/* =========================================================
   SPC Design System — global stylesheet
   ========================================================= */

@import url("./tokens.css");

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--surface-page);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11";
}

/* ---------- Concrete grain overlay (subtle, optional class) ---------- */
.grain {
  position: relative;
  isolation: isolate;
}
.grain::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.5 0'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='0.5'/></svg>");
  opacity: 0.06;
  mix-blend-mode: multiply;
}

/* ---------- TYPOGRAPHY ---------- */
.t-display { font-family: var(--font-display); font-size: var(--fs-display); line-height: var(--lh-tight); letter-spacing: var(--tracking-tight); font-weight: 600; }
.t-h1      { font-family: var(--font-display); font-size: var(--fs-h1);      line-height: var(--lh-tight); letter-spacing: var(--tracking-tight); font-weight: 600; }
.t-h2      { font-family: var(--font-display); font-size: var(--fs-h2);      line-height: var(--lh-snug);  letter-spacing: var(--tracking-tight); font-weight: 600; }
.t-h3      { font-family: var(--font-display); font-size: var(--fs-h3);      line-height: var(--lh-snug);  letter-spacing: -0.01em; font-weight: 600; }
.t-h4      { font-family: var(--font-display); font-size: var(--fs-h4);      line-height: 1.25;            letter-spacing: -0.005em; font-weight: 600; }
.t-h5      { font-family: var(--font-display); font-size: var(--fs-h5);      line-height: 1.3;             font-weight: 600; }
.t-h6      { font-family: var(--font-body);    font-size: var(--fs-h6);      line-height: 1.35;            font-weight: 600; }

.t-body-lg { font-size: var(--fs-body-lg); line-height: var(--lh-loose); }
.t-body    { font-size: var(--fs-body);    line-height: var(--lh-normal); }
.t-body-sm { font-size: var(--fs-body-sm); line-height: var(--lh-normal); }
.t-caption { font-size: var(--fs-caption); line-height: 1.4; color: var(--text-secondary); }

.t-label {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  font-weight: 500;
  color: var(--text-secondary);
}

.t-mono { font-family: var(--font-mono); letter-spacing: var(--tracking-mono); }

.text-mute { color: var(--text-secondary); }
.text-faint { color: var(--text-tertiary); }
.text-red   { color: var(--spc-red-500); }

/* ---------- LAYOUT PRIMITIVES ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.row { display: flex; gap: var(--grid-gutter); }
.col { flex: 1; min-width: 0; }
.stack { display: flex; flex-direction: column; }
.cluster { display: flex; flex-wrap: wrap; align-items: center; }

/* gap utilities */
.gap-1{gap:4px}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}.gap-6{gap:24px}.gap-8{gap:32px}.gap-12{gap:48px}.gap-16{gap:64px}

/* ---------- HAIRLINE / DIVIDERS ---------- */
.hairline { height: 1px; background: var(--border-hairline); border: 0; margin: 0; }
.rule-strong { height: 1px; background: var(--border-strong); border: 0; }

/* ---------- BUTTONS ---------- */
.btn {
  --btn-bg: var(--concrete-95);
  --btn-fg: #fff;
  --btn-bd: var(--concrete-95);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 22px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  border: 1.5px solid var(--btn-bd);
  background: var(--btn-bg);
  color: var(--btn-fg);
  border-radius: var(--radius-1);
  transition: transform var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
  white-space: nowrap;
}
.btn:hover { transform: translate(-2px, -2px); box-shadow: var(--elev-block); }
.btn:active { transform: translate(0, 0); box-shadow: 0 0 0 0 transparent; }
.btn:focus-visible { outline: 2px solid var(--spc-red-500); outline-offset: 2px; }
.btn[disabled], .btn.is-disabled {
  opacity: 0.4; pointer-events: none;
}

