/* ========================================
   KANBAN LEADS - VISTA TABLERO KANBAN
   ======================================== */

/* ========================================
   VARIABLES CSS
   ======================================== */
:root {
    --kanban-bg: #0a0f14;
    --kanban-surface: #161b22;
    --kanban-border: #30363d;
    --kanban-text: #c9d1d9;
    --kanban-text-muted: #8b949e;
    --kanban-primary: #3b82f6;
    --kanban-primary-hover: #2563eb;
    --kanban-success: #10b981;
    --kanban-warning: #f59e0b;
    --kanban-danger: #ef4444;
    --kanban-card-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --kanban-card-shadow-hover: 0 4px 16px rgba(59, 130, 246, 0.2);
    --kanban-transition: all 0.2s ease;
}

/* ========================================
   CONTENEDOR PRINCIPAL
   ======================================== */
.kanban-leads-container {
    max-width: 100%;
    margin: 0 auto;
    padding: 1.5rem;
    background: var(--kanban-bg);
    min-height: 100vh;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ========================================
   FILTROS
   ======================================== */
.kanban-filters {
    background: var(--kanban-surface);
    border: 1px solid var(--kanban-border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.kanban-filters-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-end;
}

.kanban-filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
    min-width: 180px;
}

.kanban-filter-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--kanban-text);
    font-size: 0.875rem;
    font-weight: 500;
}

.kanban-filter-label svg {
    color: var(--kanban-primary);
}

.kanban-filter-input,
.kanban-filter-select {
    width: 100%;
    padding: 0.625rem 0.875rem;
    background: var(--kanban-bg);
    border: 1px solid var(--kanban-border);
    border-radius: 8px;
    color: var(--kanban-text);
    font-size: 0.9375rem;
    transition: var(--kanban-transition);
}

.kanban-filter-input:focus,
.kanban-filter-select:focus {
    outline: none;
    border-color: var(--kanban-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.kanban-filter-actions {
    display: flex;
    gap: 0.75rem;
    flex-shrink: 0;
}

.kanban-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: 8px;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--kanban-transition);
    white-space: nowrap;
}

.kanban-btn-primary {
    background: var(--kanban-primary);
    color: white;
}

.kanban-btn-primary:hover {
    background: var(--kanban-primary-hover);
    transform: translateY(-1px);
}

.kanban-btn-secondary {
    background: transparent;
    color: var(--kanban-text);
    border: 1px solid var(--kanban-border);
}

.kanban-btn-secondary:hover {
    background: var(--kanban-surface);
    border-color: var(--kanban-text-muted);
}

/* ========================================
   LOADER
   ======================================== */
.kanban-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    gap: 1rem;
}

.kanban-loader-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(59, 130, 246, 0.2);
    border-top-color: var(--kanban-primary);
    border-radius: 50%;
    animation: kanban-spin 0.8s linear infinite;
}

.kanban-loader p {
    color: var(--kanban-text-muted);
    font-size: 0.9375rem;
}

@keyframes kanban-spin {
    to {
        transform: rotate(360deg);
    }
}

/* ========================================
   TABLERO KANBAN
   ======================================== */
.kanban-board {
    display: flex;
    gap: 1.5rem;
    overflow-x: auto;
    padding-bottom: 1rem;
    min-height: 600px;
}

/* ========================================
   COLUMNAS
   ======================================== */
.kanban-column {
    flex: 0 0 320px;
    min-width: 320px;
    display: flex;
    flex-direction: column;
    background: var(--kanban-surface);
    border: 1px solid var(--kanban-border);
    border-radius: 12px;
    max-height: calc(100vh - 280px);
}

.kanban-column-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--kanban-border);
    background: rgba(59, 130, 246, 0.05);
}

.kanban-column-title {
    margin: 0;
    color: var(--kanban-text);
    font-size: 1rem;
    font-weight: 600;
}

.kanban-column-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    padding: 0 0.5rem;
    background: var(--kanban-primary);
    color: white;
    border-radius: 14px;
    font-size: 0.875rem;
    font-weight: 600;
}

.kanban-column-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.kanban-column-content::-webkit-scrollbar {
    width: 8px;
}

.kanban-column-content::-webkit-scrollbar-track {
    background: transparent;
}

.kanban-column-content::-webkit-scrollbar-thumb {
    background: var(--kanban-border);
    border-radius: 4px;
}

.kanban-column-content::-webkit-scrollbar-thumb:hover {
    background: var(--kanban-text-muted);
}

/* Estado cuando se arrastra sobre la columna */
.kanban-column-content.drag-over {
    background: rgba(59, 130, 246, 0.1);
    border: 2px dashed var(--kanban-primary);
    border-radius: 8px;
}

