* ---------- Nav ---------- */
.site-nav {
  background: var(--indigo);
  color: var(--chalk);
}
.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}
.site-nav .brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 0.5px;
  color: var(--chalk);
  text-decoration: none;
}
.site-nav .brand img {
  height: 44px;
  width: 44px;
  border-radius: 50%;
  background: var(--chalk);
  object-fit: cover;
}
.site-nav .brand span { color: var(--amber); }
.site-nav .nav-links a {
  color: var(--chalk);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  margin-left: 28px;
  letter-spacing: 0.3px;
}
.site-nav .nav-links a:hover { color: var(--amber); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.2px;
  padding: 14px 28px;
  border-radius: 3px;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.12s ease, background 0.12s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--amber);
  color: var(--indigo-dark);
}
.btn-primary:hover { background: var(--amber-dark); }
.btn-outline {
  background: transparent;
  border-color: var(--chalk);
  color: var(--chalk);
}
.btn-outline:hover { background: rgba(247,245,240,0.1); }

/* ---------- Hero ---------- */
.hero {
  background: var(--indigo);
  color: var(--chalk);
  background-image:
    radial-gradient(circle at 85% 20%, rgba(201,162,39,0.18), transparent 45%),
    linear-gradient(180deg, var(--indigo) 0%, var(--indigo-dark) 100%);
  padding: 88px 0 72px;
}
.hero .eyebrow {
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--amber);
  margin: 0 0 14px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 84px);
  line-height: 0.98;
  letter-spacing: 0.5px;
  margin: 0 0 20px;
}
.hero p {
  max-width: 560px;
  font-size: 18px;
  color: #D8E2DA;
  margin: 0 0 34px;
}

/* ---------- Sections ---------- */
.section {
  padding: 64px 0;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 42px);
  letter-spacing: 0.4px;
  margin: 0 0 8px;
  color: var(--indigo-dark);
}
.section-sub {
  color: #4A5D54;
  margin: 0 0 40px;
  max-width: 620px;
}

/* ---------- Class cards (home page) ---------- */
.class-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.class-card {
  display: block;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 24px;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}
.class-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(23,24,28,0.12);
  border-color: var(--indigo);
}
.class-card,
.class-card:visited,
.class-card:hover,
.class-card:active {
  text-decoration: none;
}
.class-card * {
  text-decoration: none;
}
.class-card.static:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--line);
}
.class-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: var(--amber);
}
.class-card .age {
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--indigo-dark);
  margin: 0 0 6px;
}
.class-card .day {
  font-family: var(--font-data);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--red);
  margin: 0 0 12px;
}
.class-card p.desc {
  font-size: 14.5px;
  color: #45564D;
  margin: 0;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy);
  color: #A9B7C4;
  padding: 32px 0;
  font-size: 13.5px;
}
.site-footer a { color: var(--amber); text-decoration: none; }

/* ===========================================================
   BOOKING PAGE
=========================================================== */
.booking-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  margin-bottom: 24px;
}
.booking-toolbar label {
  font-weight: 700;
  font-size: 14px;
  margin-right: 8px;
}
.booking-toolbar select {
  font-family: var(--font-body);
  font-size: 15px;
  padding: 10px 14px;
  border: 2px solid var(--indigo);
  border-radius: 3px;
  background: var(--white);
  color: var(--navy);
}
.status-line {
  font-family: var(--font-data);
  font-size: 12.5px;
  color: #6B7B72;
  margin-left: auto;
}
.status-line.error { color: var(--red); }
.refresh-btn {
  background: none;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  color: var(--navy);
}
.refresh-btn:hover { border-color: var(--indigo); }

/* Weekly calendar grid */
.calendar-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--white);
  margin-bottom: 60px;
}
.calendar {
  display: grid;
  grid-template-columns: 64px repeat(7, minmax(130px, 1fr));
  min-width: 980px;
  position: relative;
}
.cal-header {
  background: var(--indigo);
  color: var(--chalk);
  padding: 12px 8px;
  text-align: center;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.5px;
  position: sticky;
  top: 0;
  z-index: 2;
}
.cal-header.time-col-header { background: var(--indigo-dark); }

