/* Khipu — Gestion de Proyectos TI */
:root {
    --bg-primary: #0f1923;
    --bg-secondary: #1a2735;
    --bg-card: #1e2d3d;
    --bg-hover: #243447;
    --border: #263545;
    --text-primary: #e0e0e0;
    --text-secondary: #90a4ae;
    --accent: #42a5f5;
    --accent-dark: #1565c0;
    --success: #4caf50;
    --warning: #ff9800;
    --danger: #f44336;
    --purple: #7c4dff;
    --sidebar-width: 240px;
    --header-height: 56px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; background: var(--bg-primary); color: var(--text-primary); font-size: 14px; line-height: 1.5; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Auth */
.auth-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.auth-card { background: var(--bg-secondary); border-radius: 12px; padding: 40px; width: 100%; max-width: 400px; text-align: center; box-shadow: 0 8px 32px rgba(0,0,0,0.3); }
.auth-card h1 { font-size: 28px; margin-top: 12px; color: #fff; }
.auth-subtitle { color: var(--text-secondary); margin-bottom: 24px; }
.auth-logo .logo-icon { width: 56px; height: 56px; background: linear-gradient(135deg, var(--accent-dark), var(--accent)); border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; font-size: 28px; color: #fff; font-weight: 700; }
.auth-card .form-group { text-align: left; margin-bottom: 16px; }

/* Sidebar */
.sidebar { position: fixed; top: 0; left: 0; width: var(--sidebar-width); height: 100vh; background: var(--bg-secondary); border-right: 1px solid var(--border); display: flex; flex-direction: column; z-index: 100; transition: width 0.2s; overflow-x: hidden; }
.sidebar.collapsed { width: 56px; }
.sidebar.collapsed .logo-text, .sidebar.collapsed .nav-label, .sidebar.collapsed .nav-link span:not(.nav-icon),
.sidebar.collapsed .user-info div, .sidebar.collapsed .logout-link span { display: none; }
.sidebar-header { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.logo { display: flex; align-items: center; gap: 8px; color: #fff; font-weight: 700; font-size: 18px; }
.logo:hover { text-decoration: none; }
.logo-icon { width: 32px; height: 32px; background: linear-gradient(135deg, var(--accent-dark), var(--accent)); border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; font-size: 16px; color: #fff; flex-shrink: 0; }
.sidebar-toggle { background: none; border: none; color: var(--text-secondary); cursor: pointer; padding: 4px; }
.sidebar-nav { flex: 1; overflow-y: auto; padding: 8px 0; }
.nav-section { margin-bottom: 8px; }
.nav-label { display: block; padding: 8px 16px 4px; font-size: 11px; text-transform: uppercase; color: var(--text-secondary); letter-spacing: 0.5px; }
.nav-link { display: flex; align-items: center; gap: 10px; padding: 8px 16px; color: var(--text-secondary); font-size: 13px; transition: all 0.15s; white-space: nowrap; }
.nav-link:hover { background: var(--bg-hover); color: var(--text-primary); text-decoration: none; }
.nav-link svg { flex-shrink: 0; }
.sidebar-footer { border-top: 1px solid var(--border); padding: 12px 16px; }
.user-info { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.user-avatar { width: 32px; height: 32px; background: var(--accent-dark); color: #fff; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-weight: 600; font-size: 14px; flex-shrink: 0; }
.user-info strong { display: block; font-size: 13px; color: var(--text-primary); }
.user-info small { font-size: 11px; color: var(--text-secondary); text-transform: uppercase; }
.logout-link { color: var(--text-secondary) !important; font-size: 12px; }

/* Main */
.main-content { margin-left: var(--sidebar-width); min-height: 100vh; }
.main-header { display: flex; align-items: center; justify-content: space-between; padding: 12px 24px; border-bottom: 1px solid var(--border); background: var(--bg-secondary); height: var(--header-height); position: sticky; top: 0; z-index: 50; }
.main-header h1 { font-size: 18px; font-weight: 600; color: #fff; }
.header-actions { display: flex; gap: 8px; }
.content { padding: 20px 24px; }