/* ========================================
   EMPTY STATE
   ======================================== */
.kanban-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: var(--kanban-text-muted);
    text-align: center;
}

.kanban-empty-state svg {
    margin-bottom: 0.75rem;
    opacity: 0.5;
}

.kanban-empty-state p {
    margin: 0;
    font-size: 0.875rem;
}

/* Ocultar empty state cuando hay cards */
.kanban-column-content:not(:empty) .kanban-empty-state {
    display: none;
}

/* ========================================
   CARDS
   ======================================== */
.kanban-card {
    background: var(--kanban-bg);
    border: 1px solid var(--kanban-border);
    border-radius: 10px;
    padding: 1rem;
    cursor: grab;
    transition: var(--kanban-transition);
    box-shadow: var(--kanban-card-shadow);
}

.kanban-card:hover {
    border-color: var(--kanban-primary);
    box-shadow: var(--kanban-card-shadow-hover);
    transform: translateY(-2px);
}

.kanban-card.dragging {
    opacity: 0.5;
    cursor: grabbing;
    transform: rotate(3deg);
}

/* Header de la card */
.kanban-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.kanban-card-title {
    flex: 1;
}

.kanban-card-title a {
    color: var(--kanban-text);
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.kanban-card-title a:hover {
    color: var(--kanban-primary);
    text-decoration: underline;
}

.kanban-card-date {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.5rem;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 6px;
    color: var(--kanban-primary);
    font-size: 0.75rem;
    font-weight: 500;
}

/* Body de la card */
.kanban-card-body {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.kanban-card-row {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.kanban-card-label {
    flex-shrink: 0;
    width: 90px;
    color: var(--kanban-text-muted);
    font-weight: 500;
}

.kanban-card-value {
    flex: 1;
    color: var(--kanban-text);
    word-break: break-word;
}

.kanban-card-value a {
    color: var(--kanban-primary);
    text-decoration: none;
}

.kanban-card-value a:hover {
    text-decoration: underline;
}

/* Badges */
.kanban-card-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.625rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 6px;
    color: var(--kanban-success);
    font-size: 0.75rem;
    font-weight: 500;
}

.kanban-card-badge.warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
    color: var(--kanban-warning);
}

.kanban-card-badge.danger {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--kanban-danger);
}

/* Footer de la card */
.kanban-card-footer {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--kanban-border);
}

.kanban-card-cotizacion {
    font-size: 0.875rem;
    color: var(--kanban-text-muted);
}

/* ========================================
   NOTIFICACIONES
   ======================================== */
.kanban-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 1rem 1.5rem;
    background: var(--kanban-surface);
    border: 1px solid var(--kanban-border);
    border-left: 4px solid var(--kanban-success);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 9999;
    max-width: 400px;
    animation: kanban-slide-in 0.3s ease;
}

.kanban-notification.error {
    border-left-color: var(--kanban-danger);
}

.kanban-notification p {
    margin: 0;
    color: var(--kanban-text);
    font-size: 0.9375rem;
}

@keyframes kanban-slide-in {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1200px) {
    .kanban-column {
        flex: 0 0 280px;
        min-width: 280px;
    }
}

@media (max-width: 768px) {
    .kanban-leads-container {
        padding: 1rem;
    }

    .kanban-filters-wrapper {
        flex-direction: column;
    }

    .kanban-filter-group {
        min-width: 100%;
    }

    .kanban-filter-actions {
        width: 100%;
    }

    .kanban-btn {
        flex: 1;
        justify-content: center;
    }

    .kanban-board {
        flex-direction: column;
        gap: 1rem;
    }

    .kanban-column {
        flex: 1;
        min-width: 100%;
        max-height: none;
    }

    .kanban-column-content {
        max-height: 400px;
    }

    .kanban-card-label {
        width: 80px;
    }
}

@media (max-width: 480px) {
    .kanban-card-header {
        flex-direction: column;
    }

    .kanban-card-date {
        align-self: flex-start;
    }

    .kanban-card-row {
        flex-direction: column;
        gap: 0.25rem;
    }

    .kanban-card-label {
        width: 100%;
    }
}

/* ========================================
   ESTADOS DE CARGA Y ERROR
   ======================================== */
.kanban-error {
    padding: 2rem;
    text-align: center;
    color: var(--kanban-danger);
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 12px;
    margin: 2rem auto;
    max-width: 600px;
}

/* ========================================
   ACCESIBILIDAD
   ======================================== */
.kanban-card:focus,
.kanban-btn:focus {
    outline: 2px solid var(--kanban-primary);
    outline-offset: 2px;
}

/* ========================================
   UTILIDADES
   ======================================== */
.kanban-hidden {
    display: none !important;
}

.kanban-loading {
    pointer-events: none;
    opacity: 0.6;
}