/* =============================================
   TOOLBOX AUDIO — CSS
   Thème : Clair / Studio professionnel
   Polices : Orbitron (titres), Rajdhani (UI), Share Tech Mono (valeurs)
   ============================================= */

:root {
    --bg-dark:     #f0f4f8;
    --bg-panel:    #ffffff;
    --bg-card:     #ffffff;
    --bg-card2:    #f7fafd;
    --border:      #d0dae6;
    --border-glow: #b0c4d8;

    --accent:      #0077cc;
    --accent2:     #e05a00;
    --accent3:     #1a9e3f;
    --accent-dim:  rgba(0, 119, 204, 0.10);

    --text-primary:   #1a2535;
    --text-secondary: #4a5f78;
    --text-muted:     #8fa3b8;
    --text-bright:    #0a1520;

    --font-display: 'Orbitron', monospace;
    --font-ui:      'Rajdhani', sans-serif;
    --font-mono:    'Share Tech Mono', monospace;

    --radius:   4px;
    --radius-lg: 8px;
    --trans:    0.18s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    height: 100%;
    background: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-ui);
    font-size: 14px;
    line-height: 1.5;
    overflow-x: hidden;
}

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--border-glow); border-radius: 3px; }

/* ===================== HEADER ===================== */
.tb-header {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 0 24px;
    height: 56px;
    background: var(--bg-panel);
    border-bottom: 2px solid var(--border);
    position: sticky; top: 0; z-index: 100;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.tb-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}
.logo-icon {
    font-size: 22px;
    color: var(--accent);
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}
.logo-text {
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 900;
    letter-spacing: 0.15em;
    color: var(--text-bright);
}
.logo-text em {
    font-style: normal;
    color: var(--accent);
    font-weight: 400;
}
.logo-ver {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    align-self: flex-end;
    margin-bottom: 2px;
}

.tb-nav {
    display: flex;
    gap: 4px;
    flex: 1;
}
.nav-btn {
    font-family: var(--font-display);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: 6px 14px;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--trans);
}
.nav-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
}
.nav-btn.active {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 0 2px rgba(0,119,204,0.15);
}

.tb-status {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}
.status-dot {
    width: 8px; height: 8px;
    background: var(--accent3);
    border-radius: 50%;
    animation: blink 1.5s infinite;
    box-shadow: 0 0 6px rgba(26,158,63,0.4);
}
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}
.status-label {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
    letter-spacing: 0.08em;
    min-width: 160px;
}

/* ===================== MAIN / PANELS ===================== */
.tb-main {
    padding: 24px;
    min-height: calc(100vh - 100px);
}

.tool-panel {
    display: none;
    animation: fadeIn 0.25s ease;
}
.tool-panel.active { display: block; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.panel-header {
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}
.panel-header h2 {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 700;
    color: var(--text-bright);
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
    gap: 12px;
}
.panel-num {
    font-size: 13px;
    color: var(--accent);
    font-weight: 400;
}
.panel-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
    margin-left: 34px;
}

/* ===================== CARDS ===================== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px;
    position: relative;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent) 0%, transparent 60%);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    opacity: 0.6;
}
.card-title {
    font-family: var(--font-display);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: 14px;
    text-transform: uppercase;
}

/* ===================== GRIDS ===================== */
.analyser-grid, .eq-grid, .conv-grid, .metro-grid, .tuner-grid {
    display: grid;
    gap: 16px;
}
.analyser-grid { grid-template-columns: 1fr 1fr; }
.eq-grid       { grid-template-columns: 1fr 1fr; }
.conv-grid     { grid-template-columns: 1fr 1fr 1fr; }
.metro-grid    { grid-template-columns: 1fr 1fr 1fr 1fr; }
.tuner-grid    { grid-template-columns: 1fr 1fr; }

.span-full { grid-column: 1 / -1; }

/* ===================== FORM CONTROLS ===================== */
.field-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}
.tb-label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 600;
    letter-spacing: 0.04em;
    min-width: 140px;
}
.tb-input {
    background: var(--bg-card2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 13px;
    padding: 5px 10px;
    transition: border-color var(--trans);
    outline: none;
}
.tb-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,119,204,0.12); }

.tb-select {
    background: var(--bg-card2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: var(--font-ui);
    font-size: 13px;
    padding: 5px 10px;
    cursor: pointer;
    outline: none;
    transition: border-color var(--trans);
}
.tb-select:focus { border-color: var(--accent); }

