/* bn-components.css — Atomic 컴포넌트 클래스
 * 핸드오프 atoms.jsx 기반. 모든 색은 토큰 사용 → 자동 테마 전환.
 */

/* ── Button ─────────────────────────────────── */
.bn-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 34px; padding: 0 14px; font-size: 13px; font-weight: 600;
  letter-spacing: -0.01em; border-radius: 8px; cursor: pointer;
  border: 1px solid transparent; background: transparent;
  font-family: inherit;
  transition: background .12s, border-color .12s, color .12s;
  text-decoration: none; white-space: nowrap;
}
.bn-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.bn-btn--sm { height: 28px; padding: 0 10px; font-size: 12.5px; }
.bn-btn--lg { height: 42px; padding: 0 18px; font-size: 14px; }
.bn-btn--full { width: 100%; }

.bn-btn--primary {
  background: var(--bn-primary); color: var(--bn-primaryFg); border-color: var(--bn-primary);
}
.bn-btn--primary:hover:not(:disabled) { background: var(--bn-primaryHi); border-color: var(--bn-primaryHi); }

.bn-btn--secondary {
  background: var(--bn-bg); color: var(--bn-ink); border-color: var(--bn-line);
}
.bn-btn--secondary:hover:not(:disabled) { border-color: var(--bn-ink2); }

.bn-btn--ghost {
  background: transparent; color: var(--bn-ink2); border-color: transparent;
}
.bn-btn--ghost:hover:not(:disabled) { background: var(--bn-surface); }

.bn-btn--soft {
  background: var(--bn-surface); color: var(--bn-ink); border-color: var(--bn-line);
}
.bn-btn--soft:hover:not(:disabled) { background: var(--bn-surface2); }

.bn-btn--danger {
  background: transparent; color: var(--bn-up);
  border-color: color-mix(in srgb, var(--bn-up) 30%, transparent);
}
.bn-btn--danger:hover:not(:disabled) {
  background: color-mix(in srgb, var(--bn-up) 8%, transparent);
}

/* ── Badge ─────────────────────────────────── */
.bn-badge {
  display: inline-flex; align-items: center; gap: 4px;
  height: 22px; padding: 0 8px; border-radius: 5px;
  font-size: 11.5px; font-weight: 600; letter-spacing: -0.005em;
  white-space: nowrap; border: 1px solid var(--bn-line);
  background: var(--bn-surface2); color: var(--bn-ink2);
}
.bn-badge--sm { height: 18px; font-size: 10.5px; padding: 0 6px; }

.bn-badge--up {
  background: color-mix(in srgb, var(--bn-up) 10%, var(--bn-bg));
  color: var(--bn-up);
  border-color: color-mix(in srgb, var(--bn-up) 25%, transparent);
}
.bn-badge--down {
  background: color-mix(in srgb, var(--bn-down) 10%, var(--bn-bg));
  color: var(--bn-down);
  border-color: color-mix(in srgb, var(--bn-down) 25%, transparent);
}
.bn-badge--warn {
  background: color-mix(in srgb, var(--bn-warn) 12%, var(--bn-bg));
  color: var(--bn-warn);
  border-color: color-mix(in srgb, var(--bn-warn) 25%, transparent);
}
.bn-badge--ok {
  background: color-mix(in srgb, var(--bn-ok) 10%, var(--bn-bg));
  color: var(--bn-ok);
  border-color: color-mix(in srgb, var(--bn-ok) 25%, transparent);
}
.bn-badge--primary {
  background: var(--bn-primaryWk); color: var(--bn-primary);
  border-color: color-mix(in srgb, var(--bn-primary) 25%, transparent);
}
.bn-badge--flat {
  background: transparent; color: var(--bn-muted); border-color: var(--bn-line);
}

/* ── Surface (panel/card) ─────────────────── */
.bn-surface {
  background: var(--bn-bg);
  border: 1px solid var(--bn-line);
  border-radius: 10px;
  padding: 16px;
  transition: border-color .12s, background .12s;
}
.bn-surface--hover { cursor: pointer; }
.bn-surface--hover:hover { border-color: var(--bn-ink2); }

.bn-surface--alt { background: var(--bn-surface); }
.bn-surface--flat { box-shadow: none; }

.bn-panel-hd {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: 12px; margin-bottom: 12px;
  border-bottom: 1px solid var(--bn-lineSoft);
}

/* ── Input ─────────────────────────────────── */
.bn-input {
  display: flex; align-items: center; gap: 8px;
  height: 36px; padding: 0 12px;
  background: var(--bn-bg);
  border: 1px solid var(--bn-line);
  border-radius: 8px;
  transition: border-color .12s, box-shadow .12s;
}
.bn-input:focus-within {
  border-color: var(--bn-ink2);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--bn-primary) 12%, transparent);
}
.bn-input > input,
.bn-input > select,
.bn-input > textarea {
  flex: 1; border: none; outline: none; background: transparent;
  font-family: inherit; font-size: 13.5px; color: var(--bn-ink);
}
.bn-input--mono > input,
.bn-input--mono > select {
  font-family: var(--bn-font-mono);
  font-variant-numeric: tabular-nums;
}
.bn-input__icon { color: var(--bn-mutedSoft); font-size: 14px; flex-shrink: 0; }
.bn-input__suffix { color: var(--bn-muted); font-size: 13px; }

/* ── Chip (filter pill) ──────────────────── */
.bn-chip {
  display: inline-flex; align-items: center;
  height: 30px; padding: 0 12px;
  font-size: 12.5px; font-weight: 500; letter-spacing: -0.005em;
  background: var(--bn-bg); color: var(--bn-ink2);
  border: 1px solid var(--bn-line); border-radius: 999px;
  cursor: pointer; white-space: nowrap;
  transition: background .12s, border-color .12s, color .12s;
  font-family: inherit;
}
.bn-chip:hover { border-color: var(--bn-ink2); }
.bn-chip--active {
  background: var(--bn-ink); color: var(--bn-bg); border-color: var(--bn-ink);
}
.bn-chip--sm { height: 26px; padding: 0 10px; font-size: 12px; }

/* ── Thumb (placeholder image) ──────────── */
.bn-thumb {
  border-radius: 6px; flex-shrink: 0;
  background: repeating-linear-gradient(135deg,
    var(--bn-surface2) 0 6px, var(--bn-surface) 6px 12px);
  border: 1px solid var(--bn-line);
}

/* ── Theme toggle button (uses --bn- tokens) ── */
.bn-theme-toggle {
  width: 32px; height: 32px; border-radius: 7px;
  border: 1px solid var(--bn-line);
  background: var(--bn-bg); color: var(--bn-ink2);
  cursor: pointer; font-size: 13px;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background .12s, border-color .12s;
}
.bn-theme-toggle:hover { background: var(--bn-surface); border-color: var(--bn-ink2); }