/*
 * KRDS Component Library — vanilla, token-bound implementation
 * Mirrors the Figma design system (file 6Kx2gzcduyIyLGN3Ck2rtm).
 * Consumes the site's brand tokens from styles.css (:root) and adds the
 * KRDS status/semantic tokens the components need. No build step, no framework.
 */

:root {
  /* status tokens — KRDS-standard, not present in brand palette */
  --krds-info: #256ef4;
  --krds-success: #2e7d32;
  --krds-warning: #b45309;
  --krds-danger: #c0392b;
  --krds-info-bg: #eef4ff;
  --krds-success-bg: #eaf5eb;
  --krds-warning-bg: #fdf3e7;
  --krds-danger-bg: #fdecea;
  /* component tokens derived from brand palette */
  --krds-radius: 4px;
  --krds-radius-lg: 12px;
  --krds-gap: 8px;
  --krds-disabled: color-mix(in srgb, var(--muted) 40%, var(--white));
}

.krds-scope {
  color: var(--ink);
  font-family: "Pretendard CWL", "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif;
  line-break: keep-all;
  word-break: keep-all;
}

/* Shared focus ring — matches styles.css convention (teal, 2px, offset 2px) */
.krds-scope :is(button, a, input, select, textarea, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

/* ---------- Button ---------- */
.krds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--krds-gap);
  min-height: 48px;
  padding: 12px 20px;
  border: 1px solid var(--ink);
  border-radius: var(--krds-radius);
  background: var(--white);
  color: var(--ink);
  font: inherit;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  transition: opacity 0.2s, background 0.2s;
}
.krds-btn:hover { opacity: 0.85; }
.krds-btn:active { opacity: 0.7; }
.krds-btn--primary { background: var(--ink); color: var(--white); }
.krds-btn--secondary { background: var(--white); color: var(--ink); }
.krds-btn--tertiary { border-color: transparent; background: transparent; text-decoration: underline; }
.krds-btn--danger { background: var(--krds-danger); border-color: var(--krds-danger); color: var(--white); }
.krds-btn--sm { min-height: 36px; padding: 8px 14px; font-size: 14px; }
.krds-btn--lg { min-height: 56px; padding: 16px 28px; font-size: 16px; }
.krds-btn[disabled], .krds-btn[aria-disabled="true"] {
  opacity: 1;
  cursor: not-allowed;
  background: var(--krds-disabled);
  border-color: var(--krds-disabled);
  color: var(--muted);
}
.krds-btn--loading { position: relative; color: transparent; pointer-events: none; }
.krds-btn--loading::after {
  content: ""; position: absolute; width: 16px; height: 16px;
  border: 2px solid currentColor; border-top-color: transparent; border-radius: 50%;
  color: var(--white); animation: krds-spin 0.7s linear infinite;
}

/* ---------- Text field (input / textarea) ---------- */
.krds-field { display: grid; gap: 6px; }
.krds-field__label { font-size: 14px; font-weight: 700; }
.krds-field__label .krds-req { color: var(--krds-danger); margin-left: 2px; }
.krds-field__control {
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--krds-radius);
  background: var(--white);
  font: inherit;
  font-size: 15px;
  color: var(--ink);
}
.krds-field__control::placeholder { color: var(--muted); }
.krds-field__control:hover { border-color: var(--muted); }
.krds-field__help { font-size: 13px; color: var(--muted); }
.krds-field__error { font-size: 13px; color: var(--krds-danger); font-weight: 700; }
.krds-field--error .krds-field__control { border-color: var(--krds-danger); }
.krds-field__control[disabled] { background: var(--paper); color: var(--muted); cursor: not-allowed; }

/* ---------- Checkbox / Radio (native inputs, accent-color) ---------- */
.krds-choice { display: inline-flex; align-items: center; gap: 10px; font-size: 15px; cursor: pointer; }
.krds-choice input { width: 20px; height: 20px; accent-color: var(--teal); cursor: pointer; }
.krds-choice input[disabled] { cursor: not-allowed; }
.krds-choice:has(input[disabled]) { color: var(--muted); cursor: not-allowed; }