.tb-file {
    font-family: var(--font-ui);
    font-size: 12px;
    color: var(--text-secondary);
}
.tb-file::-webkit-file-upload-button {
    background: var(--bg-card2);
    border: 1px solid var(--border);
    color: var(--accent);
    padding: 4px 10px;
    border-radius: var(--radius);
    cursor: pointer;
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: 0.1em;
    margin-right: 8px;
    transition: background var(--trans);
}
.tb-file::-webkit-file-upload-button:hover { background: var(--accent-dim); }

.tb-check input[type="checkbox"],
.tb-check { cursor: pointer; font-size: 13px; color: var(--text-primary); }

.tb-radio-list { display: flex; gap: 12px; }
.tb-radio-list td label { font-size: 13px; color: var(--text-primary); cursor: pointer; }

.tb-range {
    -webkit-appearance: none;
    width: 100%;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    outline: none;
}
.tb-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px; height: 14px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 1px 4px rgba(0,119,204,0.4);
}

.unit-label { font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); }

/* ===================== BUTTONS ===================== */
.tb-btn {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
    padding: 7px 16px;
    border-radius: var(--radius);
    border: 1px solid;
    cursor: pointer;
    transition: all var(--trans);
    text-transform: uppercase;
    white-space: nowrap;
}
.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #ffffff;
}
.btn-primary:hover {
    background: #005fa3;
    border-color: #005fa3;
    box-shadow: 0 4px 12px rgba(0,119,204,0.3);
}
.btn-secondary {
    background: var(--bg-card2);
    border-color: var(--border);
    color: var(--text-primary);
}
.btn-secondary:hover { border-color: var(--accent2); color: var(--accent2); }
.btn-preset {
    background: var(--bg-card2);
    border-color: var(--border);
    color: var(--text-secondary);
    padding: 5px 10px;
    font-size: 10px;
}
.btn-preset:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }
.btn-sm { padding: 5px 10px; font-size: 11px; }
.btn-large { padding: 10px 24px; font-size: 12px; }

.preset-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

/* ===================== CANVAS ===================== */
canvas {
    display: block;
    width: 100%;
    border-radius: var(--radius);
    background: #f7fafd;
    border: 1px solid var(--border);
}

.spectrum-info {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 4px;
}

.live-val {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent3);
    margin-left: 8px;
}

/* ===================== RESULTS ===================== */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
}
.result-item {
    background: var(--bg-card2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px 14px;
}
.result-label {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    margin-bottom: 4px;
}
.result-value {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 600;
}
.result-value.highlight { color: var(--accent); }
.result-msg {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--accent3);
}

/* ===================== ÉGALISEUR BANDES ===================== */
.eq-bands {
    display: flex;
    gap: 12px;
    justify-content: space-around;
    align-items: flex-end;
    padding: 12px 8px;
    background: var(--bg-card2);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}
.eq-band {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    flex: 1;
}
.band-freq {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    text-align: center;
}
.band-slider-wrap {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.band-slider {
    -webkit-appearance: slider-vertical;
    writing-mode: vertical-lr;
    direction: rtl;
    width: 4px;
    height: 110px;
    cursor: pointer;
    accent-color: var(--accent);
    background: var(--border);
    border-radius: 2px;
    outline: none;
}
.band-val {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--accent);
    text-align: center;
    min-width: 40px;
}

/* ===================== PROGRESS BAR ===================== */
.progress-bar-wrap { margin-bottom: 10px; }
.progress-bar {
    position: relative;
    height: 22px;
    background: var(--bg-card2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent2), var(--accent));
    transition: width 0.3s ease;
    border-radius: var(--radius);
}
.progress-label {
    position: absolute;
    right: 10px; top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-bright);
}

/* ===================== MÉTRONOME ===================== */
.card-metro-main { grid-column: span 2; }

.metro-display {
    text-align: center;
    padding: 20px 0 10px;
    position: relative;
    overflow: hidden;
}
.metro-bpm-display {
    font-family: var(--font-display);
    font-size: 72px;
    font-weight: 900;
    color: var(--accent);
    line-height: 1;
    transition: transform 0.1s;
}
.metro-bpm-display.beat-flash {
    color: var(--accent3);
}
.metro-unit {
    font-family: var(--font-display);
    font-size: 12px;
    letter-spacing: 0.3em;
    color: var(--text-muted);
    margin-bottom: 16px;
}

