/* /assets/css/theme.css
 * WCW Theme (shared asset)
 * - Shared across all tenants (ops copies same file per tenant).
 * - Provides structure-safe base layout + components.
 * - Visual fine-tuning is expected to be done in /assets/css/overrides.css (NOT generated).
 */

/* ============================================================
 * 0) Generic tokens (theme-side)
 * ============================================================ */
:root{
  --bg:#ffffff;
  --surface:#fafafa;
  --subtle:#f3f3f3;

  --text:rgba(0,0,0,.86);
  --heading:rgba(0,0,0,.92);
  --muted:rgba(0,0,0,.62);
  --inverse:rgba(255,255,255,.92);

  --primary:#111111;
  --secondary:#333333;
  --accent:#ff7a18;

  --warning:#c2410c;
  --success:#166534;

  --border:rgba(0,0,0,.12);
  --border-strong:rgba(0,0,0,.18);
  --border-width:1px;

  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:22px;

  --shadow-sm:0 6px 16px rgba(0,0,0,.08);
  --shadow-md:0 10px 28px rgba(0,0,0,.12);

  --container-max:1120px;
  --page-pad:20px;
  --page-pad-lg:32px;

  --section-pad-y:56px;
  --section-gap:56px;

  --stack-gap:14px;
  --heading-body-gap:10px;

  --grid-gap:18px;
  --break-md:768px;

  --prose-max:68ch;

  --nav-minh:64px;
  --nav-bg:rgba(255,255,255,.92);
  --nav-shadow:var(--shadow-sm);

  --footer-pad-y:40px;
  --legal-font:13px;

  --btn-pad-y:12px;
  --btn-pad-x:14px;

  --focus-ring:rgba(0,0,0,.55);
  --focus-offset:3px;

  --image-filter:none;

  /* Media safety net (image frame) */
  --media-aspect:16/9;
  --media-bg:rgba(0,0,0,.04);
  --media-border:var(--border);
}

/* ============================================================
 * 1) Base / reset
 * ============================================================ */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans JP",sans-serif;
  font-size:16px;
  line-height:1.75;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg,video{max-width:100%; height:auto; display:block}
a{color:inherit; text-decoration:underline; text-underline-offset:.18em}
a:hover{opacity:.82}
p{margin:0}
ul,ol{margin:0; padding-left:1.25em}
li{margin:.25em 0}
hr{border:none; border-top:var(--border-width) solid var(--border); margin:24px 0}

/* ✅ Safety: honor hidden everywhere consistently */
[hidden]{display:none !important}

/* Focus (accessibility-safe) */
:where(a,button,input,textarea,select,summary,[tabindex]):focus-visible{
  outline:2px solid var(--focus-ring);
  outline-offset:var(--focus-offset);
}

/* Typography */
h1,h2,h3,h4,h5,h6{
  margin:0;
  color:var(--heading);
  line-height:1.25;
  letter-spacing:-0.01em;
}
h1{font-size:40px}
h2{font-size:28px}
h3{font-size:20px}
@media (max-width:420px){
  h1{font-size:34px}
  h2{font-size:24px}
}

/* ============================================================
 * 2) Layout helpers
 * ============================================================ */
.container,.wrap,.inner{
  max-width:var(--container-max);
  margin-inline:auto;
  padding-inline:var(--page-pad);
}
@media (min-width:980px){
  .container,.wrap,.inner{padding-inline:var(--page-pad-lg)}
}

.stack{display:flex; flex-direction:column; gap:var(--stack-gap)}
.prose{max-width:var(--prose-max)}
.center{text-align:center}
.muted{color:var(--muted)}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:2px 10px;
  border-radius:999px;
  background:rgba(0,0,0,.06);
  color:rgba(0,0,0,.8);
  font-size:12px;
  line-height:1.8;
}

/* Sections */
.section{
  padding-block:var(--section-pad-y);
}
.section--alt{
  background:var(--surface);
}
.section + .section{border-top:var(--border-width) solid rgba(0,0,0,.04)}

