:root {
    --bg-color: #f4f6f8; /* gris muy claro */
    --card-bg: #ffffff; /* blancos */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --accent-color: #3b82f6; /* azul premium */
    --accent-glow: rgba(59, 130, 246, 0.2);
    --border-color: #e2e8f0;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

.header {
    margin-bottom: 30px;
    text-align: left;
}

h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin: 0 0 8px 0;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin: 0;
}

.filter-bar {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 24px;
    margin-bottom: 32px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.filter-form {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.form-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-group label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
}

.form-group input[type="text"],
.form-group input[type="date"] {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    color: var(--text-primary);
    padding: 10px 16px;
    border-radius: 10px;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    font-weight: 500;
    outline: none;
    transition: all 0.3s ease;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.02);
}

.form-group input[type="text"]:hover,
.form-group input[type="date"]:hover {
    border-color: #cbd5e1;
    background: #ffffff;
}

.form-group input[type="text"]:focus,
.form-group input[type="date"]:focus {
    border-color: var(--accent-color);
    background: #ffffff;
    box-shadow: 0 0 0 4px var(--accent-glow);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    border-radius: 10px;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
    background: linear-gradient(135deg, #4f8cf6 0%, #1d4ed8 100%);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.metric-card {
    display: flex;
    align-items: center;
    gap: 20px;
}

.metric-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.metric-icon {
    font-size: 2.5rem;
    background: #f1f5f9;
    padding: 15px;
    border-radius: 16px;
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.metric-icon svg {
    width: 36px;
    height: 36px;
    stroke-width: 2px;
}

.metric-info h2 {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    margin: 0 0 8px 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.big-number {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    line-height: 1;
}

.chart-card {
    margin-bottom: 32px;
}

.chart-card h2 {
    margin: 0 0 20px 0;
    font-size: 1.2rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

.chart-container {
    position: relative;
    height: 300px;
    width: 100%;
}

.table-card {
    padding: 0;
    overflow: hidden;
}

.table-card h2 {
    padding: 20px 24px;
    margin: 0;
    font-size: 1.2rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    white-space: nowrap;
}

table th,
table td {
    padding: 16px 24px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

table th {
    background: #f8fafc;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

table td {
    color: var(--text-primary);
    font-size: 0.95rem;
}

table tbody tr:hover {
    background: #f1f5f9;
}

table tbody tr:last-child td {
    border-bottom: none;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Accordion */
.color-badge {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 4px;
    box-shadow: 0 0 2px rgba(0,0,0,0.1);
    margin-right: 8px;
}
.cat-bg-Frio { background-color: #94a3b8; }
.cat-bg-Templado { background-color: #fcd34d; }
.cat-bg-Caliente { background-color: #fb923c; }
.cat-bg-Arde { background-color: #ef4444; }
.cat-bg-Compra-muy-probable { background-color: #22c55e; }

.accordion-group {
    background: #ffffff;
    border-bottom: 1px solid var(--border-color);
}
.accordion-group:last-child {
    border-bottom: none;
}
.accordion-header {
    padding: 16px 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-primary);
    font-weight: 600;
    transition: background 0.2s;
    list-style: none; /* remove default arrow */
}
.accordion-header::-webkit-details-marker {
    display: none; /* remove default arrow safari */
}
.accordion-header:hover {
    background: #f8fafc;
}
details[open] .cat-icon i {
    transform: rotate(180deg);
}
.cat-icon i {
    transition: transform 0.3s;
}
.accordion-content {
    padding: 0; 
}

/* Modal */
.modal {
    border: none;
    border-radius: 16px;
    padding: 0;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    width: 95%;
    max-width: 1200px;
    background: #fff;
    margin: auto;
}
.modal::backdrop {
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}
.modal-header h3 { margin: 0; color: var(--text-primary); }
.close-modal {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
}
.modal-body {
    padding: 24px;
    height: 80vh;
    max-height: 85vh;
    overflow-y: auto;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}
.btn-sm {
    background: #f1f5f9;
    color: var(--accent-color);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s;
    font-weight: 500;
}
.btn-sm:hover {
    background: var(--accent-color);
    color: #fff;
    border-color: var(--accent-color);
}