/**
 * Tacto Management — Shell Styles v1.0
 * Layout: Sidebar fijo (220px) + Header + Content
 *
 * ┌─────────────────────────────────────────────────────────┐
 * │ SIDEBAR (220px)  │   HEADER (64px)                     │
 * │  Logo + Nav      ├─────────────────────────────────────│
 * │                  │   CONTENT (scroll)                  │
 * └──────────────────┴─────────────────────────────────────┘
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
    /* Primary teal */
    --ui-accent:        #0d9488;
    --ui-accent-light:  rgba(13, 148, 136, 0.10);
    --ui-accent-hover:  #0f766e;
    --ui-accent-text:   #ffffff;

    /* Status colors */
    --ui-success:       #059669;
    --ui-success-light: #d1fae5;
    --ui-success-text:  #065f46;
    --ui-warning:       #d97706;
    --ui-warning-light: #fef3c7;
    --ui-warning-text:  #92400e;
    --ui-danger:        #dc2626;
    --ui-danger-hover:  #b91c1c;
    --ui-danger-light:  #fee2e2;
    --ui-danger-text:   #991b1b;
    --ui-info:          #2563eb;
    --ui-info-light:    #dbeafe;
    --ui-info-text:     #1e40af;

    /* Backgrounds */
    --ui-bg-base:       #f8fafc;
    --ui-bg-surface:    #ffffff;
    --ui-bg-raised:     #f1f5f9;
    --ui-bg-sunken:     #f1f5f9;

    /* Borders */
    --ui-border:        #e2e8f0;
    --ui-border-subtle: #f1f5f9;

    /* Text */
    --ui-text-primary:   #0f172a;
    --ui-text-secondary: #475569;
    --ui-text-muted:     #94a3b8;

    /* Layout */
    --ui-sidebar-width:      220px;
    --ui-sidebar-width-mini: 64px;
    --ui-header-height:  64px;

    /* Radius */
    --ui-radius-sm:  0.375rem;
    --ui-radius-md:  0.5rem;
    --ui-radius-lg:  0.75rem;
    --ui-radius-xl:  1rem;

    /* Shadows */
    --ui-shadow-sm:  0 1px 2px rgba(0,0,0,0.05);
    --ui-shadow-md:  0 4px 12px rgba(0,0,0,0.08);
    --ui-shadow-lg:  0 8px 24px rgba(0,0,0,0.12);

    /* Transitions */
    --ui-transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);

}

/* ============================================================
   BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
[x-cloak] { display: none !important; }
a { text-decoration: none; color: inherit; }
img, svg { display: block; max-width: 100%; }
ul, ol { list-style: none; margin: 0; padding: 0; }
button { border: none; background: transparent; cursor: pointer; font: inherit; padding: 0; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    margin: 0;
    background-color: var(--ui-bg-base);
    color: var(--ui-text-primary);
    font-size: 14px;
    line-height: 1.5;
}

/* ============================================================
   SHELL LAYOUT
   ============================================================ */
.ui-shell {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* ── SIDEBAR ───────────────────────────────────────────── */
.ui-sidebar {
    width: var(--ui-sidebar-width);
    min-width: var(--ui-sidebar-width);
    height: 100vh;
    background: var(--ui-bg-surface);
    border-right: 1px solid var(--ui-border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 40;
    transition: width 240ms ease, min-width 240ms ease, transform 240ms ease, box-shadow 240ms ease;
    flex-shrink: 0;
}

.ui-sidebar::-webkit-scrollbar { width: 4px; }
.ui-sidebar::-webkit-scrollbar-track { background: transparent; }
.ui-sidebar::-webkit-scrollbar-thumb { background: var(--ui-border); border-radius: 2px; }

/* Sidebar logo area */
.ui-sidebar-logo {
    height: var(--ui-header-height);
    min-height: var(--ui-header-height);
    display: flex;
    align-items: center;
    padding: 0 1rem;
    border-bottom: 1px solid var(--ui-border);
    gap: 0.625rem;
    flex-shrink: 0;
}

.ui-sidebar-logo-icon {
    width: 36px;
    height: 36px;
    background: var(--ui-accent);
    border-radius: var(--ui-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ui-sidebar-logo-text {
    display: flex;
    flex-direction: column;
}

.ui-sidebar-logo-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--ui-text-primary);
    line-height: 1.2;
}

