:root {
    --bg: #0f172a;
    --surface: #1e293b;
    --surface2: #334155;
    --border: #475569;
    --text: #f1f5f9;
    --text2: #94a3b8;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --alta: #ef4444;
    --media: #f59e0b;
    --baja: #22c55e;
    --pendiente: #64748b;
    --progreso: #3b82f6;
    --completada: #22c55e;
    --sistemas: #8b5cf6;
    --ia: #ec4899;
    --telco: #06b6d4;
    --admin: #f97316;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* ── Header ── */
.header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
}
.header h1 { font-size: 1.25rem; font-weight: 700; }
.header-actions { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }

/* ── Buttons ── */
.btn {
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border);
    background: var(--surface2);
    color: var(--text);
    cursor: pointer;
    font-size: 0.875rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    transition: background 0.15s;
}
.btn:hover { background: var(--border); }
.btn-primary { background: var(--accent); border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { background: var(--alta); border-color: var(--alta); }
.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.75rem; }

/* ── Filters ── */
.filters {
    padding: 0.75rem 1.5rem;
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}
.filters select, .filters input[type="search"] {
    padding: 0.4rem 0.6rem;
    border-radius: 0.375rem;
    border: 1px solid var(--border);
    background: var(--surface2);
    color: var(--text);
    font-size: 0.8rem;
}
.filters input[type="search"] { min-width: 200px; }

/* ── Stats ── */
.stats {
    padding: 1rem 1.5rem;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1rem 1.25rem;
    flex: 1;
    min-width: 180px;
}
.stat-card h3 { font-size: 0.75rem; color: var(--text2); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.5rem; }
.stat-nums { display: flex; gap: 1rem; font-size: 0.85rem; }
.stat-nums span { display: flex; align-items: center; gap: 0.25rem; }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot-pendiente { background: var(--pendiente); }
.dot-progreso { background: var(--progreso); }
.dot-completada { background: var(--completada); }

/* ── Kanban ── */
.kanban {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    padding: 1rem 1.5rem;
    min-height: 60vh;
}
@media (max-width: 900px) { .kanban { grid-template-columns: 1fr; } }

.kanban-col {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    display: flex;
    flex-direction: column;
    min-height: 200px;
}
.kanban-col-header {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 0.9rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.kanban-col-header .count {
    background: var(--surface2);
    padding: 0.15rem 0.5rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    color: var(--text2);
}
.kanban-cards { padding: 0.5rem; flex: 1; display: flex; flex-direction: column; gap: 0.5rem; }

/* ── Card ── */
.card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 0.75rem;
    cursor: pointer;
    transition: border-color 0.15s;
    text-decoration: none;
    color: var(--text);
    display: block;
}
.card:hover { border-color: var(--accent); }
.card-title { font-weight: 600; font-size: 0.875rem; margin-bottom: 0.4rem; }
.card-meta { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; }

.badge {
    padding: 0.15rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.7rem;
    font-weight: 600;
}
.badge-alta { background: rgba(239,68,68,0.2); color: var(--alta); }
.badge-media { background: rgba(245,158,11,0.2); color: var(--media); }
.badge-baja { background: rgba(34,197,94,0.2); color: var(--baja); }
.badge-sistemas { background: rgba(139,92,246,0.2); color: var(--sistemas); }
.badge-ia { background: rgba(236,72,153,0.2); color: var(--ia); }
.badge-telco { background: rgba(6,182,212,0.2); color: var(--telco); }
.badge-admin { background: rgba(249,115,22,0.2); color: var(--admin); }
.badge-fecha { background: rgba(100,116,139,0.2); color: var(--text2); }
.badge-tag { background: rgba(59,130,246,0.15); color: var(--accent); }

/* ── List view ── */
.list-view { padding: 1rem 1.5rem; }
.list-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border-radius: 0.75rem;
    overflow: hidden;
}
.list-table th {
    text-align: left;
    padding: 0.75rem 1rem;
    font-size: 0.75rem;
    color: var(--text2);
    text-transform: uppercase;
    border-bottom: 1px solid var(--border);
}
.list-table td {
    padding: 0.6rem 1rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
}
.list-table tr:hover { background: var(--surface2); }

/* ── Form ── */
.form-container {
    max-width: 700px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}
.form-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 2rem;
}
.form-card h2 { margin-bottom: 1.5rem; font-size: 1.25rem; }
.form-group { margin-bottom: 1.25rem; }
.form-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.85rem;
    color: var(--text2);
    font-weight: 500;
}
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 0.6rem 0.8rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    font-size: 0.9rem;
    font-family: inherit;
}
.form-group textarea { min-height: 100px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 500px) { .form-row { grid-template-columns: 1fr; } }
.form-actions { display: flex; gap: 0.75rem; margin-top: 1.5rem; }

/* ── Quick status change ── */
.quick-status {
    display: flex;
    gap: 0.25rem;
}
.quick-status form { display: inline; }
.quick-status button {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    color: var(--text);
    opacity: 0.4;
    transition: opacity 0.15s;
    padding: 0.2rem;
}
.quick-status button:hover { opacity: 1; }
.quick-status button.active { opacity: 1; }

/* ── List sorting & drag ── */
.sortable { cursor: pointer; white-space: nowrap; }
.sortable:hover { color: var(--accent); }
.sort-arrow { font-size: 0.7rem; }
.th-drag { width: 30px; }
.drag-handle {
    cursor: grab;
    text-align: center;
    color: var(--text2);
    font-size: 1rem;
    user-select: none;
    -webkit-user-select: none;
    width: 30px;
}
.drag-handle:hover { color: var(--accent); }
.row-dragging { opacity: 0.35; background: var(--surface2); }
.row-drag-over { box-shadow: 0 -2px 0 var(--accent) inset; }
.status-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    color: var(--text);
    opacity: 0.4;
    transition: opacity 0.15s;
    padding: 0.2rem;
}
.status-btn:hover { opacity: 1; }
.status-btn.active { opacity: 1; }

/* ── Drag & Drop ── */
.card[draggable] { cursor: grab; user-select: none; -webkit-user-select: none; touch-action: pan-y; }
.card.dragging { opacity: 0.35; transform: scale(0.96); }
.kanban-cards.drag-over {
    background: rgba(59,130,246,0.08);
    border-radius: 0.5rem;
    outline: 2px dashed var(--accent);
    outline-offset: -4px;
    min-height: 120px;
}
.touch-clone {
    position: fixed;
    z-index: 9999;
    pointer-events: none;
    opacity: 0.85;
    transform: rotate(2deg) scale(1.04);
    box-shadow: 0 12px 32px rgba(0,0,0,0.4);
}