/* ===================================
   ファイル選択エリア
   =================================== */
.file-select-area {
    background: linear-gradient(180deg, #2a2a2a 0%, #1a1a1a 100%);
    border: 2px solid #3a3a3a;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.file-select-label {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 30px;
    background: linear-gradient(180deg, #3a3a3a 0%, #2a2a2a 100%);
    border: 2px solid #4a4a4a;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.file-select-label:hover {
    background: linear-gradient(180deg, #4a4a4a 0%, #3a3a3a 100%);
    border-color: var(--accent-orange);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(255, 107, 0, 0.3);
}

.file-icon {
    font-size: 24px;
}

.file-text {
    font-size: 16px;
    color: #ddd;
    font-weight: 600;
    letter-spacing: 1px;
}

.file-hint {
    font-size: 11px;
    color: #888;
    letter-spacing: 0.5px;
}

.file-info {
    font-size: 13px;
    color: var(--display-text);
    text-shadow: 0 0 4px var(--display-text);
    padding: 8px 16px;
    background: rgba(0, 255, 204, 0.1);
    border: 1px solid rgba(0, 255, 204, 0.3);
    border-radius: 4px;
    min-width: 300px;
    text-align: center;
}

.file-info.loaded {
    color: var(--accent-orange);
    text-shadow: 0 0 4px var(--accent-orange);
    border-color: var(--accent-orange);
    background: rgba(255, 107, 0, 0.1);
}

/* ===================================
   グローバル設定
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* カラーパレット */
    --bg-dark: #0a0a0a;
    --deck-body: #1a1a1a;
    --deck-frame: #2a2a2a;
    --metal-dark: #333333;
    --metal-light: #555555;
    --accent-orange: #ff6b00;
    --accent-red: #ff0000;
    --led-green: #00ff00;
    --led-orange: #ffaa00;
    --led-red: #ff0000;
    --display-bg: #0d1a1a;
    --display-text: #00ffcc;
    --button-inactive: #2a2a2a;
    --button-active: #ff6b00;
    
    /* フォント */
    --font-main: 'Courier New', 'Consolas', monospace;
    --font-display: 'Digital-7', 'Orbitron', monospace;
    
    /* カセット実寸比 */
    --cassette-aspect-ratio: 1.587;
    --reel-center-left: 25%;
    --reel-center-right: 75%;
    --reel-center-y: 50%;
    --reel-size: 45%;
    --tape-strip-inset: 27%;
}

body {
    font-family: var(--font-main);
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0a0a0a 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    width: 100%;
}

/* ===================================
   カセット窓とSVG
   =================================== */
.cassette-window {
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    border: 3px solid #2a2a2a;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 
        inset 0 4px 20px rgba(0, 0, 0, 0.9),
        0 2px 8px rgba(0, 0, 0, 0.5);
    position: relative;
    aspect-ratio: var(--cassette-aspect-ratio);
    width: 100%;
}

.window-frame {
    position: relative;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 4px;
    border: 2px solid #1a1a1a;
    overflow: hidden;
}

#cassette-tape-svg {
    width: 100%;
    height: 100%;
    display: block;
}

/* EJECT オーバーレイ */
.eject-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0);
    pointer-events: none;
    transition: background 0.3s ease;
}

.eject-overlay.active {
    background: rgba(0, 0, 0, 0.7);
}

/* ===================================
   タイトルバー
   =================================== */
.title-bar {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    background: linear-gradient(180deg, #2a2a2a 0%, #1a1a1a 100%);
    border-radius: 8px 8px 0 0;
    border: 1px solid #3a3a3a;
    border-bottom: none;
}

.brand-logo svg {
    filter: drop-shadow(0 0 3px rgba(255, 255, 255, 0.3));
}

.deck-title {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 3px;
    color: #888;
    text-shadow: 0 0 10px rgba(255, 107, 0, 0.3);
    font-family: 'Helvetica', 'Arial', sans-serif;
}

