/* ===== S&S Martial Arts — styles.css ===== */

:root,
[data-theme='light'] {
  /* Surfaces — warm cream */
  --color-bg: #f3eee3;
  --color-surface: #faf6ee;
  --color-surface-2: #ffffff;
  --color-surface-offset: #ece5d6;
  --color-divider: #ddd3c0;
  --color-border: #d6cab2;

  /* Text — warm ink */
  --color-text: #1c1814;
  --color-text-muted: #6c6353;
  --color-text-faint: #a99e89;
  --color-text-inverse: #faf6ee;

  /* Primary accent — oxblood crimson */
  --color-primary: #8c1c2b;
  --color-primary-hover: #6e1320;
  --color-primary-active: #521019;
  --color-primary-soft: #f3e0e2;

  /* Accent on dark sections */
  --color-accent-light: #d8737e;

  /* Shadows */
  --shadow-sm: 0 1px 2px oklch(0.2 0.02 60 / 0.07);
  --shadow-md: 0 6px 18px oklch(0.2 0.02 60 / 0.09);
  --shadow-lg: 0 18px 44px oklch(0.2 0.02 60 / 0.14);
}

[data-theme='dark'] {
  --color-bg: #14110e;
  --color-surface: #1d1813;
  --color-surface-2: #241e18;
  --color-surface-offset: #1a1611;
  --color-divider: #2e271f;
  --color-border: #3a3128;

  --color-text: #ece3d4;
  --color-text-muted: #9c9180;
  --color-text-faint: #6a6052;
  --color-text-inverse: #14110e;

  --color-primary: #d8737e;
  --color-primary-hover: #c45966;
  --color-primary-active: #a94150;
  --color-primary-soft: #2c1c1f;

  --color-accent-light: #d8737e;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 6px 18px oklch(0 0 0 / 0.4);
  --shadow-lg: 0 18px 44px oklch(0 0 0 / 0.5);
}

/* Type scale */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.2rem, 1rem + 0.9vw, 1.6rem);
  --text-xl: clamp(1.6rem, 1.2rem + 1.6vw, 2.4rem);
  --text-2xl: clamp(2.2rem, 1.4rem + 3.4vw, 4rem);
  --text-hero: clamp(2.6rem, 1rem + 6vw, 5.5rem);

  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem;
  --space-5: 1.25rem; --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem;
  --space-12: 3rem; --space-16: 4rem; --space-20: 5rem; --space-24: 6rem; --space-32: 8rem;

  --radius-sm: 0.375rem; --radius-md: 0.625rem; --radius-lg: 1rem; --radius-full: 9999px;
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --font-display: 'Archivo', 'Helvetica Neue', sans-serif;
  --font-body: 'Inter', 'Helvetica Neue', sans-serif;

  --content-narrow: 680px; --content-default: 1080px; --content-wide: 1200px;
}

/* ===== Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-text-size-adjust: none; text-size-adjust: none;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility; scroll-behavior: smooth; scroll-padding-top: var(--space-20);
}
body {
  min-height: 100dvh; line-height: 1.6;
  font-family: var(--font-body); font-size: var(--text-base);
  color: var(--color-text); background-color: var(--color-bg);
}
img, svg { display: block; max-width: 100%; height: auto; }
ul[role='list'] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.08; font-family: var(--font-display); letter-spacing: -0.01em; }
p, li, figcaption { text-wrap: pretty; max-width: 74ch; }
::selection { background: color-mix(in oklab, var(--color-primary) 28%, transparent); color: var(--color-text); }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }
button { cursor: pointer; background: none; border: none; }
table { border-collapse: collapse; width: 100%; }
a, button, [role='button'], [role='link'], input, textarea, select {
  transition: color var(--transition-interactive), background var(--transition-interactive),
    border-color var(--transition-interactive), box-shadow var(--transition-interactive), transform var(--transition-interactive);
}
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: -9999px; top: 0; z-index: 100; background: var(--color-primary); color: var(--color-text-inverse); padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm); }
.skip-link:focus { left: var(--space-4); top: var(--space-4); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* ===== Layout ===== */
.container { width: min(100% - 2.5rem, var(--content-default)); margin-inline: auto; }

.section-head { max-width: 60ch; margin-bottom: var(--space-12); }
.eyebrow { font-family: var(--font-body); font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-primary); margin-bottom: var(--space-3); }
.eyebrow-light { color: var(--color-accent-light); }
h2 { font-size: var(--text-xl); font-weight: 800; margin-bottom: var(--space-3); }
.section-sub { color: var(--color-text-muted); font-size: var(--text-base); }

