/* Variables CSS para consistencia */
:root {
    --color-deep-space: #0a0e27;
    --color-slate: #1a1f3a;
    --color-primary-start: #4a6fa5;
    --color-primary-end: #2d4373;
    --color-accent: #6c8cd5;
    --color-text: #f4f6f7;
    --color-success: #2ecc71;
    --color-success-dark: #27ae60;
    --color-danger: #e74c3c;
    --color-danger-dark: #c0392b;
    --glow-color: rgba(74, 111, 165, 0.5);
    --glow-bright: rgba(108, 140, 213, 0.8);
    --glow-success: rgba(46, 204, 113, 0.6);
    --glow-danger: rgba(231, 76, 60, 0.5);
}

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

/* Estilos generales de página */
html, body {
    height: 100%;
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', Helvetica, Arial, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center; 
    flex-direction: column;
    padding: 20px;
}

body {
    width: 100%;
    background: linear-gradient(135deg, var(--color-deep-space) 0%, var(--color-slate) 50%, var(--color-deep-space) 100%);
    overflow-y: auto;
    position: relative;
}

h1 {
    font-size: 2.8em;
    color: var(--color-text);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
    margin-bottom: 30px;
    text-align: center;
    font-weight: 800;
    letter-spacing: 2px;
    background: linear-gradient(135deg, #ffffff 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 2;
}

.inputs {
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
    position: relative;
    z-index: 2;
}

input[type="date"] {
    padding: 14px 28px;
    font-size: 1.05rem;
    border: 1.5px solid rgba(108, 140, 213, 0.3);
    border-radius: 12px;
    outline: none;
    background: rgba(74, 111, 165, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--color-text);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    color-scheme: dark;
    font-weight: 600;
    cursor: pointer;
}

input[type="date"]:hover {
    background: rgba(74, 111, 165, 0.15);
    border-color: rgba(108, 140, 213, 0.5);
}

input[type="date"]:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--glow-color), 0 8px 25px rgba(0, 0, 0, 0.3);
    background: rgba(74, 111, 165, 0.2);
}

.sala {
    width: 100%;
    max-width: 1000px;
    border-radius: 20px;
    padding: 40px;
    background: rgba(10, 14, 39, 0.7);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1.5px solid rgba(108, 140, 213, 0.2);
    box-shadow: 0 10px 40px 0 rgba(0, 0, 0, 0.4), 0 1px 0 0 rgba(255, 255, 255, 0.05) inset;
    margin-top: 20px;
    position: relative;
    z-index: 2;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 18px;
    margin-top: 25px;
    max-width: 100%;
}

.bloque {
    aspect-ratio: 11 / 7;
    margin: 0;
    padding: 12px;
    border-radius: 14px;
    background: rgba(74, 111, 165, 0.12);
    border: 1.5px solid rgba(108, 140, 213, 0.25);
    color: white;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    white-space: pre-line;
    text-align: center;
    transition: all 0.3s ease;
    font-size: 0.95em;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(5px);
}

.bloque:not(.ocupado):hover {
    background: rgba(74, 111, 165, 0.25);
    border-color: var(--color-accent);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.bloque.seleccionado {
    background: linear-gradient(145deg, var(--color-success), var(--color-success-dark));
    color: white;
    border-color: transparent;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.bloque.seleccionado::after {
    content: '✓';
    position: absolute;
    top: 5px;
    right: 8px;
    font-size: 1.2em;
    color: white;
    font-weight: bold;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.ocupado {
    background: rgba(192, 57, 43, 0.4) !important;
    border-color: rgba(231, 76, 60, 0.4) !important;
    color: rgba(255, 255, 255, 0.85);
    cursor: pointer;
    backdrop-filter: blur(8px);
}

.ocupado:hover {
    background: rgba(192, 57, 43, 0.6) !important;
    border-color: rgba(231, 76, 60, 0.6) !important;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* Responsive Design */
@media (min-width: 550px) {
    .grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 768px) {
    .grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 20px;
    }
    
    .bloque {
        font-size: 1em;
        padding: 14px;
    }
    
    .sala {
        padding: 45px;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.2em;
    }
    
    .sala {
        padding: 25px;
    }
    
    input[type="date"] {
        padding: 12px 20px;
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.8em;
        letter-spacing: 1px;
    }
    
    .sala {
        padding: 20px;
        border-radius: 16px;
    }
    
    .grid {
        gap: 12px;
    }
    
    .bloque {
        font-size: 0.85em;
        padding: 8px;
    }
    
    input[type="date"] {
        font-size: 0.9rem;
        padding: 10px 16px;
    }
}