/* === Gradientes reutilizables === */
.accent-blue {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
}

.text-gradient {
    background: linear-gradient(135deg, #334155 0%, #1e40af 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* === Gradientes institucionales compartidos === */
.bg-gradient-purple {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
}

.bg-gradient-blue {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
}

.bg-gradient-green {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.bg-gradient-orange {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.bg-gradient-red {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

/* === Barras portada (hover interactivo) === */
.bar {
    opacity: 0.8;
    transition: opacity 0.6s ease, filter 0.6s ease;
}

.bar-blue:hover {
    opacity: 1;
    filter: brightness(1.1) saturate(1.05);
}

.bar-green:hover {
    opacity: 1;
    filter: brightness(1.1) hue-rotate(-10deg);
}

.bar-purple:hover {
    opacity: 1;
    filter: brightness(1.1) hue-rotate(10deg);
}

.bar-orange:hover {
    opacity: 1;
    filter: brightness(1.1) saturate(1.1);
}

/* === Métricas y badges === */
.metric-badge {
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* === SVG interactivo === */
svg text:hover {
    fill: #0ea5e9;
    cursor: pointer;
    font-weight: bold;
}

/* === Tabs de casos de uso === */
.use-case-tab {
    background: #f3f4f6;
    color: #6b7280;
    border: 2px solid transparent;
}

.use-case-tab.active {
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    color: white;
    border-color: #3b82f6;
}

.use-case-tab:hover:not(.active) {
    background: #e5e7eb;
    color: #374151;
}

/* === Utilidades de transición y elevación === */
.transition-base {
    transition: all 0.3s ease;
}

.hover-elevate:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}