/* ==========================================================================
   PSYCORE SEQUENCER - ESTÉTICA PROFESIONAL (MEJORADA)
   ========================================================================== */

/* --- FUENTES Y VARIABLES --- */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Rajdhani:wght@500;700&display=swap');

:root {
    --bg-color: #0a0a0a;
    --surface-color: #111111;
    --surface-bright-color: #1a1a1a;
    --border-color: #2a2a2a;
    --text-color: #e0e0e0;
    --text-dim-color: #888;
    --accent-cyan: #00eaff;
    --accent-magenta: #ff00ff;
    --accent-yellow: #ffdd00;
    --track-bg: #0d0d0d;
    --track-hover-bg: #151515;
    --step-inactive-bg: #1f1f1f;
    --step-active-bg: var(--accent-cyan);
    --step-current-border: var(--accent-magenta);
}

body {
    background-color: #000;
    font-family: 'Rajdhani', sans-serif;
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    background-image:
        repeating-linear-gradient(45deg, transparent, transparent 2px, rgba(255, 255, 255, 0.01) 2px, transparent 4px),
        radial-gradient(circle at 50% 50%, rgba(0, 234, 255, 0.05) 0%, var(--bg-color) 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 0, 255, 0.05) 0%, var(--bg-color) 50%);
}

#psycore-sequencer-container {
    font-family: 'Orbitron', monospace;
    background-color: var(--bg-color);
    color: var(--text-color);
    padding: 20px 30px;
    border-radius: 8px;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.8), 0 0 15px rgba(0, 234, 255, 0.1);
    max-width: 1400px;
    margin: 20px auto;
}

/* --- CABECERA Y CONTROLES --- */
.sequencer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
    flex-wrap: wrap;
    gap: 20px;
}

.sequencer-header h2 {
    margin: 0;
    font-weight: 900;
    font-size: 2.5em;
    text-transform: uppercase;
    letter-spacing: 4px;
    background: linear-gradient(45deg, var(--accent-cyan), var(--accent-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 15px rgba(0, 234, 255, 0.5);
}

.controls {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.controls button, .track-controls button {
    background: linear-gradient(145deg, var(--surface-bright-color), var(--surface-color));
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 12px 20px;
    border-radius: 5px;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    font-size: 0.9em;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

.controls button:hover, .track-controls button:hover {
    background: linear-gradient(145deg, var(--surface-color), var(--surface-bright-color));
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.5);
}

#play-btn {
    background: linear-gradient(145deg, var(--accent-cyan), #00a8cc);
    color: #000;
    border-color: var(--accent-cyan);
    box-shadow: 0 4px 10px rgba(0, 234, 255, 0.4);
}

#play-btn:hover {
    background: linear-gradient(145deg, #00ffff, var(--accent-cyan));
    box-shadow: 0 6px 15px rgba(0, 234, 255, 0.6);
}

#clear-btn {
    background: linear-gradient(145deg, #d9534f, #c9302c);
    color: white;
    border-color: #d9534f;
}

#render-btn {
    background: linear-gradient(145deg, #5bc0de, #46b8da);
    color: white;
    border-color: #5bc0de;
}

/* --- NUEVO BOTÓN DE PATRÓN --- */
#default-pattern-btn {
    background: linear-gradient(145deg, var(--accent-magenta), #cc00cc);
    color: white;
    border-color: var(--accent-magenta);
    font-size: 0.8em;
    padding: 10px 15px;
}

#default-pattern-btn:hover {
    background: linear-gradient(145deg, #ff00ff, var(--accent-magenta));
    box-shadow: 0 6px 15px rgba(255, 0, 255, 0.6);
}

/* --- ESTILO DE CONTROLES NUMÉRICOS (MEJORADO) --- */
.bpm-control, .bars-control {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    padding: 12px 20px;
    border-radius: 5px;
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.3);
}

.bpm-control label, .bars-control label {
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    font-size: 1.1em; /* ¡MÁS GRANDE! */
    color: var(--accent-cyan);
    margin-right: 10px;
    text-shadow: 0 0 5px var(--accent-cyan);
}