/* ===================================
   デッキ本体
   =================================== */
.deck-body {
    background: linear-gradient(180deg, #1a1a1a 0%, #0f0f0f 100%);
    border: 2px solid #3a3a3a;
    border-radius: 0 0 8px 8px;
    padding: 30px;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 30px;
    box-shadow: 
        inset 0 2px 10px rgba(0, 0, 0, 0.8),
        0 10px 40px rgba(0, 0, 0, 0.9);
    position: relative;
}

/* ===================================
   左側: カセットセクション
   =================================== */
.cassette-section {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.deck-label {
    font-size: 9px;
    letter-spacing: 2px;
    color: #666;
    text-align: center;
    font-weight: 600;
}

.transport-label {
    font-size: 8px;
    letter-spacing: 1.5px;
    color: #555;
    text-align: center;
    margin-top: 10px;
}

/* 下部コントロール */
.lower-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid #2a2a2a;
}

/* POWERボタン */
.power-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    background: #1a1a1a;
    border: 2px solid #2a2a2a;
    border-radius: 4px;
    padding: 12px 20px;
    cursor: pointer;
    transition: all 0.2s;
}

.power-button:hover {
    background: #252525;
    border-color: #3a3a3a;
}

.power-label {
    font-size: 10px;
    letter-spacing: 1px;
    color: #666;
}

.power-led {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #1a1a1a;
    border: 1px solid #2a2a2a;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.8);
    transition: all 0.3s;
}

.power-led.on {
    background: var(--led-green);
    box-shadow: 
        0 0 8px var(--led-green),
        0 0 16px rgba(0, 255, 0, 0.5),
        inset 0 0 4px rgba(255, 255, 255, 0.5);
}

/* PITCH CONTROL */
.pitch-control {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.pitch-control label {
    font-size: 9px;
    letter-spacing: 1px;
    color: #666;
}

.knob {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #3a3a3a 0%, #1a1a1a 100%);
    border: 3px solid #2a2a2a;
    box-shadow: 
        0 4px 12px rgba(0, 0, 0, 0.8),
        inset 0 -2px 8px rgba(0, 0, 0, 0.5),
        inset 0 2px 4px rgba(255, 255, 255, 0.1);
    cursor: pointer;
    position: relative;
}

.knob-indicator {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 12px;
    background: var(--accent-orange);
    border-radius: 2px;
    box-shadow: 0 0 4px var(--accent-orange);
}

.pitch-label-small {
    font-size: 7px;
    color: #555;
    letter-spacing: 0.5px;
}

/* ===================================
   右側: コントロールパネル
   =================================== */
.control-panel {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* ディスプレイエリア */
.display-area {
    background: var(--display-bg);
    border: 3px solid #0a0a0a;
    border-radius: 6px;
    padding: 15px;
    box-shadow: 
        inset 0 4px 20px rgba(0, 0, 0, 0.9),
        0 2px 8px rgba(0, 255, 204, 0.1);
}

/* レベルメーター */
.meter-section {
    margin-bottom: 15px;
}

.meter-label {
    font-size: 8px;
    letter-spacing: 2px;
    color: var(--display-text);
    margin-bottom: 8px;
    text-shadow: 0 0 4px var(--display-text);
}

.meter-container {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.meter-channel {
    display: flex;
    align-items: center;
    gap: 8px;
}

.channel-label {
    font-size: 10px;
    color: var(--display-text);
    font-weight: bold;
    min-width: 12px;
}

.meter-bar {
    display: flex;
    gap: 3px;
    flex: 1;
}

.meter-led {
    flex: 1;
    height: 12px;
    background: rgba(0, 255, 0, 0.1);
    border: 1px solid rgba(0, 255, 0, 0.2);
    border-radius: 2px;
    transition: all 0.1s;
}

.meter-led.active {
    background: var(--led-green);
    border-color: var(--led-green);
    box-shadow: 
        0 0 6px var(--led-green),
        inset 0 0 4px rgba(255, 255, 255, 0.5);
}