/* ===== Header ===== */
.header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
}
.header-inner { display: flex; align-items: center; gap: var(--space-4); min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--color-primary); font-family: var(--font-display); font-weight: 800; font-size: var(--text-lg); text-decoration: none; letter-spacing: -0.02em; }
.brand-mark { flex: none; }
.brand-text-sub { color: var(--color-text-muted); font-weight: 600; font-size: var(--text-sm); }
.nav { display: flex; align-items: center; gap: var(--space-6); margin-left: auto; }
.nav a { color: var(--color-text-muted); text-decoration: none; font-size: var(--text-sm); font-weight: 500; }
.nav a:hover { color: var(--color-text); }
.nav-cta { background: var(--color-primary); color: var(--color-text-inverse) !important; padding: var(--space-2) var(--space-4); border-radius: var(--radius-full); font-weight: 600; }
.nav-cta:hover { background: var(--color-primary-hover); color: var(--color-text-inverse) !important; }
.theme-toggle { margin-left: var(--space-1); color: var(--color-text-muted); display: inline-flex; padding: var(--space-2); border-radius: var(--radius-full); }
.theme-toggle:hover { color: var(--color-text); background: var(--color-surface-offset); }

@media (max-width: 820px) {
  .nav { display: none; }
}

/* ===== Buttons ===== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); font-family: var(--font-display); font-weight: 700; font-size: var(--text-base); padding: var(--space-3) var(--space-6); border-radius: var(--radius-full); text-decoration: none; border: 2px solid transparent; letter-spacing: -0.01em; }
.btn-primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn-primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-ghost { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn-ghost:hover { border-color: var(--color-primary); color: var(--color-primary); transform: translateY(-1px); }
.btn-block { width: 100%; }

/* ===== Hero ===== */
.hero { position: relative; overflow: hidden; padding-block: clamp(var(--space-16), 8vw, var(--space-32)); border-bottom: 1px solid var(--color-divider); }
.hero-inner { position: relative; z-index: 1; max-width: 820px; }
.hero-pattern { position: absolute; inset: 0; z-index: 0; opacity: 0.5; }
.hero h1 { font-size: var(--text-hero); font-weight: 900; line-height: 0.98; letter-spacing: -0.035em; margin-bottom: var(--space-6); }
.hero h1 .accent { color: var(--color-primary); }
.lede { font-size: var(--text-lg); color: var(--color-text-muted); max-width: 62ch; margin-bottom: var(--space-8); }
.hero-cta { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-bottom: var(--space-10); }
.trust-chips { display: flex; flex-wrap: wrap; gap: var(--space-3) var(--space-6); }
.trust-chips li { font-size: var(--text-sm); font-weight: 600; color: var(--color-text-muted); display: inline-flex; align-items: center; gap: var(--space-2); }
.trust-chips li::before { content: ""; width: 8px; height: 8px; border-radius: var(--radius-full); background: var(--color-primary); }

/* seigaiha (wave) pattern */
.hero-pattern {
  background-image: radial-gradient(circle at 50% 0%, color-mix(in oklab, var(--color-primary) 12%, transparent), transparent 60%);
}
.hero-pattern::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    repeating-radial-gradient(circle at 0 100%, transparent 0 18px, color-mix(in oklab, var(--color-primary) 8%, transparent) 18px 19px);
  -webkit-mask: linear-gradient(180deg, transparent, #000 30%, #000 60%, transparent);
          mask: linear-gradient(180deg, transparent, #000 30%, #000 60%, transparent);
}

/* ===== Burned callout ===== */
.burned { background: var(--color-primary); color: var(--color-text-inverse); }
.burned-inner { display: flex; align-items: flex-start; gap: var(--space-5); padding-block: var(--space-10); }
.burned svg { flex: none; margin-top: var(--space-1); }
.burned-title { font-family: var(--font-display); font-weight: 800; font-size: var(--text-lg); margin-bottom: var(--space-2); }
.burned-body { color: color-mix(in oklab, var(--color-text-inverse) 85%, white); max-width: 70ch; }

/* ===== Rates / cards ===== */
.rates { padding-block: clamp(var(--space-16), 7vw, var(--space-24)); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); align-items: stretch; }
.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-8); display: flex; flex-direction: column; box-shadow: var(--shadow-sm); }
.card-featured { border-color: var(--color-primary); box-shadow: var(--shadow-md); position: relative; }
.card-featured::before { content: "Most popular"; position: absolute; top: -12px; left: var(--space-8); background: var(--color-primary); color: var(--color-text-inverse); font-family: var(--font-display); font-weight: 700; font-size: var(--text-xs); letter-spacing: 0.08em; text-transform: uppercase; padding: var(--space-1) var(--space-3); border-radius: var(--radius-full); }
.card-badge { align-self: flex-start; margin-bottom: var(--space-4); display: none; }
.card h3 { font-size: var(--text-lg); font-weight: 800; }
.price { font-family: var(--font-display); font-weight: 900; font-size: var(--text-2xl); color: var(--color-text); margin-block: var(--space-2) var(--space-1); letter-spacing: -0.03em; }
.price span { font-size: var(--text-base); font-weight: 600; color: var(--color-text-muted); }
.card-sched { font-size: var(--text-sm); font-weight: 600; color: var(--color-primary); margin-bottom: var(--space-4); }
.card-desc { color: var(--color-text-muted); font-size: var(--text-sm); margin-bottom: var(--space-6); flex: 1; }