/* Cards / grids */
.grid{
  display:grid;
  gap:var(--grid-gap);
}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:var(--break-md)){
  .grid--2,.grid--3{grid-template-columns:1fr}
}
.card{
  background:var(--bg);
  border:var(--border-width) solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:18px;
}
.card--subtle{
  background:var(--subtle);
}
.card__title{font-weight:800; margin-bottom:8px}
.card__meta{color:var(--muted); font-size:13px}

/* ============================================================
 * 3) Header / navigation (supports drawer)
 * ============================================================ */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:var(--nav-bg);
  border-bottom:var(--border-width) solid var(--border);
  backdrop-filter:saturate(1.2) blur(10px);
}
.site-header__inner{
  min-height:var(--nav-minh);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.site-brand{
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
}
.site-brand__logo{
  width:34px;
  height:34px;
  border-radius:10px;
  background:rgba(0,0,0,.06);
}
.site-brand__name{
  font-weight:900;
  letter-spacing:-0.01em;
  text-decoration:none;
}
.site-nav{
  display:flex;
  align-items:center;
  gap:14px;
}
.site-nav a{
  text-decoration:none;
  padding:10px 10px;
  border-radius:12px;
}
.site-nav a[aria-current="page"],
.site-nav a[aria-current="true"]{
  background:rgba(0,0,0,.06);
}

/* Mobile nav toggle */
.nav-toggle,
[data-nav-toggle]{
  display:none;
  border:var(--border-width) solid var(--border-strong);
  background:#fff;
  border-radius:12px;
  padding:8px 10px;
  cursor:pointer;
}
.nav-toggle:active,
[data-nav-toggle]:active{transform:translateY(1px)}

/* Drawer */
.nav-drawer-overlay,
[data-nav-overlay]{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.32);
  z-index:60;
}
.nav-drawer,
[data-nav-drawer]{
  display:none;
  position:fixed;
  top:0;
  right:0;
  height:100%;
  width:min(88vw,360px);
  background:var(--bg);
  border-left:var(--border-width) solid var(--border);
  box-shadow:var(--shadow-md);
  z-index:70;
  padding:16px;
  overflow:auto;
}
.nav-drawer__header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding-bottom:10px;
  border-bottom:var(--border-width) solid rgba(0,0,0,.06);
  margin-bottom:12px;
}
.nav-drawer__close,
[data-nav-close]{
  border:var(--border-width) solid var(--border-strong);
  background:#fff;
  border-radius:12px;
  padding:8px 10px;
  cursor:pointer;
}
.nav-drawer a,
[data-nav-drawer] a{
  display:block;
  text-decoration:none;
  padding:12px 10px;
  border-radius:12px;
}
.nav-drawer a:hover,
[data-nav-drawer] a:hover{background:rgba(0,0,0,.04)}
html.is-drawer-open .nav-drawer-overlay,
html.is-drawer-open [data-nav-overlay]{display:block}
html.is-drawer-open .nav-drawer,
html.is-drawer-open [data-nav-drawer]{display:block}
html.is-drawer-open{overflow:hidden}

/* Breakpoint behavior */
@media (max-width:var(--break-md)){
  .site-nav{display:none}
  .nav-toggle,
  [data-nav-toggle]{display:inline-flex; align-items:center; gap:8px}
}

/* ============================================================
 * 4) Breadcrumbs
 * ============================================================ */
.breadcrumbs{
  font-size:13px;
  color:var(--muted);
  padding-top:14px;
}
.breadcrumbs a{color:inherit; text-decoration:none}
.breadcrumbs ol{
  list-style:none;
  padding:0;
  margin:0;
  display:flex;
  flex-wrap:wrap;
  gap:6px;
}
.breadcrumbs li{margin:0}
.breadcrumbs li+li::before{
  content:"/";
  margin-right:6px;
  color:rgba(0,0,0,.35);
}

