/**
 * Morse Code Decoder Stylesheet — Cyber Kendra Theme
 * Dedicated styles for Morse Code Live Encoder / Decoder:
 *  - Mode Switcher Bar (Text -> Morse / Morse -> Text)
 *  - 2-Column Split Dashboard (Parallel Stretch Height)
 *  - Web Audio Player Controls & Signal Flasher Light Indicator
 *  - Quick Touch Keypad & A-Z / 0-9 Reference Cheat Sheet Grid
 *
 * CSS Variables from Theme Core:
 *  - Colors: var(--clr-primary), var(--clr-bg), var(--clr-surface), var(--clr-surface-alt), var(--clr-text), var(--clr-text-muted), var(--clr-border)
 *  - Fonts:  var(--font-display), var(--font-ui), var(--font-mono)
 */

/* ── Section Container ────────────────────────────────────────────────────── */
.ck-morse-section {
    padding-bottom: var(--sp-12, 32px);
}

/* ═══════════════════════════════════════════════════════════════════════════
   MODE SWITCHER HEADER BAR
   ═══════════════════════════════════════════════════════════════════════════ */
.ck-morse-mode-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-4, 16px);
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--md, 10px);
    padding: var(--sp-3, 10px) var(--sp-4, 16px);
    margin-bottom: var(--sp-6, 24px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.02);
    flex-wrap: wrap;
}

.ck-morse-tabs {
    display: flex;
    align-items: center;
    gap: var(--sp-2, 8px);
    background: var(--clr-surface-alt);
    padding: 4px;
    border-radius: var(--sm, 6px);
    border: 1px solid var(--clr-border);
}

.ck-morse-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    font-family: var(--font-ui);
    font-size: 0.86rem;
    font-weight: 600;
    color: var(--clr-text-muted);
    background: transparent;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.ck-morse-tab:hover {
    color: var(--clr-text);
}

.ck-morse-tab--active {
    background: var(--clr-primary);
    color: #ffffff !important;
    box-shadow: 0 2px 8px color-mix(in srgb, var(--clr-primary) 30%, transparent);
}

.ck-morse-btn-swap {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 38px;
    padding: 0 16px;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--clr-primary);
    background: color-mix(in srgb, var(--clr-primary) 8%, var(--clr-surface));
    border: 1px solid color-mix(in srgb, var(--clr-primary) 30%, transparent);
    border-radius: var(--sm, 6px);
    cursor: pointer;
    transition: all 0.2s ease;
}

.ck-morse-btn-swap:hover {
    background: var(--clr-primary);
    color: #ffffff;
    border-color: var(--clr-primary);
}

/* ═══════════════════════════════════════════════════════════════════════════
   2-COLUMN SPLIT DASHBOARD LAYOUT (PARALLEL HEIGHTS)
   ═══════════════════════════════════════════════════════════════════════════ */
.ck-morse-dashboard {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-6, 24px);
    align-items: stretch; /* Parallel equal height stretch */
}

.ck-morse-column {
    display: flex;
    flex-direction: column;
}

.ck-morse-column--input,
.ck-morse-column--output {
    height: 100%;
}

/* ── Card Containers ──────────────────────────────────────────────────────── */
.ck-morse-card {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--md, 10px);
    padding: var(--sp-5, 20px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: border-color 0.2s ease;
}

.ck-morse-card:hover {
    border-color: color-mix(in srgb, var(--clr-primary) 40%, var(--clr-border));
}

.ck-morse-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: var(--sp-3, 12px);
    margin-bottom: var(--sp-4, 16px);
    border-bottom: 1px solid var(--clr-border);
}

.ck-morse-card__title-wrap {
    display: flex;
    align-items: center;
    gap: var(--sp-2, 8px);
}

.ck-morse-card__icon {
    font-size: 1.35rem;
    color: var(--clr-primary);
}

.ck-morse-card__icon--output {
    color: #10b981;
}

.ck-morse-card__title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--clr-text);
    margin: 0;
}

.ck-morse-badge {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--clr-primary);
    background: color-mix(in srgb, var(--clr-primary) 12%, transparent);
    padding: 3px 10px;
    border-radius: 20px;
    border: 1px solid color-mix(in srgb, var(--clr-primary) 25%, transparent);
}