.ui-sidebar-logo-sub {
    font-size: 10px;
    font-weight: 500;
    color: var(--ui-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Sidebar section label */
.ui-sidebar-section {
    padding: 1.25rem 1rem 0.375rem;
    font-size: 10px;
    font-weight: 600;
    color: var(--ui-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* Sidebar nav */
.ui-sidebar-nav {
    padding: 0 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.ui-sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5rem 0.625rem;
    border-radius: var(--ui-radius-md);
    color: var(--ui-text-secondary);
    font-size: 13.5px;
    font-weight: 500;
    transition: background var(--ui-transition), color var(--ui-transition);
    cursor: pointer;
}

.ui-sidebar-nav-item:hover {
    background: var(--ui-bg-raised);
    color: var(--ui-text-primary);
}

.ui-sidebar-nav-item.active {
    background: var(--ui-accent);
    color: #ffffff;
}

.ui-sidebar-nav-item.active svg {
    opacity: 1;
}

.ui-sidebar-nav-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    opacity: 0.7;
}

.ui-sidebar-nav-item.active svg { opacity: 1; }

/* ── MAIN AREA (Header + Content) ─────────────────────── */
.ui-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

/* ── HEADER ────────────────────────────────────────────── */
.ui-header {
    height: var(--ui-header-height);
    min-height: var(--ui-header-height);
    background: var(--ui-bg-surface);
    border-bottom: 1px solid var(--ui-border);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    gap: 1rem;
    z-index: 30;
    flex-shrink: 0;
}

.ui-header-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 12px;
    font-weight: 600;
    color: var(--ui-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.ui-header-breadcrumb::before {
    content: '';
    width: 3px;
    height: 18px;
    background: var(--ui-accent);
    border-radius: 2px;
}

.ui-header-spacer { flex: 1; }

.ui-header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ui-header-icon-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--ui-radius-md);
    color: var(--ui-text-secondary);
    transition: background var(--ui-transition), color var(--ui-transition);
    cursor: pointer;
    position: relative;
}

.ui-header-icon-btn:hover {
    background: var(--ui-bg-raised);
    color: var(--ui-text-primary);
}

.ui-header-divider {
    width: 1px;
    height: 24px;
    background: var(--ui-border);
    margin: 0 0.25rem;
}

/* User info in header */
.ui-header-user {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.375rem 0.5rem;
    border-radius: var(--ui-radius-md);
    transition: background var(--ui-transition);
}

.ui-header-user:hover { background: var(--ui-bg-raised); }

.ui-header-user-info {
    text-align: right;
}

.ui-header-user-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--ui-text-primary);
    line-height: 1.2;
}

.ui-header-user-role {
    font-size: 11px;
    color: var(--ui-text-muted);
}

.ui-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--ui-accent);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}

/* Notification badge */
.ui-badge-dot {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 8px;
    height: 8px;
    background: var(--ui-danger);
    border-radius: 50%;
    border: 2px solid var(--ui-bg-surface);
}

/* ── CONTENT ───────────────────────────────────────────── */
.ui-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 2rem 2rem;
}

.ui-content::-webkit-scrollbar { width: 6px; }
.ui-content::-webkit-scrollbar-track { background: transparent; }
.ui-content::-webkit-scrollbar-thumb { background: var(--ui-border); border-radius: 3px; }

/* ============================================================
   PAGE TITLES
   ============================================================ */
.ui-page-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--ui-text-primary);
    line-height: 1.2;
    margin: 0 0 0.25rem;
}

.ui-page-subtitle {
    font-size: 14px;
    color: var(--ui-text-muted);
    margin: 0 0 2rem;
}

/* ============================================================
   KPI CARDS (dashboard colored cards)
   ============================================================ */
.ui-kpi-card {
    background: var(--ui-bg-surface);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-xl);
    padding: 1.25rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    color: var(--ui-text-primary);
    box-shadow: var(--ui-shadow-sm);
    transition: border-color var(--ui-transition), box-shadow var(--ui-transition);
}

a.ui-kpi-card:hover {
    border-color: var(--ui-accent);
    box-shadow: var(--ui-shadow-md);
}

.ui-kpi-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--ui-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: var(--ui-bg-raised);
    color: var(--ui-text-secondary);
}