.meter-led.warn {
    background: rgba(255, 170, 0, 0.1);
    border-color: rgba(255, 170, 0, 0.2);
}

.meter-led.warn.active {
    background: var(--led-orange);
    border-color: var(--led-orange);
    box-shadow: 
        0 0 6px var(--led-orange),
        inset 0 0 4px rgba(255, 255, 255, 0.5);
}

.meter-led.peak {
    background: rgba(255, 0, 0, 0.1);
    border-color: rgba(255, 0, 0, 0.2);
}

.meter-led.peak.active {
    background: var(--led-red);
    border-color: var(--led-red);
    box-shadow: 
        0 0 8px var(--led-red),
        inset 0 0 4px rgba(255, 255, 255, 0.5);
}

/* カウンターディスプレイ */
.counter-display {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 15px;
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(0, 255, 204, 0.2);
    border-radius: 4px;
}

.counter-reset-btn {
    font-size: 7px;
    letter-spacing: 1px;
    color: #666;
    background: transparent;
    border: 1px solid #2a2a2a;
    padding: 4px 8px;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.2s;
}

.counter-reset-btn:hover {
    color: var(--accent-orange);
    border-color: var(--accent-orange);
}

.counter {
    font-family: var(--font-display);
    font-size: 32px;
    color: var(--display-text);
    letter-spacing: 4px;
    text-shadow: 0 0 10px var(--display-text);
    font-weight: bold;
    min-width: 120px;
    text-align: center;
}

.counter-unit {
    font-family: var(--font-display);
    font-size: 18px;
    color: rgba(0, 255, 204, 0.5);
    letter-spacing: 2px;
}

/* ステータスインジケーター */
.status-indicators {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 15px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 4px;
    font-size: 8px;
    letter-spacing: 1px;
    color: #555;
}

.status-button {
    background: transparent;
    border: 1px solid #2a2a2a;
    color: #666;
    padding: 4px 10px;
    border-radius: 3px;
    font-size: 8px;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.2s;
}

.status-button:hover {
    color: var(--accent-orange);
    border-color: var(--accent-orange);
}

/* ボタン共通スタイル */
.function-button, .transport-button, .main-button {
    background: linear-gradient(180deg, #2a2a2a 0%, #1a1a1a 100%);
    border: 2px solid #3a3a3a;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.function-button:hover, .transport-button:hover, .main-button:hover {
    background: linear-gradient(180deg, #3a3a3a 0%, #2a2a2a 100%);
    border-color: #4a4a4a;
}

.function-button.active, .transport-button.active, .main-button.active {
    border-color: var(--accent-orange);
}

/* 録音・一時停止ボタン行 */
.record-pause-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
}

.function-button {
    padding: 12px;
    gap: 6px;
}

.button-led {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #1a1a1a;
    border: 1px solid #2a2a2a;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.8);
    transition: all 0.3s;
}

.function-button.active .button-led {
    background: var(--led-red);
    box-shadow: 
        0 0 8px var(--led-red),
        0 0 16px rgba(255, 0, 0, 0.5),
        inset 0 0 4px rgba(255, 255, 255, 0.5);
}

.function-button span, .transport-button span, .main-button span {
    font-size: 9px;
    letter-spacing: 1px;
    color: #888;
}

.function-button.active span, .transport-button.active span, .main-button.active span {
    color: var(--accent-orange);
}

/* トランスポートボタン */
.transport-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.transport-button {
    padding: 15px;
    gap: 6px;
}

.button-icon {
    font-size: 18px;
    color: #888;
}

.transport-button.active .button-icon, .main-button.active .button-icon {
    color: var(--accent-orange);
}

/* メイントランスポート */
.main-transport {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.main-button {
    padding: 20px;
    gap: 8px;
    border-width: 3px;
}

.main-button .button-icon {
    font-size: 28px;
}

/* 下部コントロール */
.bottom-controls {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 15px;
}