/* ── ACTION BUTTONS BAR (TOP) ────────────────────────────────────────────── */
.ck-morse-actions-bar {
    display: flex;
    align-items: center;
    gap: var(--sp-3, 12px);
    flex-wrap: wrap;
    margin-bottom: var(--sp-4, 14px);
}

.ck-morse-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 38px;
    padding: 0 14px;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--sm, 6px);
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.ck-morse-btn--secondary {
    background: var(--clr-primary);
    color: #ffffff;
}

.ck-morse-btn--secondary:hover {
    filter: brightness(1.1);
    box-shadow: 0 4px 12px color-mix(in srgb, var(--clr-primary) 30%, transparent);
}

.ck-morse-btn--outline {
    background: transparent;
    color: var(--clr-text-muted);
    border-color: var(--clr-border);
}

.ck-morse-btn--outline:hover {
    background: var(--clr-surface-alt);
    color: #ef4444;
    border-color: color-mix(in srgb, #ef4444 40%, transparent);
}

.ck-morse-btn--audio {
    background: #10b981;
    color: #ffffff;
}

.ck-morse-btn--audio:hover {
    background: #059669;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.ck-morse-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 6px;
    background: var(--clr-surface-alt);
    border: 1px solid var(--clr-border);
    color: var(--clr-text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
}

.ck-morse-icon-btn:hover {
    background: var(--clr-primary);
    color: #ffffff;
    border-color: var(--clr-primary);
}

.ck-morse-icon-btn.copied {
    background: #10b981;
    color: #ffffff;
    border-color: #10b981;
}

/* ── MORSE QUICK KEYPAD ──────────────────────────────────────────────────── */
.ck-morse-keypad {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: var(--sp-2, 8px) var(--sp-3, 12px);
    background: var(--clr-surface-alt);
    border: 1px solid var(--clr-border);
    border-radius: var(--sm, 6px);
    margin-bottom: var(--sp-4, 14px);
    flex-wrap: wrap;
}

.ck-morse-keypad__label {
    font-family: var(--font-ui);
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--clr-text-muted);
    margin-right: 4px;
}

.ck-morse-key-btn {
    padding: 6px 12px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--clr-text);
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.ck-morse-key-btn:hover {
    background: var(--clr-primary);
    color: #ffffff;
    border-color: var(--clr-primary);
}

/* ── AUDIO PLAYER BAR & SIGNAL FLASHER ───────────────────────────────────── */
.ck-morse-audio-player {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-3, 12px);
    padding: var(--sp-3, 10px) var(--sp-4, 14px);
    background: var(--clr-surface-alt);
    border: 1px solid var(--clr-border);
    border-radius: var(--sm, 6px);
    margin-bottom: var(--sp-4, 14px);
}

.ck-morse-flasher {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--clr-text-muted);
}

.ck-morse-flasher__dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #64748b;
    transition: background 0.1s ease, box-shadow 0.1s ease;
}

.ck-morse-flasher--on .ck-morse-flasher__dot {
    background: #10b981;
    box-shadow: 0 0 12px #10b981, 0 0 24px #10b981;
}

.ck-morse-flasher--on .ck-morse-flasher__label {
    color: #10b981;
    font-weight: 700;
}

@keyframes ckVoicePulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 10px #10b981;
    }
    50% {
        transform: scale(1.35);
        box-shadow: 0 0 16px #10b981, 0 0 26px rgba(16, 185, 129, 0.45);
    }
}

.ck-morse-flasher--speaking .ck-morse-flasher__dot {
    animation: ckVoicePulse 1.2s infinite ease-in-out;
}

/* ── TEXTAREA BOXES (PARALLEL STRETCH) ──────────────────────────────────── */
.ck-morse-input-wrap,
.ck-morse-output-wrap {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.ck-morse-textarea {
    width: 100%;
    flex: 1;
    min-height: 240px;
    padding: var(--sp-4, 16px);
    font-family: var(--font-mono);
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--clr-text);
    background: var(--clr-surface-alt);
    border: 1px solid var(--clr-border);
    border-radius: var(--sm, 6px);
    resize: vertical;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    box-sizing: border-box;
    word-break: break-all;
}

