/*
 * Kaidoku (解読) — cipher decoder
 * Builds on the CyberRamen tokens in main.css: --cream, --ink, --red,
 * --font-display, --font-mono. No new colours, no external assets.
 */

.kd-wrap { max-width: 1120px; margin: 0 auto; }

/* Several panels below set display:flex/grid, which outranks the user-agent
   [hidden] rule and would leave empty boxes on the page. Win it back once. */
.kd-wrap [hidden] { display: none !important; }

/* ── Trust strip ─────────────────────────────────────────────────────── */

.kd-trust {
    display: flex; align-items: center; gap: 0.6rem;
    padding: 0.7rem 1rem; margin-bottom: 1.25rem;
    background: var(--red-dim); border-left: 3px solid var(--red);
    border-radius: 4px; font-size: 0.85rem; color: var(--ink-light);
}
.kd-dot {
    width: 9px; height: 9px; border-radius: 50%;
    background: var(--color-success); flex: 0 0 auto;
}

/* ── Control bar ─────────────────────────────────────────────────────── */

.kd-controls {
    display: flex; flex-wrap: wrap; gap: 0.9rem; align-items: flex-end;
    padding: 1rem; border: 1px solid var(--cream-darker);
    border-radius: 6px; background: var(--cream);
}
.kd-field { display: flex; flex-direction: column; gap: 0.3rem; min-width: 0; }
.kd-field > label,
.kd-field > .kd-label {
    font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase;
    color: var(--ink-muted); font-weight: 600;
}
.kd-field--grow { flex: 1 1 260px; }
.kd-field select, .kd-field input, .kd-field textarea { width: 100%; }

.kd-dirs { display: inline-flex; border: 1px solid var(--border-control); border-radius: 4px; overflow: hidden; }
.kd-dirs button {
    min-height: 40px; border: 0; border-radius: 0; padding: 0.45rem 1rem;
    background: var(--cream); color: var(--ink-light); font-size: 0.78rem;
}
.kd-dirs button[aria-pressed="true"] { background: var(--red); color: var(--cream); }
.kd-dirs button:disabled { opacity: 0.4; cursor: not-allowed; }
.kd-dirs button:hover:not(:disabled) { color: var(--red); }
.kd-dirs button[aria-pressed="true"]:hover { color: var(--cream); }

/* ── Dynamic parameter row ───────────────────────────────────────────── */

.kd-params {
    display: flex; flex-wrap: wrap; gap: 0.9rem; align-items: flex-end;
    margin-top: 0.9rem; padding-top: 0.9rem;
    border-top: 1px dashed var(--cream-darker);
}
.kd-params:empty { display: none; }
.kd-params .kd-field { flex: 0 1 auto; }
.kd-params input[type="text"], .kd-params select { min-width: 9rem; }
.kd-params input[type="number"] { width: 6rem; }
.kd-params textarea { min-width: 22rem; min-height: 4.5rem; }
.kd-params .kd-check { flex-direction: row; align-items: center; gap: 0.45rem; }
.kd-params .kd-check label { text-transform: none; letter-spacing: 0; font-size: 0.8rem; font-weight: 400; color: var(--ink-light); }

.kd-slider-row { display: flex; align-items: center; gap: 0.5rem; }
.kd-slider-row input[type="range"] { width: 8rem; }

.kd-matrix { display: grid; gap: 0.3rem; }
.kd-matrix input { width: 3.2rem; text-align: center; padding: 0.35rem; }

.kd-alpha-state { font-size: 0.72rem; color: var(--ink-muted); }
.kd-alpha-state.kd-bad { color: var(--color-error); }

.kd-note {
    flex-basis: 100%; font-size: 0.78rem; color: var(--ink-muted);
    line-height: 1.5; margin: 0;
}

/* ── IO panes ────────────────────────────────────────────────────────── */

.kd-io { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.25rem; }
@media (max-width: 820px) { .kd-io { grid-template-columns: 1fr; } }

.kd-pane {
    display: flex; flex-direction: column;
    border: 1px solid var(--cream-darker); border-radius: 6px; overflow: hidden;
}
.kd-pane-head {
    display: flex; justify-content: space-between; align-items: center; gap: 0.5rem;
    padding: 0.5rem 0.75rem; background: var(--cream-dark);
    border-bottom: 1px solid var(--cream-darker);
}
.kd-pane-head h2, .kd-pane-head h3 {
    margin: 0; font-family: var(--font-mono); font-size: 0.72rem;
    letter-spacing: 0.09em; text-transform: uppercase; color: var(--ink-muted);
}
.kd-pane-actions { display: flex; gap: 0.3rem; flex-wrap: wrap; }
.kd-pane-actions button { min-height: 32px; padding: 0.25rem 0.6rem; font-size: 0.72rem; }