.bpm-control input, .bars-control input {
    background-color: #222;
    border: 1px solid #444;
    color: var(--accent-magenta);
    padding: 8px 12px;
    border-radius: 4px;
    width: 70px; /* ¡MÁS ANCHO! */
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    font-size: 1.1em; /* ¡MÁS GRANDE! */
    text-align: center;
}

/* --- CONTENEDOR DE PISTAS --- */
.tracks-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* --- ESTILO DE CADA PISTA --- */
.track {
    background: linear-gradient(145deg, var(--track-bg), #080808);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.track::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 0, 255, 0.03) 50%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.track:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 0, 255, 0.1);
}

.track:hover::before {
    opacity: 1;
}

.track-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.track-header h3 {
    margin: 0;
    font-size: 1.3em;
    font-weight: 700;
    color: var(--accent-magenta);
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 0 10px rgba(255, 0, 255, 0.3);
}

.track-controls {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    background-color: rgba(0, 0, 0, 0.2);
    padding: 10px;
    border-radius: 5px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* --- CONTROLES DE PISTA --- */
.volume-control, .synth-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8em;
    color: var(--text-dim-color);
}

.volume-control label, .synth-controls label {
    font-family: 'Rajdhani', sans-serif;
    font-weight: 500;
    margin-right: 5px;
}

.volume-slider, .synth-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 70px;
    height: 6px;
    background: linear-gradient(90deg, #333 0%, var(--accent-cyan) 100%);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.4);
}

.volume-slider::-webkit-slider-thumb, .synth-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--accent-cyan);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px var(--accent-cyan);
    border: 2px solid #fff;
}

.volume-slider::-moz-range-thumb, .synth-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--accent-cyan);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px var(--accent-cyan);
    border: 2px solid #fff;
}

.effect-selector, .sample-selector {
    background-color: #222;
    border: 1px solid #444;
    color: var(--text-color);
    padding: 8px 12px;
    border-radius: 5px;
    font-family: 'Orbitron', monospace;
    font-size: 0.8em;
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.effect-selector:hover, .sample-selector:hover {
    background-color: #333;
    border-color: var(--accent-cyan);
}

.effect-selector option, .sample-selector option {
    background-color: #222;
    color: var(--text-color);
}

.upload-btn {
    background: linear-gradient(145deg, #f0ad4e, #ec971f);
    color: white;
    border: 1px solid #f0ad4e;
    padding: 8px 12px;
    border-radius: 5px;
    font-family: 'Orbitron', monospace;
    font-size: 0.8em;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.upload-btn:hover:not(:disabled) {
    background: linear-gradient(145deg, #ec971f, #f0ad4e);
    box-shadow: 0 0 10px var(--accent-yellow);
}

.upload-btn:disabled {
    background-color: #666;
    border-color: #666;
    cursor: not-allowed;
    opacity: 0.6;
}

/* --- REJILLA DE PASOS --- */
.step-row {
    display: flex;
    gap: 6px;
    padding: 15px;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 5px;
    border: 1px solid #222;
}

.step {
    width: 35px;
    height: 35px;
    background-color: var(--step-inactive-bg);
    border: 1px solid #333;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.1s ease;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.4);
    position: relative;
}

.step:hover {
    background-color: #2a2a2a;
    transform: scale(1.1);
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.1);
}

.step.active {
    background-color: var(--step-active-bg);
    border-color: var(--step-active-bg);
    box-shadow: 0 0 15px var(--accent-cyan), inset 0 2px 4px rgba(0, 0, 0, 0.6);
    animation: glow-pulse 1s infinite alternate;
}

.step.current {
    border-color: var(--step-current-border);
    box-shadow: 0 0 10px var(--accent-magenta), inset 0 0 5px var(--accent-magenta);
    transform: scale(1.05);
}

@keyframes glow-pulse {
    from { box-shadow: 0 0 15px var(--accent-cyan), inset 0 2px 4px rgba(0, 0, 0, 0.6); }
    to { box-shadow: 0 0 20px var(--accent-cyan), inset 0 2px 4px rgba(0, 0, 0, 0.6); }
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .sequencer-header {
        flex-direction: column;
        align-items: stretch;
        gap: 15px;
    }
    .controls {
        justify-content: center;
    }
    .step {
        width: 30px;
        height: 30px;
    }
}