.time-col {
  border-right: 1px solid var(--line);
  position: relative;
}
.time-label {
  position: absolute;
  right: 8px;
  transform: translateY(-50%);
  font-family: var(--font-data);
  font-size: 11px;
  color: #8B9A91;
}
.day-col {
  border-right: 1px solid var(--line);
  position: relative;
  background-image: repeating-linear-gradient(
    to bottom,
    var(--line) 0,
    var(--line) 1px,
    transparent 1px,
    transparent 120px
  );
}
.day-col:last-child { border-right: none; }

.class-block {
  position: absolute;
  left: 4px;
  right: 4px;
  overflow: hidden;
  background: #EAF2EC;
  border: 1px solid var(--indigo);
  border-left: 4px solid var(--indigo);
  border-radius: 3px;
  padding: 6px 8px;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}
.class-block:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(16,38,59,0.15);
}
.class-block.full {
  background: #F2E9E4;
  border-color: var(--red);
  border-left-color: var(--red);
  cursor: pointer;
  opacity: 0.85;
}
.class-block.low .cb-avail {
  border-bottom-color: var(--red);
  color: #FFD9CE;
}
.class-block .cb-age {
  font-weight: 700;
  font-size: 13px;
  color: var(--indigo-dark);
  margin-bottom: 2px;
}
.class-block.full .cb-age { color: var(--red); }
.class-block .cb-time {
  font-family: var(--font-data);
  font-size: 11px;
  color: #4A5D54;
  margin-bottom: 4px;
}
/* Signature: belt-stripe style availability tag */
.cb-avail {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 11px;
  font-weight: 600;
  background: var(--navy);
  color: var(--chalk);
  padding: 2px 6px;
  border-radius: 2px;
  border-bottom: 2px solid var(--amber);
}
.class-block.full .cb-avail {
  border-bottom-color: var(--red);
  color: #FFD9CE;
}

.empty-note {
  padding: 40px;
  text-align: center;
  color: #6B7B72;
  font-size: 15px;
}

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(16,38,59,0.55);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 50;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--white);
  border-radius: 6px;
  max-width: 460px;
  width: 100%;
  padding: 32px;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  color: #6B7B72;
  line-height: 1;
}
.modal h3 {
  font-family: var(--font-display);
  font-size: 26px;
  margin: 0 0 4px;
  color: var(--indigo-dark);
}
.modal .modal-sub {
  font-family: var(--font-data);
  font-size: 12.5px;
  color: var(--red);
  margin: 0 0 22px;
}
.modal-notice {
  background: #F2E9E4;
  border: 1px solid var(--red);
  border-left: 4px solid var(--red);
  border-radius: 3px;
  padding: 10px 14px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--indigo-dark);
  margin: -8px 0 20px;
}
.modal-notice strong { color: var(--red); }
.form-row { margin-bottom: 16px; }
.form-row label {
  display: block;
  font-weight: 600;
  font-size: 13.5px;
  margin-bottom: 6px;
}
.form-row input,
.form-row textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 15px;
  padding: 10px 12px;
  border: 2px solid var(--line);
  border-radius: 3px;
  background: var(--chalk);
}
.contact-input-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.contact-input-row > input[type="tel"],
.contact-input-row > input[type="email"] {
  flex: 1;
  min-width: 0;
}
.preferred-contact-label {
  display: inline-flex !important;
  align-items: center;
  gap: 5px;
  flex: 0 0 auto;
  margin: 0 !important;
  white-space: nowrap;
  font-size: 12px !important;
  font-weight: 400 !important;
  cursor: pointer;
}
.preferred-contact-label input[type="checkbox"] {
  width: auto;
  margin: 0;
  accent-color: var(--indigo);
}
.form-row input:focus,
.form-row textarea:focus {
  border-color: var(--indigo);
  outline: none;
}
.form-row textarea { resize: vertical; min-height: 70px; }
.dob-row {
  display: flex;
  gap: 10px;
}

.dob-row input {
  text-align: center;
}

#dobDay,
#dobMonth {
  flex: 0 0 80px;
}

#dobYear {
  flex: 1;
}
.modal .btn { width: 100%; text-align: center; }
.form-msg {
  margin-top: 14px;
  font-size: 13.5px;
  font-weight: 600;
}
.form-msg.success { color: var(--indigo); }
.form-msg.error { color: var(--red); }