/* Pendule */
.metro-pendulum {
    width: 80px; height: 80px;
    margin: 0 auto 10px;
    position: relative;
}
.pendulum-arm {
    width: 3px;
    height: 70px;
    background: linear-gradient(180deg, var(--border), var(--accent));
    margin: 0 auto;
    transform-origin: top center;
    border-radius: 2px;
    animation: none;
    transition: transform 0.02s;
}
.pendulum-arm.swinging {
    animation: swing var(--swing-dur, 0.5s) ease-in-out infinite alternate;
}
@keyframes swing {
    from { transform: rotate(-35deg); }
    to   { transform: rotate( 35deg); }
}
.pendulum-bob {
    width: 16px; height: 16px;
    background: var(--accent);
    border-radius: 50%;
    margin: 0 auto;
    box-shadow: 0 2px 8px rgba(0,119,204,0.4);
    position: relative;
    left: -6px;
    top: -4px;
}

.metro-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 12px;
}
.bpm-input {
    font-family: var(--font-display);
    font-size: 16px;
    text-align: center;
    font-weight: 700;
    color: var(--accent);
}
.metro-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.beat-indicators {
    display: flex;
    gap: 6px;
    justify-content: center;
    margin-top: 12px;
}
.beat-dot {
    width: 28px; height: 28px;
    border-radius: 50%;
    border: 2px solid var(--border);
    background: var(--bg-card2);
    transition: all 0.05s;
}
.beat-dot.active { background: var(--accent); border-color: var(--accent); box-shadow: 0 2px 8px rgba(0,119,204,0.4); }
.beat-dot.accent { border-color: var(--accent2); }
.beat-dot.accent.active { background: var(--accent2); box-shadow: 0 2px 8px rgba(224,90,0,0.4); }

.tempo-table { font-size: 13px; }
.tempo-row {
    display: flex;
    justify-content: space-between;
    padding: 5px 0;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
}
.tempo-row:last-child { border-bottom: none; }
.tempo-row.highlight-row { color: var(--accent); font-weight: 600; }

/* ===================== ACCORDEUR ===================== */
.card-tuner-main { grid-column: 1; }

.tuner-display {
    text-align: center;
    padding: 12px 0;
}
.tuner-note {
    font-family: var(--font-display);
    font-size: 60px;
    font-weight: 900;
    color: var(--text-bright);
    line-height: 1;
    margin-top: 8px;
}
.tuner-cents {
    font-family: var(--font-mono);
    font-size: 18px;
    color: var(--text-secondary);
    margin: 4px 0;
}
.tuner-cents.sharp { color: var(--accent2); }
.tuner-cents.flat  { color: #2255cc; }
.tuner-cents.in-tune { color: var(--accent3); }
.tuner-freq {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-muted);
}
.tuner-actions { text-align: center; margin-top: 12px; }

.notes-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 6px;
}
.note-btn {
    background: var(--bg-card2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 8px 4px;
    text-align: center;
    cursor: pointer;
    transition: all var(--trans);
}
.note-btn:hover { border-color: var(--accent); background: var(--accent-dim); }
.note-btn.active { background: var(--accent-dim); border-color: var(--accent); }
.note-name {
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 700;
    color: var(--text-bright);
    display: block;
}
.note-hz {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--text-muted);
    display: block;
}

/* ===================== FOOTER ===================== */
.tb-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 24px;
    background: var(--bg-panel);
    border-top: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    box-shadow: 0 -2px 8px rgba(0,0,0,0.05);
}
.footer-time {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--accent);
}

/* ===================== CHECKBOX ===================== */
.checkbox-row { align-items: center; }
.tb-check { display: flex; align-items: center; gap: 8px; cursor: pointer; }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 1100px) {
    .metro-grid { grid-template-columns: 1fr 1fr; }
    .card-metro-main { grid-column: span 2; }
}
@media (max-width: 860px) {
    .analyser-grid, .conv-grid, .eq-grid, .tuner-grid { grid-template-columns: 1fr; }
    .metro-grid { grid-template-columns: 1fr; }
    .card-metro-main { grid-column: 1; }
    .tb-nav { flex-wrap: wrap; }
    .notes-grid { grid-template-columns: repeat(6, 1fr); }
}