/* Cards */
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 20px; }
.card h3 { font-size: 16px; margin-bottom: 12px; color: #fff; }
.card h4 { font-size: 14px; margin: 12px 0 6px; color: var(--text-primary); }

/* Stats Grid */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.stat-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 16px; text-align: center; }
.stat-label { display: block; font-size: 12px; color: var(--text-secondary); margin-bottom: 4px; }
.stat-value { display: block; font-size: 28px; font-weight: 700; color: #fff; }
.stat-blue .stat-value { color: var(--accent); }
.stat-green .stat-value { color: var(--success); }
.stat-red .stat-value { color: var(--danger); }
.stat-amber .stat-value { color: var(--warning); }
.stat-purple .stat-value { color: var(--purple); }

/* Grid */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 768px) { .grid-2 { grid-template-columns: 1fr; } }

/* Tables */
.table { width: 100%; border-collapse: collapse; }
.table th { text-align: left; padding: 8px 12px; border-bottom: 2px solid var(--border); color: var(--text-secondary); font-size: 12px; text-transform: uppercase; letter-spacing: 0.3px; }
.table td { padding: 8px 12px; border-bottom: 1px solid var(--border); }
.table tr:hover { background: var(--bg-hover); }
.table-sm th, .table-sm td { padding: 4px 8px; font-size: 13px; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 4px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 8px 12px; background: var(--bg-primary); border: 1px solid var(--border); border-radius: 6px; color: var(--text-primary); font-size: 14px; font-family: inherit; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); }
.form-group textarea { resize: vertical; }
.form-row { display: flex; gap: 12px; }
.form-row .form-group { flex: 1; }
.form-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 20px; }
.form-actions-vertical { display: flex; flex-direction: column; gap: 8px; }
.inline-form { display: flex; gap: 8px; align-items: center; }
.input-inline { flex: 1; padding: 8px 12px; background: var(--bg-primary); border: 1px solid var(--border); border-radius: 6px; color: var(--text-primary); }
.checkbox-list { display: flex; flex-direction: column; gap: 4px; max-height: 200px; overflow-y: auto; }
.checkbox-label { display: flex; align-items: center; gap: 6px; font-size: 13px; cursor: pointer; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg-card); color: var(--text-primary); font-size: 13px; font-weight: 500; cursor: pointer; transition: all 0.15s; text-decoration: none; white-space: nowrap; }
.btn:hover { background: var(--bg-hover); text-decoration: none; }
.btn-primary { background: linear-gradient(135deg, var(--accent-dark), var(--accent)); border: none; color: #fff; }
.btn-primary:hover { opacity: 0.9; }
.btn-secondary { background: var(--bg-secondary); }
.btn-success { background: var(--success); border: none; color: #fff; }
.btn-danger { background: var(--danger); border: none; color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-block { display: flex; justify-content: center; width: 100%; }

/* Badges */
.badge { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 12px; font-weight: 500; background: var(--bg-hover); }
.badge-sm { padding: 1px 6px; font-size: 11px; }
.badge-critical { background: var(--danger); color: #fff; animation: pulse 2s infinite; }
.badge-approved { background: var(--success); color: #fff; }
.badge-rejected { background: var(--danger); color: #fff; }
.badge-pending { background: var(--warning); color: #000; }
.badge-delegated { background: var(--purple); color: #fff; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.7; } }

/* Alerts */
.alert { padding: 10px 16px; border-radius: 6px; margin-bottom: 16px; font-size: 13px; }
.alert-success { background: #4caf5020; border: 1px solid var(--success); color: #a5d6a7; }
.alert-error { background: #f4433620; border: 1px solid var(--danger); color: #ef9a9a; }

/* Progress Bar */
.progress-bar { height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--accent); border-radius: 3px; transition: width 0.3s; }

/* Project Nav */
.project-nav { display: flex; gap: 4px; flex-wrap: wrap; }

/* Info Grid */
.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 8px; }
.info-label { display: block; font-size: 11px; color: var(--text-secondary); text-transform: uppercase; }

/* Filter Bar */
.filter-bar { display: flex; gap: 4px; margin-bottom: 16px; }

/* Empty State */
.empty-state { color: var(--text-secondary); font-style: italic; }
.empty-state-box { background: var(--bg-card); border: 1px dashed var(--border); border-radius: 8px; padding: 32px; text-align: center; }