/* El color de la variante vive SOLO en el chip del icono */
.ui-kpi-card--teal   .ui-kpi-icon { background: var(--ui-accent-light);  color: var(--ui-accent); }
.ui-kpi-card--green  .ui-kpi-icon { background: var(--ui-success-light); color: var(--ui-success); }
.ui-kpi-card--blue   .ui-kpi-icon { background: var(--ui-info-light);    color: var(--ui-info); }
.ui-kpi-card--orange .ui-kpi-icon { background: var(--ui-warning-light); color: var(--ui-warning); }
.ui-kpi-card--red    .ui-kpi-icon { background: var(--ui-danger-light);  color: var(--ui-danger); }
.ui-kpi-card--purple .ui-kpi-icon { background: var(--ui-purple-light);  color: var(--ui-purple); }

.ui-kpi-body { flex: 1; min-width: 0; }

.ui-kpi-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--ui-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin: 0;
}

.ui-kpi-value {
    font-size: 26px;
    font-weight: 800;
    line-height: 1.2;
    color: var(--ui-text-primary);
    margin: 2px 0 0;
}

.ui-kpi-trend {
    font-size: 12px;
    font-weight: 500;
    margin-top: 0.25rem;
    color: var(--ui-text-muted);
}

/* ============================================================
   CARDS
   ============================================================ */
.ui-card {
    background: var(--ui-bg-surface);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-xl);
    padding: 1.5rem;
    box-shadow: var(--ui-shadow-sm);
}

.ui-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.ui-card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--ui-text-primary);
    margin: 0 0 0.125rem;
}

.ui-card-subtitle {
    font-size: 12px;
    color: var(--ui-text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.ui-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--ui-radius-md);
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--ui-transition), box-shadow var(--ui-transition), opacity var(--ui-transition);
    white-space: nowrap;
    border: none;
}

.ui-btn--primary {
    background: var(--ui-accent);
    color: white;
}
.ui-btn--primary:hover { background: var(--ui-accent-hover); }

.ui-btn--secondary {
    background: var(--ui-bg-raised);
    color: var(--ui-text-primary);
    border: 1px solid var(--ui-border);
}
.ui-btn--secondary:hover { background: var(--ui-border); }

.ui-btn--danger {
    background: var(--ui-danger);
    color: white;
}
.ui-btn--danger:hover { background: var(--ui-danger-hover); }

.ui-btn--ghost {
    background: transparent;
    color: var(--ui-text-secondary);
}
.ui-btn--ghost:hover { background: var(--ui-bg-raised); color: var(--ui-text-primary); }

.ui-btn--sm { padding: 0.375rem 0.75rem; font-size: 12.5px; }
.ui-btn--lg { padding: 0.75rem 1.5rem; font-size: 15px; }

.ui-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Icon-only button */
.ui-btn-icon {
    width: 34px;
    height: 34px;
    padding: 0;
    border-radius: var(--ui-radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--ui-bg-raised);
    color: var(--ui-text-secondary);
    border: 1px solid var(--ui-border);
    cursor: pointer;
    transition: background var(--ui-transition);
}
.ui-btn-icon:hover { background: var(--ui-border); color: var(--ui-text-primary); }

/* ============================================================
   BADGES / STATUS PILLS
   ============================================================ */
.ui-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.ui-badge--green  { background: var(--ui-success-light); color: var(--ui-success-text); }
.ui-badge--red    { background: var(--ui-danger-light);  color: var(--ui-danger-text); }
.ui-badge--yellow { background: var(--ui-warning-light); color: var(--ui-warning-text); }
.ui-badge--blue   { background: var(--ui-info-light);    color: var(--ui-info-text); }
.ui-badge--gray   { background: var(--ui-bg-raised);     color: var(--ui-text-secondary); border: 1px solid var(--ui-border); }
.ui-badge--teal   { background: var(--ui-accent-light);  color: var(--ui-accent); }

/* Service badges */
.ui-badge--to         { background: #ccfbf1; color: #065f46; }
.ui-badge--pedagogia  { background: #e0e7ff; color: #3730a3; }
.ui-badge--logopedia  { background: #fce7f3; color: #9d174d; }

/* ============================================================
   TABLES
   ============================================================ */
.ui-table-wrap {
    overflow-x: auto;
    border-radius: var(--ui-radius-lg);
    border: 1px solid var(--ui-border);
}

/* Tabla embebida en card: sin doble marco, esquinas inferiores siguiendo el card */
.ui-card .ui-table-wrap {
    border: none;
    border-radius: 0 0 calc(var(--ui-radius-xl) - 1px) calc(var(--ui-radius-xl) - 1px);
}

.ui-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

.ui-table thead th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 11px;
    font-weight: 600;
    color: var(--ui-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: var(--ui-bg-raised);
    border-bottom: 1px solid var(--ui-border);
}

