/* ═══════════════════════════════════════════════════════════════
   🏋️ PLAN DE ENTRENAMIENTO - TEMA FUTURISTA OSCURO
   ═══════════════════════════════════════════════════════════════ */

.training-container {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 2rem;
    align-items: start;
    perspective: 1000px;
}

.training-form {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow-soft);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-smooth);
    transform-style: preserve-3d;
}

.training-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--primary), var(--accent));
    background-size: 200% 100%;
    animation: borderFlow 3s linear infinite;
}

.training-form:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-neon);
    transform: translateY(-5px);
}

.training-preview {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow-soft);
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    transition: all var(--transition-smooth);
}

.training-preview::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.training-preview:hover {
    border-color: var(--border-glow);
}

/* ═══════════════════════════════════════════════════════════════
   🃏 WORKOUT CARDS FUTURISTAS
   ═══════════════════════════════════════════════════════════════ */

.workout-card {
    background: var(--bg-glass);
    backdrop-filter: var(--glass-blur);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1rem;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-smooth);
    transform-style: preserve-3d;
}

.workout-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent), var(--primary));
    box-shadow: var(--accent-glow);
}

.workout-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 40%, rgba(0, 212, 255, 0.03) 100%);
    pointer-events: none;
}

.workout-card:hover {
    transform: translateX(5px) translateY(-3px) rotateY(1deg);
    border-color: var(--accent);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.2), 0 0 60px rgba(0, 212, 255, 0.1);
}

.workout-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    position: relative;
    z-index: 1;
}

.workout-card-title {
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.workout-card-title::before {
    content: '▸';
    color: var(--accent);
    -webkit-text-fill-color: var(--accent);
    animation: glowPulse 2s infinite;
}

@media (max-width: 1200px) {
    .training-container {
        grid-template-columns: 1fr;
    }
}

/* ═══════════════════════════════════════════════════════════════
   📅 TABS DE DÍAS - ESTILO CIBERNÉTICO
   ═══════════════════════════════════════════════════════════════ */

.training-days-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    perspective: 800px;
}

.training-day-tab {
    padding: 0.6rem 1.2rem;
    border: 1px solid var(--border);
    background: var(--bg-glass);
    backdrop-filter: var(--glass-blur);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-smooth);
    font-size: 0.9rem;
    color: var(--text-secondary);
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
}

.training-day-tab::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.2), transparent);
    transition: left 0.5s;
}

.training-day-tab:hover::before {
    left: 100%;
}

.training-day-tab:hover {
    transform: translateY(-2px) rotateX(5deg);
    border-color: rgba(0, 212, 255, 0.4);
    color: var(--text-primary);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.training-day-tab.active {
    background: linear-gradient(135deg, var(--accent) 0%, #0099cc 100%);
    color: var(--bg-primary);
    border-color: var(--accent);
    font-weight: 600;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.5), 0 0 40px rgba(0, 212, 255, 0.3);
    animation: glowPulse 2s infinite;
}

.training-day-editor {
    animation: fadeIn 0.5s ease-out;
    transform-style: preserve-3d;
}

/* ═══════════════════════════════════════════════════════════════
   💪 SECCIÓN DE EJERCICIOS
   ═══════════════════════════════════════════════════════════════ */

.exercises-section {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    position: relative;
}

.exercises-section::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
    box-shadow: var(--accent-glow);
}

.exercise-row {
    background: var(--bg-glass);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-bottom: 0.75rem;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.exercise-row::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--accent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.exercise-row:hover {
    border-color: var(--border-glow);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3), 0 0 15px rgba(0, 212, 255, 0.1);
    transform: translateX(3px);
}

.exercise-row:hover::before {
    opacity: 1;
}

/* ═══════════════════════════════════════════════════════════════
   � BOTÓN EXCEL
   ═══════════════════════════════════════════════════════════════ */

.btn-excel {
    background: linear-gradient(135deg, #217346 0%, #185c34 100%);
    color: white;
    border: 1px solid #1e6b3e;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(33, 115, 70, 0.3);
}

.btn-excel:hover {
    background: linear-gradient(135deg, #1e6b3e 0%, #145228 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(33, 115, 70, 0.5), 0 0 15px rgba(33, 115, 70, 0.3);
}

.btn-excel:active {
    transform: translateY(0);
}

/* ═══════════════════════════════════════════════════════════════
   📱 RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
    .training-days-tabs {
        justify-content: center;
    }
    
    .training-form,
    .training-preview {
        padding: 1.5rem;
    }
    
    .workout-card,
    .exercise-row {
        padding: 1rem;
    }
    
    .btn-excel {
        width: 100%;
        justify-content: center;
    }

    .day-actions-grid {
        grid-template-columns: 1fr !important;
    }

    .day-position-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

/* ═══════════════════════════════════════════════════════════════
   🔀 DÍAS FLEXIBLES - MODAL Y ACCIONES
   ═══════════════════════════════════════════════════════════════ */

.day-actions-card {
    background: var(--bg-glass) !important;
    border-color: rgba(0, 212, 255, 0.2) !important;
}

.day-actions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.btn-accent {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.15) 0%, rgba(0, 212, 255, 0.05) 100%);
    color: var(--accent, #00d4ff);
    border: 1px solid rgba(0, 212, 255, 0.3);
    padding: 0.6rem 1rem;
    border-radius: var(--radius-sm, 6px);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
}

.btn-accent:hover {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.3) 0%, rgba(0, 212, 255, 0.1) 100%);
    border-color: rgba(0, 212, 255, 0.6);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.2);
}

.btn-danger-outline {
    background: transparent;
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
    padding: 0.6rem 1rem;
    border-radius: var(--radius-sm, 6px);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
}

.btn-danger-outline:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: #ef4444;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.2);
}

/* Modal Mover/Copiar Día */
.day-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    animation: fadeIn 0.2s ease-out;
}

.day-modal.hidden {
    display: none;
}

.day-modal-content {
    background: var(--bg-card, #1a1a2e);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 12px;
    width: 90%;
    max-width: 520px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 212, 255, 0.15);
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.day-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border, rgba(255,255,255,0.1));
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, transparent 100%);
}

.day-modal-header h4 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--text-primary, #fff);
    background: linear-gradient(135deg, var(--accent, #00d4ff), var(--primary, #c4d600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.btn-close {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-secondary, #aaa);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.btn-close:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: #ef4444;
    color: #ef4444;
}

.day-modal-body {
    padding: 1.5rem;
}

.day-position-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    margin-top: 1rem;
}

.day-position-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.75rem 0.5rem;
    background: var(--bg-glass, rgba(255,255,255,0.05));
    border: 1px solid var(--border, rgba(255,255,255,0.1));
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-primary, #fff);
    position: relative;
}

.day-position-btn:hover:not(:disabled) {
    background: rgba(0, 212, 255, 0.15);
    border-color: rgba(0, 212, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.2);
}

.day-position-btn.current {
    background: rgba(0, 212, 255, 0.1);
    border-color: rgba(0, 212, 255, 0.4);
    opacity: 0.6;
}

.day-position-btn:disabled {
    cursor: not-allowed;
    opacity: 0.4;
}

.day-pos-num {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent, #00d4ff);
}

.day-pos-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary, #fff);
}

.day-pos-name {
    font-size: 0.65rem;
    color: var(--text-muted, #888);
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 100%;
}

.day-pos-badge {
    position: absolute;
    top: -6px;
    right: -6px;
    background: var(--accent, #00d4ff);
    color: #000;
    font-size: 0.55rem;
    font-weight: 700;
    padding: 1px 6px;
    border-radius: 8px;
    text-transform: uppercase;
}