/*
 * StarshipOS — Signal Decoding Puzzle Styles (CC_064 P3)
 * Dark comms-intercept theme, extends puzzle-base.css variables.
 */

/* ── Container ─────────────────────────────────────────────────────────── */
.signal-puzzle-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
    color: var(--puzzle-text);
    background: var(--puzzle-bg);
    font-family: 'Courier New', Courier, monospace;
}

/* ── Header ─────────────────────────────────────────────────────────────── */
.signal-puzzle-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid var(--puzzle-border);
    border-radius: var(--puzzle-radius);
}

.signal-puzzle-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--puzzle-accent);
    text-shadow: 0 0 8px rgba(0, 212, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.signal-cipher-badge {
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.signal-cipher--caesar   { background: #0f3460; color: #00d4ff; }
.signal-cipher--substitution { background: #2d1b3d; color: #c084fc; }

/* ── Intel Header ───────────────────────────────────────────────────────── */
.signal-intel-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
}

.signal-intel-label  { color: var(--puzzle-text-muted); text-transform: uppercase; }
.signal-intel-category { color: var(--puzzle-warning); font-weight: 700; letter-spacing: 0.05em; }

/* ── Section Label ──────────────────────────────────────────────────────── */
.signal-section-label {
    margin: 0 0 0.4rem;
    font-size: 0.75rem;
    color: var(--puzzle-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ── Encrypted Message Display ──────────────────────────────────────────── */
.signal-message-section { display: flex; flex-direction: column; }

.signal-encrypted-display {
    padding: 0.75rem 1rem;
    background: #0a0f1a;
    border: 2px solid var(--puzzle-border);
    border-radius: var(--puzzle-radius);
    color: #f59e0b;
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    word-break: break-all;
    text-shadow: 0 0 6px rgba(245, 158, 11, 0.4);
}

/* ── Hint Box ───────────────────────────────────────────────────────────── */
.signal-hint-box {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.75rem;
    background: rgba(255, 107, 53, 0.08);
    border: 1px solid var(--puzzle-warning);
    border-radius: var(--puzzle-radius);
    font-size: 0.8rem;
}

.signal-hint-label { color: var(--puzzle-warning); font-weight: 700; }
.signal-hint-text  { color: var(--puzzle-text); }

/* ── Known Letters ──────────────────────────────────────────────────────── */
.signal-known-letters { display: flex; flex-direction: column; }

.signal-known-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.signal-known-pair {
    display: flex;
    align-items: center;
    gap: 0.2rem;
    padding: 0.2rem 0.5rem;
    background: rgba(46, 204, 113, 0.1);
    border: 1px solid rgba(46, 204, 113, 0.3);
    border-radius: 3px;
    font-size: 0.85rem;
}

.signal-known-cipher { color: #f59e0b; font-weight: 700; }
.signal-known-arrow  { color: var(--puzzle-text-muted); }
.signal-known-plain  { color: var(--puzzle-success); font-weight: 700; }

.signal-known-pair--revealed {
    background: rgba(46, 204, 113, 0.15);
    border-color: rgba(46, 204, 113, 0.5);
}

/* ── Slider ─────────────────────────────────────────────────────────────── */
.signal-slider-section { display: flex; flex-direction: column; }

.signal-slider-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.signal-range-slider {
    flex: 1;
    accent-color: var(--puzzle-accent);
    cursor: pointer;
}

.signal-shift-value {
    min-width: 2.5rem;
    text-align: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--puzzle-accent);
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--puzzle-accent);
    border-radius: 4px;
    padding: 0.1rem 0.3rem;
}

/* ── Preview ────────────────────────────────────────────────────────────── */
.signal-preview-section { display: flex; flex-direction: column; }

.signal-decoded-preview {
    padding: 0.5rem 0.75rem;
    background: rgba(0, 0, 0, 0.4);
    border: 1px dashed rgba(46, 204, 113, 0.4);
    border-radius: var(--puzzle-radius);
    color: var(--puzzle-success);
    font-size: 1rem;
    letter-spacing: 0.12em;
    word-break: break-all;
    min-height: 2.5rem;
}