/* Activity List */
.activity-list { display: flex; flex-direction: column; gap: 6px; }
.activity-item { display: flex; align-items: center; gap: 8px; padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.activity-item small { margin-left: auto; color: var(--text-secondary); }

/* Semaphore */
.semaphore-summary { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.semaphore-item { display: flex; align-items: center; gap: 6px; }

/* WBS Tree */
.wbs-tree { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; }
.wbs-item { border-bottom: 1px solid var(--border); }
.wbs-item:last-child { border-bottom: none; }
.wbs-item-row { display: flex; align-items: center; gap: 8px; padding: 8px 12px; }
.wbs-item-row:hover { background: var(--bg-hover); }
.wbs-type { display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 4px; font-size: 11px; font-weight: 700; color: #fff; flex-shrink: 0; }
.wbs-type-milestone { background: var(--purple); }
.wbs-type-task { background: var(--accent); }
.wbs-type-subtask { background: var(--text-secondary); }
.wbs-title { flex: 1; }
.wbs-title a { color: var(--text-primary); }
.wbs-title a:hover { color: var(--accent); }
.wbs-dates { font-size: 12px; color: var(--text-secondary); }
.wbs-progress { font-size: 12px; color: var(--text-secondary); }
.wbs-assigned { font-size: 12px; color: var(--accent); }
.wbs-slack { font-size: 11px; color: var(--text-secondary); background: var(--bg-primary); padding: 1px 6px; border-radius: 3px; }

/* Gantt Chart */
.gantt-container { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; overflow-x: auto; }
.gantt-header { display: flex; border-bottom: 2px solid var(--border); font-size: 12px; color: var(--text-secondary); text-transform: uppercase; padding: 8px 0; }
.gantt-label-col { width: 240px; min-width: 240px; padding: 0 12px; }
.gantt-bar-col { flex: 1; position: relative; min-width: 400px; min-height: 20px; }
.gantt-row { display: flex; align-items: center; border-bottom: 1px solid var(--border); min-height: 32px; }
.gantt-row:hover { background: var(--bg-hover); }
.gantt-bar { position: absolute; height: 16px; border-radius: 3px; top: 50%; transform: translateY(-50%); }
.gantt-bar-grey { background: #9e9e9e; }
.gantt-bar-green { background: var(--success); }
.gantt-bar-amber { background: var(--warning); }
.gantt-bar-red { background: var(--danger); }
.gantt-bar-critical { border: 2px solid #fff; box-shadow: 0 0 4px rgba(244,67,54,0.5); }
.gantt-bar-baseline { background: transparent; border: 2px dashed #78909c; height: 10px; opacity: 0.6; }
.gantt-progress { display: block; height: 100%; background: rgba(255,255,255,0.3); border-radius: 3px; }
.gantt-legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: 12px; color: var(--text-secondary); }
.legend-dot { display: inline-block; width: 12px; height: 12px; border-radius: 3px; vertical-align: middle; margin-right: 4px; }

/* Approval Timeline */
.approval-timeline { display: flex; flex-direction: column; gap: 12px; }
.approval-step { background: var(--bg-primary); border: 1px solid var(--border); border-radius: 6px; padding: 12px; }
.approval-step.approved { border-left: 3px solid var(--success); }
.approval-step.rejected { border-left: 3px solid var(--danger); }
.approval-step.pending { border-left: 3px solid var(--warning); }
.step-header { display: flex; align-items: center; gap: 8px; }
.step-number { display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; background: var(--accent-dark); color: #fff; border-radius: 50%; font-size: 12px; font-weight: 600; }
.step-comments { font-style: italic; color: var(--text-secondary); margin-top: 4px; }

/* Pagination */
.pagination { display: flex; gap: 4px; margin-top: 16px; justify-content: center; }

/* Responsive */
@media (max-width: 768px) {
    .sidebar { width: 56px; }
    .sidebar .logo-text, .sidebar .nav-label, .sidebar .user-info div { display: none; }
    .main-content { margin-left: 56px; }
    .content { padding: 12px; }
    .form-row { flex-direction: column; }
}