.btn--primary {
  --btn-bg: var(--spc-red-500);
  --btn-fg: #fff;
  --btn-bd: var(--spc-red-500);
}
.btn--primary:hover { box-shadow: var(--elev-block); --btn-bg: var(--spc-red-600); --btn-bd: var(--spc-red-600); }

.btn--secondary {
  --btn-bg: var(--concrete-95);
  --btn-fg: #fff;
  --btn-bd: var(--concrete-95);
}

.btn--outline {
  --btn-bg: transparent;
  --btn-fg: var(--concrete-95);
  --btn-bd: var(--concrete-95);
}
.btn--outline:hover { --btn-bg: var(--concrete-95); --btn-fg: #fff; }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--concrete-95);
  --btn-bd: transparent;
  padding: 12px 14px;
}
.btn--ghost:hover { --btn-bg: var(--concrete-15); box-shadow: none; transform: none; }

.btn--sm { padding: 9px 14px; font-size: 12px; }
.btn--lg { padding: 18px 28px; font-size: 15px; }

.btn .icon { width: 16px; height: 16px; }

/* ---------- INPUTS ---------- */
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
}
.field__label {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-secondary);
}
.field__hint { font-size: 12px; color: var(--text-tertiary); }
.field__error { font-size: 12px; color: var(--sem-error); font-family: var(--font-mono); }

.input, .select, .textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--surface-card);
  border: 1.5px solid var(--border-default);
  border-radius: var(--radius-1);
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text-primary);
  transition: border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.input::placeholder, .textarea::placeholder { color: var(--text-tertiary); }
.input:hover, .select:hover, .textarea:hover { border-color: var(--concrete-50); }
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--concrete-95);
  box-shadow: inset 0 -2px 0 0 var(--spc-red-500);
}
.input[disabled], .select[disabled], .textarea[disabled] {
  background: var(--concrete-15); color: var(--text-tertiary); cursor: not-allowed;
}
.input.is-error, .select.is-error, .textarea.is-error {
  border-color: var(--sem-error);
}

.textarea { min-height: 96px; resize: vertical; }

.select {
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%2315161A' stroke-width='1.5'><path d='M4 6l4 4 4-4'/></svg>");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

/* ---------- CARDS ---------- */
.card {
  background: var(--surface-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-1);
  display: flex;
  flex-direction: column;
}
.card__media {
  background: var(--concrete-15);
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.card__body { padding: 20px; display: flex; flex-direction: column; gap: 8px; }
.card__footer { padding: 16px 20px; border-top: 1px solid var(--border-hairline); display: flex; justify-content: space-between; align-items: center; }

/* Product card */
.product-card {
  background: var(--surface-card);
  border: 1px solid var(--border-hairline);
  display: flex;
  flex-direction: column;
  transition: transform var(--dur-normal) var(--ease-out), border-color var(--dur-normal) var(--ease-out);
  position: relative;
}
.product-card:hover { transform: translateY(-4px); border-color: var(--concrete-95); }
.product-card:hover .product-card__cta-bar { background: var(--spc-red-500); color: #fff; }
.product-card__media {
  aspect-ratio: 1 / 1;
  background: var(--concrete-15);
  position: relative;
  overflow: hidden;
}
.product-card__sku {
  position: absolute;
  top: 12px; left: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-label);
  background: rgba(255,255,255,0.92);
  padding: 4px 8px;
  border: 1px solid var(--concrete-30);
}
.product-card__body { padding: 20px; display: flex; flex-direction: column; gap: 6px; }
.product-card__cta-bar {
  margin-top: auto;
  padding: 14px 20px;
  border-top: 1px solid var(--border-hairline);
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  background: var(--concrete-05);
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}