/* ── Frequency Chart ────────────────────────────────────────────────────── */
.signal-frequency-section { display: flex; flex-direction: column; }

.signal-frequency-chart {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 80px;
    padding: 0.25rem;
    background: #0a0f1a;
    border: 1px solid var(--puzzle-border);
    border-radius: var(--puzzle-radius);
    overflow-x: auto;
}

.signal-freq-bar-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
    flex-shrink: 0;
}

.signal-freq-bar {
    width: 10px;
    background: linear-gradient(180deg, #e63946, #f59e0b);
    border-radius: 2px 2px 0 0;
    min-height: 4px;
    transition: height 0.2s ease;
}

.signal-freq-label {
    font-size: 0.55rem;
    color: var(--puzzle-text-muted);
}

/* ── Substitution Mapping Grid ──────────────────────────────────────────── */
.signal-mapping-section { display: flex; flex-direction: column; }

.signal-mapping-grid {
    display: grid;
    grid-template-columns: repeat(13, 1fr);
    gap: 2px;
    padding: 0.25rem;
    background: #0a0f1a;
    border: 1px solid var(--puzzle-border);
    border-radius: var(--puzzle-radius);
}

.signal-map-cell {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.2rem 0.1rem;
    border: 1px solid var(--puzzle-border);
    border-radius: 2px;
    cursor: pointer;
    transition: background 0.15s;
}

.signal-map-cell:hover { background: rgba(0, 212, 255, 0.1); }

.signal-map-cell--active {
    background: rgba(0, 212, 255, 0.2) !important;
    border-color: var(--puzzle-accent);
}

.signal-map-cell--known {
    background: rgba(46, 204, 113, 0.12);
    border-color: rgba(46, 204, 113, 0.4);
}

.signal-map-cell--assigned {
    background: rgba(0, 212, 255, 0.08);
    border-color: rgba(0, 212, 255, 0.3);
}

.signal-map-cipher {
    font-size: 0.7rem;
    color: #f59e0b;
    font-weight: 700;
}

.signal-map-plain {
    font-size: 0.65rem;
    color: var(--puzzle-success);
    font-weight: 600;
}

/* ── Plain Selector ─────────────────────────────────────────────────────── */
.signal-plain-selector {
    padding: 0.5rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--puzzle-border);
    border-radius: var(--puzzle-radius);
    margin-top: 0.5rem;
}

.signal-plain-grid {
    display: grid;
    grid-template-columns: repeat(13, 1fr);
    gap: 2px;
}

.signal-plain-btn {
    padding: 0.2rem 0;
    background: var(--puzzle-border);
    border: 1px solid transparent;
    border-radius: 2px;
    color: var(--puzzle-text);
    cursor: pointer;
    font-family: 'Courier New', monospace;
    font-size: 0.7rem;
    transition: background 0.1s;
}

.signal-plain-btn:hover {
    background: rgba(0, 212, 255, 0.2);
    border-color: var(--puzzle-accent);
    color: var(--puzzle-accent);
}

/* ── Submit Section ─────────────────────────────────────────────────────── */
.signal-submit-section {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--puzzle-border);
}

.signal-decoded-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: #0a0f1a;
    border: 1px solid var(--puzzle-border);
    border-radius: var(--puzzle-radius);
    color: var(--puzzle-text);
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.95rem;
    letter-spacing: 0.08em;
    box-sizing: border-box;
}

.signal-decoded-input:focus {
    outline: none;
    border-color: var(--puzzle-accent);
    box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.2);
}

.signal-submit-btn {
    padding: 0.6rem 1.5rem;
    background: rgba(0, 212, 255, 0.15);
    border: 1px solid var(--puzzle-accent);
    border-radius: var(--puzzle-radius);
    color: var(--puzzle-accent);
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.2s;
    align-self: flex-end;
}

.signal-submit-btn:hover {
    background: rgba(0, 212, 255, 0.3);
}

/* ── Result Area ────────────────────────────────────────────────────────── */
.signal-result-area { min-height: 0; }