/* ============================================================
 * 5) Buttons
 * ============================================================ */
.btn,
button,
[type="button"],
[type="submit"]{
  border-radius:var(--radius-md);
  font:inherit;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:var(--btn-pad-y) var(--btn-pad-x);
  border:var(--border-width) solid var(--border-strong);
  background:#fff;
  cursor:pointer;
  text-decoration:none;
}
.btn:hover{background:rgba(0,0,0,.04)}
.btn:active{transform:translateY(1px)}
.btn--primary{
  background:var(--primary);
  color:var(--inverse);
  border-color:transparent;
}
.btn--primary:hover{opacity:.92}
.btn--ghost{
  background:transparent;
}

/* ============================================================
 * 6) Forms
 * ============================================================ */
form{margin:0}
.form{
  background:var(--bg);
  border:var(--border-width) solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:18px;
}
.field{display:flex; flex-direction:column; gap:6px}
.field label{font-size:13px; color:var(--muted)}
.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field textarea,
.field select{
  width:100%;
  border-radius:var(--radius-sm);
  border:var(--border-width) solid var(--border-strong);
  padding:12px 14px;
  background:#fff;
  color:var(--text);
  font:inherit;
}
.field textarea{min-height:140px; resize:vertical}
.field .help{font-size:12px; color:var(--muted)}
.form-actions{display:flex; gap:10px; flex-wrap:wrap; margin-top:12px}

/* Honeypot MUST NOT be display:none — hide offscreen */
.wcw-honeypot,
[data-wcw-honeypot]{
  position:absolute !important;
  left:-10000px !important;
  top:auto !important;
  width:1px !important;
  height:1px !important;
  overflow:hidden !important;
  white-space:nowrap !important;
  clip:rect(0 0 0 0) !important;
  clip-path:inset(50%) !important;
  opacity:0 !important;
  pointer-events:none !important;
}

/* ============================================================
 * 7) Tables
 * ============================================================ */
table{border-collapse:collapse; width:100%}
th,td{
  border:var(--border-width) solid var(--border);
  padding:10px 12px;
  text-align:left;
}
th{background:var(--surface); color:var(--heading)}

/* ============================================================
 * 8) Footer
 * ============================================================ */
.site-footer{
  background:var(--surface);
  border-top:var(--border-width) solid var(--border);
  padding-block:var(--footer-pad-y);
}
.footer-grid{
  display:grid;
  gap:18px;
  grid-template-columns: 1.2fr 1fr;
}
@media (max-width:var(--break-md)){
  .footer-grid{grid-template-columns:1fr}
}
.footer-links{
  display:flex;
  flex-wrap:wrap;
  gap:10px 16px;
}
.footer-links a{text-decoration:none}
.footer-legal{
  margin-top:14px;
  padding-top:14px;
  border-top:var(--border-width) solid rgba(0,0,0,.06);
  font-size:var(--legal-font);
  color:var(--muted);
}
.footer-legal a{color:inherit; text-decoration:none}
.footer-legal a:hover{text-decoration:underline}

/* ============================================================
 * 9) Media safety net (image frame)
 * ============================================================ */
[data-wcw-media="image"]{
  width:100%;
  overflow:hidden;
  border-radius:var(--radius-lg);
  background:var(--media-bg);
  border:var(--border-width) solid var(--media-border);
  box-shadow:var(--shadow-sm);
  aspect-ratio:var(--media-aspect);
}
[data-wcw-media="image"][data-aspect="16:9"]{aspect-ratio:16/9}
[data-wcw-media="image"][data-aspect="4:3"]{aspect-ratio:4/3}
[data-wcw-media="image"][data-aspect="1:1"]{aspect-ratio:1/1}

[data-wcw-media="image"] > img[data-wcw-media-img]{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
  background:var(--media-bg);
  border:0;
}

/* ============================================================
 * 10) Media tone hook
 * ============================================================ */
img{filter:var(--image-filter)}

/* ============================================================
 * 11) Motion safety defaults
 * ============================================================ */
@media (prefers-reduced-motion: reduce){
  html:focus-within{scroll-behavior:auto}
}