.kd-pane textarea, .kd-out {
    border: 0; border-radius: 0; min-height: 15rem; resize: vertical;
    font-family: var(--font-mono); font-size: 0.85rem; line-height: 1.6;
    padding: 0.85rem; background: var(--cream); color: var(--ink);
}
.kd-out {
    margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; overflow: auto;
    max-height: 34rem;
}
.kd-out:focus-visible, .kd-pane textarea:focus-visible { outline: 2px solid var(--red); outline-offset: -2px; }

.kd-counter { font-size: 0.7rem; color: var(--ink-muted); font-variant-numeric: tabular-nums; }

.kd-error {
    margin: 0; padding: 0.7rem 0.85rem; font-size: 0.82rem;
    background: var(--color-error-bg); color: var(--color-error);
    border-top: 1px solid var(--cream-darker);
}
.kd-busy { font-size: 0.72rem; color: var(--red); }

/* ── Glyph rendering ─────────────────────────────────────────────────── */

.kd-glyph { width: 1.7em; height: 1.7em; vertical-align: -0.45em; color: var(--ink); }
.kd-out--glyphs { display: flex; flex-wrap: wrap; gap: 0.35rem 0.3rem; align-content: flex-start; }
.kd-out--glyphs .kd-glyph { width: 2.4rem; height: 2.4rem; }
.kd-out--glyphs .kd-gap { flex-basis: 100%; height: 0; }

.kd-pad { margin-top: 1rem; border: 1px solid var(--cream-darker); border-radius: 6px; }
.kd-pad > summary {
    padding: 0.6rem 0.85rem; cursor: pointer; font-size: 0.78rem;
    font-weight: 600; color: var(--ink-light); list-style: none;
}
.kd-pad > summary::-webkit-details-marker { display: none; }
.kd-pad > summary::before { content: '▸ '; color: var(--red); }
.kd-pad[open] > summary::before { content: '▾ '; }
.kd-pad-body { padding: 0 0.85rem 0.85rem; }
.kd-pad-keys { display: flex; flex-wrap: wrap; gap: 0.3rem; }
.kd-key {
    display: flex; flex-direction: column; align-items: center; gap: 0.1rem;
    min-height: 0; width: 3.3rem; padding: 0.3rem 0.2rem;
    background: var(--cream); border: 1px solid var(--cream-darker); border-radius: 4px;
}
.kd-key:hover { border-color: var(--red); }
.kd-key .kd-glyph { width: 1.9rem; height: 1.9rem; }
.kd-key span { font-size: 0.66rem; color: var(--ink-muted); }
.kd-pad-caveat {
    margin: 0.7rem 0 0; padding: 0.6rem 0.75rem; font-size: 0.78rem; line-height: 1.5;
    background: var(--color-warning-bg); border-left: 3px solid var(--color-warning);
    color: var(--ink-light);
}

/* ── Brute-force / candidate tables ──────────────────────────────────── */

.kd-cands { margin-top: 1.25rem; border: 1px solid var(--cream-darker); border-radius: 6px; overflow: hidden; }
.kd-cands h2 {
    margin: 0; padding: 0.6rem 0.85rem; background: var(--cream-dark);
    border-bottom: 1px solid var(--cream-darker);
    font-family: var(--font-mono); font-size: 0.72rem;
    letter-spacing: 0.09em; text-transform: uppercase; color: var(--ink-muted);
}
.kd-cand-list { margin: 0; padding: 0; list-style: none; }
.kd-cand {
    display: grid; grid-template-columns: minmax(9rem, auto) 1fr auto;
    gap: 0.75rem; align-items: center; width: 100%; text-align: left;
    padding: 0.55rem 0.85rem; background: none; border: 0; border-radius: 0;
    border-bottom: 1px solid var(--cream-dark); min-height: 0;
}
.kd-cand:hover { background: var(--red-dim); color: inherit; }
.kd-cand-chain { font-size: 0.76rem; font-weight: 600; color: var(--red); }
.kd-cand-prev {
    font-size: 0.78rem; color: var(--ink-light);
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.kd-cand-score { font-size: 0.7rem; color: var(--ink-muted); font-variant-numeric: tabular-nums; }
@media (max-width: 640px) { .kd-cand { grid-template-columns: 1fr; } }