@media (max-width: 900px) {
  .cards { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; }
  .card-featured { order: -1; }
}

/* ===== Included ===== */
.included { background: var(--color-surface); border-block: 1px solid var(--color-divider); padding-block: clamp(var(--space-16), 7vw, var(--space-24)); }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4) var(--space-8); }
.feature-grid li { display: flex; align-items: flex-start; gap: var(--space-3); font-size: var(--text-base); }
.check { flex: none; width: 22px; height: 22px; border-radius: var(--radius-full); background: var(--color-primary-soft); color: var(--color-primary); display: inline-flex; align-items: center; justify-content: center; font-size: 0.8rem; font-weight: 700; margin-top: 2px; }
@media (max-width: 640px) { .feature-grid { grid-template-columns: 1fr; } }

/* ===== Programs / schedule ===== */
.programs { padding-block: clamp(var(--space-16), 7vw, var(--space-24)); }
.sched-table { border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; }
.sched-row { display: grid; grid-template-columns: 1.4fr 0.6fr 1fr 1.2fr; gap: var(--space-3); padding: var(--space-4) var(--space-5); border-top: 1px solid var(--color-divider); align-items: center; }
.sched-row:first-child { border-top: none; }
.sched-head { background: var(--color-surface-offset); font-family: var(--font-display); font-weight: 700; font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-text-muted); }
.sched-prog { font-weight: 700; }
.sched-row:nth-child(even):not(.sched-head) { background: var(--color-surface); }
@media (max-width: 640px) {
  .sched-row { grid-template-columns: 1fr; gap: var(--space-1); }
  .sched-head { display: none; }
  .sched-row { padding-block: var(--space-3); }
}

/* ===== FAQ ===== */
.faq { background: var(--color-surface); border-top: 1px solid var(--color-divider); padding-block: clamp(var(--space-16), 7vw, var(--space-24)); }
.accordion { max-width: 760px; }
.accordion details { border-bottom: 1px solid var(--color-divider); }
.accordion summary { font-family: var(--font-display); font-weight: 700; font-size: var(--text-lg); padding: var(--space-5) 0; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after { content: "+"; font-family: var(--font-display); font-weight: 800; color: var(--color-primary); font-size: var(--text-xl); transition: transform var(--transition-interactive); }
.accordion details[open] summary::after { content: "–"; }
.accordion summary:hover { color: var(--color-primary); }
.accordion p { padding-bottom: var(--space-5); color: var(--color-text-muted); }

/* ===== Book ===== */
.book { background: var(--color-primary); color: var(--color-text-inverse); padding-block: clamp(var(--space-16), 7vw, var(--space-24)); }
.book-inner { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); align-items: start; }
.book-copy h2 { color: var(--color-text-inverse); }
.book-copy p { color: color-mix(in oklab, var(--color-text-inverse) 85%, white); margin-bottom: var(--space-6); }
.contact-line { display: inline-flex; align-items: center; gap: var(--space-3); color: var(--color-text-inverse); text-decoration: none; font-family: var(--font-display); font-weight: 700; font-size: var(--text-lg); background: color-mix(in oklab, var(--color-text-inverse) 14%, transparent); padding: var(--space-3) var(--space-5); border-radius: var(--radius-full); margin-bottom: var(--space-4); }
.contact-line:hover { background: color-mix(in oklab, var(--color-text-inverse) 24%, transparent); transform: translateY(-1px); }
.address-line { font-size: var(--text-sm); color: color-mix(in oklab, var(--color-text-inverse) 75%, white); }

.book-form { background: var(--color-text-inverse); color: var(--color-text); padding: var(--space-8); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.field { margin-bottom: var(--space-5); display: flex; flex-direction: column; gap: var(--space-2); }
.field label { font-size: var(--text-sm); font-weight: 600; }
.field input, .field select { width: 100%; padding: var(--space-3) var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface-2); font-size: var(--text-base); }
.field input:focus, .field select:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft); }
.book-form .btn { margin-top: var(--space-2); background: var(--color-primary); }
.form-note { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: var(--space-3); text-align: center; }

@media (max-width: 860px) { .book-inner { grid-template-columns: 1fr; gap: var(--space-8); } }

/* ===== Footer ===== */
.footer { background: var(--color-surface-offset); border-top: 1px solid var(--color-divider); padding-block: var(--space-12); }
.footer-inner { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-brand { display: inline-flex; align-items: center; gap: var(--space-3); color: var(--color-primary); font-family: var(--font-display); font-weight: 800; font-size: var(--text-lg); }
.footer-nap { color: var(--color-text-muted); }
.footer-nap a { color: var(--color-text); }
.footer-credit { font-size: var(--text-sm); color: var(--color-text-faint); max-width: 80ch; }