/* EJECTボタン */
.eject-button {
    background: linear-gradient(180deg, #2a2a2a 0%, #1a1a1a 100%);
    border: 2px solid #3a3a3a;
    border-radius: 4px;
    padding: 15px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.eject-button:hover {
    background: linear-gradient(180deg, #3a3a3a 0%, #2a2a2a 100%);
}

.eject-icon {
    font-size: 20px;
    color: #888;
}

.eject-button span {
    font-size: 9px;
    letter-spacing: 1px;
    color: #888;
}

/* MICコントロール */
.mic-control {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.mic-label {
    font-size: 8px;
    letter-spacing: 1px;
    color: #666;
}

.small-knob {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #3a3a3a 0%, #1a1a1a 100%);
    border: 2px solid #2a2a2a;
    box-shadow: 
        0 3px 8px rgba(0, 0, 0, 0.8),
        inset 0 -1px 4px rgba(0, 0, 0, 0.5);
    cursor: pointer;
}

/* REC LEVELコントロール */
.rec-level-control {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.rec-level-control label {
    font-size: 8px;
    letter-spacing: 1px;
    color: #666;
}

.large-knob {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #3a3a3a 0%, #1a1a1a 100%);
    border: 4px solid #2a2a2a;
    box-shadow: 
        0 5px 15px rgba(0, 0, 0, 0.9),
        inset 0 -3px 12px rgba(0, 0, 0, 0.7),
        inset 0 3px 6px rgba(255, 255, 255, 0.1);
    cursor: pointer;
    position: relative;
}

.large-knob .knob-indicator {
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 18px;
    background: var(--accent-orange);
    border-radius: 2px;
    box-shadow: 0 0 6px var(--accent-orange);
}

.knob-scale {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.scale-mark {
    position: absolute;
    top: -18px;
    left: 50%;
    transform-origin: 35px 53px;
    font-size: 8px;
    color: #555;
    font-weight: bold;
}

/* ===================================
   テープ劣化ディスプレイ
   =================================== */
.tape-wear-display {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid #2a2a2a;
    border-radius: 6px;
    margin-top: 20px;
}

.wear-label {
    font-size: 10px;
    letter-spacing: 1px;
    color: #888;
    white-space: nowrap;
}

.wear-bar {
    flex: 1;
    height: 20px;
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid #2a2a2a;
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.wear-fill {
    height: 100%;
    background: linear-gradient(90deg, 
        var(--led-green) 0%, 
        var(--led-orange) 50%, 
        var(--led-red) 100%);
    width: 0%;
    transition: width 0.5s ease;
    box-shadow: 0 0 10px rgba(255, 107, 0, 0.5);
}

.wear-status {
    font-size: 10px;
    letter-spacing: 1px;
    color: var(--led-green);
    font-weight: bold;
    min-width: 80px;
    text-align: right;
    text-shadow: 0 0 4px currentColor;
}

/* ===================================
   情報パネル
   =================================== */
.info-panel {
    display: flex;
    justify-content: space-around;
    padding: 15px 20px;
    background: rgba(26, 26, 26, 0.5);
    border: 1px solid #2a2a2a;
    border-radius: 6px;
    margin-top: 10px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-label {
    font-size: 9px;
    letter-spacing: 1px;
    color: #666;
}

.info-value {
    font-size: 11px;
    letter-spacing: 1px;
    color: var(--display-text);
    font-weight: bold;
    text-shadow: 0 0 4px var(--display-text);
}

/* ===================================
   レスポンシブ
   =================================== */
@media (max-width: 1024px) {
    .deck-body {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    body {
        padding: 5px;
    }
    
    .deck-body {
        padding: 12px;
        gap: 12px;
    }
    
    .cassette-window {
        padding: 10px;
    }
}

/* ===================================
   アニメーション
   =================================== */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.pulsing {
    animation: pulse 1s ease-in-out infinite;
}