/* ---------- Select ---------- */
.krds-select {
  min-height: 48px;
  padding: 12px 40px 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--krds-radius);
  background: var(--white)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' fill='none' stroke='%234f5968' stroke-width='2'/%3E%3C/svg%3E")
    no-repeat right 14px center;
  font: inherit; font-size: 15px; color: var(--ink); appearance: none; cursor: pointer;
}

/* ---------- Badge ---------- */
.krds-badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px; border-radius: 999px;
  font-size: 12px; font-weight: 800; line-height: 1.6;
  background: var(--line); color: var(--ink);
}
.krds-badge--info { background: var(--krds-info-bg); color: var(--krds-info); }
.krds-badge--success { background: var(--krds-success-bg); color: var(--krds-success); }
.krds-badge--warning { background: var(--krds-warning-bg); color: var(--krds-warning); }
.krds-badge--danger { background: var(--krds-danger-bg); color: var(--krds-danger); }

/* ---------- Tag (removable) ---------- */
.krds-tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border: 1px solid var(--line); border-radius: 999px;
  font-size: 13px; background: var(--white);
}
.krds-tag__remove {
  border: 0; background: none; padding: 0; cursor: pointer;
  font-size: 14px; line-height: 1; color: var(--muted);
}
.krds-tag__remove:hover { color: var(--ink); }

/* ---------- Tabs ---------- */
.krds-tabs__list { display: flex; gap: 4px; border-bottom: 2px solid var(--line); }
.krds-tab {
  border: 0; background: none; padding: 12px 16px; cursor: pointer;
  font: inherit; font-size: 15px; font-weight: 700; color: var(--muted);
  border-bottom: 2px solid transparent; margin-bottom: -2px;
}
.krds-tab[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--teal); }
.krds-tabpanel { padding: 20px 4px; }
.krds-tabpanel[hidden] { display: none; }

/* ---------- Accordion (native details/summary) ---------- */
.krds-accordion { border: 1px solid var(--line); border-radius: var(--krds-radius); }
.krds-accordion > summary {
  list-style: none; cursor: pointer; padding: 16px 18px;
  font-weight: 700; display: flex; justify-content: space-between; align-items: center;
}
.krds-accordion > summary::-webkit-details-marker { display: none; }
.krds-accordion > summary::after { content: "+"; font-size: 20px; color: var(--muted); }
.krds-accordion[open] > summary::after { content: "\2212"; }
.krds-accordion__body { padding: 0 18px 18px; color: var(--muted); }

/* ---------- Pagination ---------- */
.krds-pagination { display: flex; gap: 4px; align-items: center; list-style: none; padding: 0; }
.krds-pagination a, .krds-pagination span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 40px; min-height: 40px; padding: 0 8px;
  border-radius: var(--krds-radius); text-decoration: none; color: var(--ink); font-weight: 700;
}
.krds-pagination a:hover { background: var(--paper); }
.krds-pagination [aria-current="page"] { background: var(--ink); color: var(--white); }
.krds-pagination [aria-disabled="true"] { color: var(--krds-disabled); pointer-events: none; }

/* ---------- Alert ---------- */
.krds-alert {
  display: flex; gap: 12px; padding: 14px 16px;
  border-radius: var(--krds-radius); border-left: 4px solid var(--muted);
  background: var(--paper); font-size: 15px;
}
.krds-alert--info { border-left-color: var(--krds-info); background: var(--krds-info-bg); }
.krds-alert--success { border-left-color: var(--krds-success); background: var(--krds-success-bg); }
.krds-alert--warning { border-left-color: var(--krds-warning); background: var(--krds-warning-bg); }
.krds-alert--danger { border-left-color: var(--krds-danger); background: var(--krds-danger-bg); }
.krds-alert__title { font-weight: 800; }

/* ---------- Toast ---------- */
.krds-toast {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 14px 18px; border-radius: var(--krds-radius-lg);
  background: var(--ink); color: var(--white); box-shadow: var(--shadow); font-size: 15px;
}
.krds-toast__action { border: 0; background: none; color: var(--gold); font-weight: 800; cursor: pointer; }

@keyframes krds-spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  .krds-btn--loading::after { animation: none; }
}