/* ── Triage panel ────────────────────────────────────────────────────── */

.kd-triage { margin-top: 1.25rem; border: 1px solid var(--red); border-radius: 6px; overflow: hidden; }
.kd-triage-head { padding: 0.6rem 0.85rem; background: var(--red-dim); border-bottom: 1px solid var(--cream-darker); }
.kd-triage-head h2 {
    margin: 0 0 0.5rem; font-family: var(--font-mono); font-size: 0.72rem;
    letter-spacing: 0.09em; text-transform: uppercase; color: var(--red);
}
.kd-chips { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.kd-chip {
    display: inline-flex; align-items: center; gap: 0.3rem;
    padding: 0.15rem 0.5rem; border-radius: 999px;
    background: var(--cream); border: 1px solid var(--cream-darker);
    font-size: 0.72rem; color: var(--ink-light);
}
.kd-chip--warn { border-color: var(--color-warning); color: var(--color-warning); }

.kd-items { margin: 0; padding: 0; list-style: none; }
.kd-item {
    display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center;
    padding: 0.5rem 0.85rem; border-bottom: 1px solid var(--cream-dark);
}
.kd-item:last-child { border-bottom: 0; }
.kd-item-type {
    flex: 0 0 auto; min-width: 7rem; font-size: 0.7rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-muted);
}
.kd-item-val {
    flex: 1 1 16rem; font-family: var(--font-mono); font-size: 0.82rem;
    overflow-wrap: anywhere; color: var(--ink);
}
.kd-item-note { flex-basis: 100%; font-size: 0.72rem; color: var(--ink-muted); }
.kd-item-actions { display: flex; gap: 0.25rem; flex-wrap: wrap; }
.kd-item-actions button, .kd-item-actions a {
    min-height: 30px; padding: 0.2rem 0.55rem; font-size: 0.7rem;
}
.kd-badge {
    padding: 0.1rem 0.4rem; border-radius: 3px; font-size: 0.65rem;
    font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em;
}
.kd-badge--caution { background: var(--color-warning-bg); color: var(--color-warning); border: 1px solid var(--color-warning); }
.kd-badge--noopen { background: var(--color-error-bg); color: var(--color-error); border: 1px solid var(--color-error); }
.kd-badge--masked { background: var(--cream-dark); color: var(--ink-muted); border: 1px solid var(--cream-darker); }

.kd-confirm {
    margin: 0.4rem 0 0; flex-basis: 100%; padding: 0.55rem 0.7rem;
    background: var(--color-warning-bg); border: 1px solid var(--color-warning);
    border-radius: 4px; font-size: 0.76rem; color: var(--ink);
    display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center;
}

/* ── Frequency panel ─────────────────────────────────────────────────── */

.kd-freq { margin-top: 1.25rem; }
.kd-freq-bars { display: flex; align-items: flex-end; gap: 2px; height: 5rem; margin-top: 0.5rem; }
.kd-freq-bar { flex: 1; background: var(--red); opacity: 0.65; min-height: 1px; border-radius: 2px 2px 0 0; }
.kd-freq-labels { display: flex; gap: 2px; margin-top: 0.2rem; }
.kd-freq-labels span { flex: 1; text-align: center; font-size: 0.6rem; color: var(--ink-muted); }
.kd-stats { display: flex; flex-wrap: wrap; gap: 1.2rem; margin-top: 0.6rem; font-size: 0.78rem; color: var(--ink-light); }
.kd-stats b { color: var(--red); font-variant-numeric: tabular-nums; }

/* ── Misc ────────────────────────────────────────────────────────────── */

.kd-lang { display: inline-flex; gap: 0.25rem; }
.kd-lang button { min-height: 32px; padding: 0.2rem 0.6rem; font-size: 0.72rem; }
.kd-lang button[aria-pressed="true"] { background: var(--red); color: var(--cream); border-color: var(--red); }

.kd-topbar {
    display: flex; justify-content: space-between; align-items: stretch;
    gap: 1rem; flex-wrap: wrap; margin-bottom: 1.25rem;
}
.kd-topbar .kd-trust { flex: 1 1 24rem; margin-bottom: 0; }
.kd-topbar .kd-lang { align-items: center; }

.kd-jp { font-family: 'Noto Sans JP', var(--font-display), sans-serif; }

.kd-sr {
    position: absolute; width: 1px; height: 1px;
    overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

.kd-soon { opacity: 0.75; }

@media (prefers-reduced-motion: reduce) {
    .kd-cand, .kd-key, .kd-chip { transition: none !important; }
}