.ck-morse-textarea:focus {
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--clr-primary) 20%, transparent);
}

.ck-morse-textarea--output {
    background: #0f172a;
    color: #38bdf8;
    border-color: #1e293b;
    letter-spacing: 1px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   MORSE CHEAT SHEET REFERENCE TABLE
   ═══════════════════════════════════════════════════════════════════════════ */
.ck-morse-cheatsheet-card {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--md, 10px);
    padding: var(--sp-6, 24px);
    margin-top: var(--sp-6, 24px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
}

.ck-morse-cheatsheet__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: var(--sp-3, 12px);
    margin-bottom: var(--sp-5, 20px);
    border-bottom: 1px solid var(--clr-border);
}

.ck-morse-cheatsheet__title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--clr-text);
    margin: 0;
}

.ck-morse-table-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: var(--sp-3, 10px);
}

.ck-morse-grid-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--sp-3, 10px);
    background: var(--clr-surface-alt);
    border: 1px solid var(--clr-border);
    border-radius: var(--sm, 6px);
    transition: all 0.15s ease;
}

.ck-morse-grid-item:hover {
    border-color: var(--clr-primary);
    background: color-mix(in srgb, var(--clr-primary) 8%, var(--clr-surface));
    transform: translateY(-2px);
}

.ck-morse-grid-char {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--clr-text);
}

.ck-morse-grid-code {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--clr-primary);
    margin-top: 2px;
}

/* ── Editor Content Area ─────────────────────────────────────────────────── */
.ck-morse-editor-content {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--md, 8px);
    padding: var(--sp-8, 32px);
    margin-top: var(--sp-8, 32px);
    color: var(--clr-text);
    line-height: 1.7;
}

/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVE MEDIA QUERIES (MORSE CODE DECODER)
   ═══════════════════════════════════════════════════════════════════════════ */

/* Large Laptops & Standard Desktops (992px to 1200px) */
@media (max-width: 1200px) {
    .ck-morse-dashboard {
        gap: var(--sp-5, 20px);
    }

    .ck-morse-textarea {
        min-height: 220px;
    }
}

/* Tablets (768px to 991px) */
@media (max-width: 991px) {
    .ck-morse-dashboard {
        grid-template-columns: 1fr;
    }

    .ck-morse-column--input,
    .ck-morse-column--output {
        height: auto;
    }

    .ck-morse-card {
        height: auto;
    }

    .ck-morse-textarea {
        min-height: 200px;
    }
}

/* Small Tablets & Mobile Landscape (576px to 767px) */
@media (max-width: 767px) {
    .ck-morse-mode-bar {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .ck-morse-tabs {
        width: 100%;
    }

    .ck-morse-tab {
        flex: 1;
        justify-content: center;
    }

    .ck-morse-btn-swap {
        width: 100%;
        justify-content: center;
    }

    .ck-morse-card {
        padding: var(--sp-4, 16px);
    }

    .ck-morse-actions-bar {
        gap: 10px;
    }

    .ck-morse-btn {
        flex: 1 1 auto;
        min-width: 120px;
    }

    .ck-morse-audio-player {
        flex-wrap: wrap;
    }

    .ck-morse-table-container {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }
}

/* Mobile Portrait (< 576px) */
@media (max-width: 575px) {
    .ck-morse-card__header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .ck-morse-badge {
        align-self: flex-start;
    }

    .ck-morse-actions-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .ck-morse-btn {
        width: 100%;
    }

    .ck-morse-keypad {
        flex-direction: column;
        align-items: stretch;
    }

    .ck-morse-keypad__label {
        margin-bottom: 4px;
    }

    .ck-morse-key-btn {
        width: 100%;
        text-align: center;
    }

    .ck-morse-audio-player {
        flex-direction: column;
        align-items: stretch;
    }

    .ck-morse-flasher {
        justify-content: center;
    }

    .ck-morse-textarea {
        font-size: 0.88rem;
        min-height: 180px;
        padding: 12px;
    }

    .ck-morse-cheatsheet-card {
        padding: 16px;
    }

    .ck-morse-cheatsheet__header {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }

    .ck-morse-table-container {
        grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
        gap: 8px;
    }
}