/* ---------- BADGES ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  background: var(--concrete-15);
  color: var(--text-primary);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-1);
}
.badge--solid { background: var(--concrete-95); color: #fff; border-color: var(--concrete-95); }
.badge--red   { background: var(--spc-red-500); color: #fff; border-color: var(--spc-red-500); }
.badge--success { background: var(--sem-success-bg); color: var(--sem-success); border-color: transparent; }
.badge--warning { background: var(--sem-warning-bg); color: var(--sem-warning); border-color: transparent; }
.badge--error   { background: var(--sem-error-bg); color: var(--sem-error); border-color: transparent; }
.badge--info    { background: var(--sem-info-bg); color: var(--sem-info); border-color: transparent; }
.badge--dot::before { content: ""; width: 6px; height: 6px; background: currentColor; border-radius: 50%; }

/* ---------- TABS ---------- */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border-hairline);
}
.tab {
  padding: 14px 20px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-secondary);
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.tab:hover { color: var(--text-primary); }
.tab.is-active { color: var(--text-primary); border-bottom-color: var(--spc-red-500); }

/* ---------- TABLE ---------- */
.tbl {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-body);
  font-size: 14px;
}
.tbl th, .tbl td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-hairline);
  vertical-align: top;
}
.tbl th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-secondary);
  font-weight: 500;
  border-bottom: 1.5px solid var(--border-strong);
  background: var(--concrete-05);
}
.tbl tr:hover td { background: var(--concrete-05); }
.tbl--specs th { width: 40%; }
.tbl--specs td { font-family: var(--font-mono); }

/* ---------- PAGINATION ---------- */
.pager { display: flex; gap: 4px; align-items: center; }
.pager__item {
  min-width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border-hairline);
  background: var(--surface-card);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 13px;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--dur-fast) var(--ease-out);
  padding: 0 12px;
}
.pager__item:hover { background: var(--concrete-15); }
.pager__item.is-active { background: var(--concrete-95); color: #fff; border-color: var(--concrete-95); }
.pager__item.is-disabled { opacity: 0.35; pointer-events: none; }

/* ---------- MODAL ---------- */
.modal-demo {
  position: relative;
  background: var(--concrete-05);
  border: 1px dashed var(--border-default);
  padding: 40px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal {
  width: 100%;
  max-width: 480px;
  background: var(--surface-card);
  border: 1px solid var(--border-default);
  box-shadow: var(--elev-modal);
  display: flex;
  flex-direction: column;
}
.modal__header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-hairline);
  display: flex; justify-content: space-between; align-items: center;
}
.modal__body { padding: 24px; }
.modal__footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-hairline);
  display: flex; gap: 12px; justify-content: flex-end;
  background: var(--concrete-05);
}

/* ---------- NAV ---------- */
.navbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 24px;
  background: var(--surface-card);
  border: 1px solid var(--border-hairline);
}
.navbar__brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; letter-spacing: var(--tracking-tight); }
.navbar__nav { display: flex; gap: 4px; }
.nav-link {
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
  border: 1px solid transparent;
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.nav-link:hover { background: var(--concrete-15); }
.nav-link.is-active {
  border-color: var(--concrete-95);
}

/* ---------- ICON ---------- */
.ico {
  width: 18px; height: 18px;
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
  flex-shrink: 0;
}

/* ---------- SWATCHES ---------- */
.swatch {
  border: 1px solid var(--border-hairline);
  background: var(--surface-card);
  display: flex; flex-direction: column;
}
.swatch__chip { aspect-ratio: 4 / 3; }
.swatch__meta {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-top: 1px solid var(--border-hairline);
  font-family: var(--font-mono);
  font-size: 11px;
}
.swatch__name { font-family: var(--font-body); font-weight: 600; font-size: 13px; letter-spacing: 0; text-transform: none; color: var(--text-primary); }
.swatch__token { color: var(--text-secondary); }

/* ---------- KBD / CODE ---------- */
.kbd {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--concrete-15);
  border: 1px solid var(--border-hairline);
  padding: 2px 6px;
  border-radius: var(--radius-1);
}

/* ---------- FOCUS RING ---------- */
:focus-visible { outline: 2px solid var(--spc-red-500); outline-offset: 2px; }