/* Variables CSS */
:root {
    --primary-color: #37474F;
    --secondary-color: #546E7A;
    --accent-color: #FF8C42;
    --success-color: #4CAF50;
    --text-dark: #263238;
    --text-light: #546E7A;
    --text-muted: #90A4AE;
    --bg-light: #FAFAFA;
    --bg-cream: #F5F5F5;
    --bg-white: #FFFFFF;
    --border-color: #ECEFF1;
    --shadow-light: 0 2px 10px rgba(55, 71, 79, 0.08);
    --shadow-medium: 0 4px 20px rgba(55, 71, 79, 0.12);
    --shadow-heavy: 0 8px 30px rgba(55, 71, 79, 0.18);
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-accent: linear-gradient(135deg, var(--accent-color), #FFA563);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Animacions globals */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes grain {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-50px, -50px); }
}

@keyframes slideInFromTop {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes zoomIn {
    from {
        transform: translate(-50%, -50%) scale(0.5);
        opacity: 0;
    }
    to {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
}