.ui-table tbody td {
    padding: 0.875rem 1rem;
    border-bottom: 1px solid var(--ui-border-subtle);
    color: var(--ui-text-primary);
    vertical-align: middle;
}

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

.ui-table tbody tr:hover td { background: var(--ui-bg-raised); }

/* ============================================================
   FORMS
   ============================================================ */
.ui-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--ui-text-secondary);
    margin-bottom: 0.375rem;
}

.ui-input,
.ui-select,
.ui-textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-md);
    background: var(--ui-bg-surface);
    color: var(--ui-text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: border-color var(--ui-transition), box-shadow var(--ui-transition);
    outline: none;
}

.ui-input:focus,
.ui-select:focus,
.ui-textarea:focus {
    border-color: var(--ui-accent);
    box-shadow: 0 0 0 3px var(--ui-accent-light);
}

.ui-input::placeholder,
.ui-textarea::placeholder { color: var(--ui-text-muted); }

.ui-input-group {
    position: relative;
}

.ui-input-group .ui-input { padding-left: 2.5rem; }

.ui-input-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--ui-text-muted);
    pointer-events: none;
}

/* ============================================================
   MODAL
   ============================================================ */
.ui-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.ui-modal {
    background: var(--ui-bg-surface);
    border-radius: var(--ui-radius-xl);
    box-shadow: var(--ui-shadow-lg);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 2rem;
}

.ui-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.ui-modal-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--ui-text-primary);
}

.ui-modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--ui-radius-md);
    color: var(--ui-text-muted);
    cursor: pointer;
    transition: background var(--ui-transition);
}
.ui-modal-close:hover { background: var(--ui-bg-raised); color: var(--ui-text-primary); }

/* ============================================================
   AVATAR CIRCLE
   ============================================================ */
.ui-avatar-sm {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--ui-accent);
    color: white;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 700;
    flex-shrink: 0;
}

/* ============================================================
   TIMELINE GRID (Terapeutas / Salas)
   ============================================================ */
.ui-timeline-wrap {
    overflow-x: auto;
    padding-bottom: 1rem;
}

.ui-timeline-header {
    display: grid;
    gap: 1px;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--ui-border);
    margin-bottom: 0.5rem;
}

.ui-timeline-row {
    background: var(--ui-bg-surface);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-lg);
    display: flex;
    align-items: stretch;
    margin-bottom: 0.625rem;
    overflow: hidden;
}

.ui-timeline-label {
    width: 160px;
    min-width: 160px;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.625rem;
    border-right: 1px solid var(--ui-border);
}

.ui-timeline-slots {
    flex: 1;
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(60px, 1fr);
    gap: 0;
    min-height: 60px;
}

.ui-timeline-slot {
    border-right: 1px solid var(--ui-border-subtle);
    padding: 4px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-height: 60px;
    cursor: pointer;
    transition: background var(--ui-transition);
}

.ui-timeline-slot:hover { background: var(--ui-accent-light); }
.ui-timeline-slot:last-child { border-right: none; }

.ui-session-chip {
    background: var(--ui-accent-light);
    border: 1px solid var(--ui-accent);
    border-radius: var(--ui-radius-sm);
    padding: 2px 6px;
    font-size: 10px;
    font-weight: 600;
    color: var(--ui-accent);
    cursor: pointer;
}

.ui-session-chip--to       { background: #ccfbf1; border-color: #0d9488; color: #065f46; }
.ui-session-chip--pedagogia{ background: #e0e7ff; border-color: #4f46e5; color: #3730a3; }
.ui-session-chip--logopedia{ background: #fce7f3; border-color: #ec4899; color: #9d174d; }

/* ============================================================
   CALENDAR
   ============================================================ */
.ui-calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
    background: var(--ui-border);
    border-radius: var(--ui-radius-lg);
    overflow: hidden;
}

.ui-calendar-day {
    background: var(--ui-bg-surface);
    min-height: 100px;
    padding: 0.5rem;
    position: relative;
}

.ui-calendar-day--today {
    border: 2px solid var(--ui-accent);
    background: rgba(13, 148, 136, 0.04);
}

.ui-calendar-day--other-month {
    background: var(--ui-bg-raised);
    opacity: 0.6;
}

.ui-calendar-day-num {
    font-size: 14px;
    font-weight: 500;
    color: var(--ui-text-primary);
    margin-bottom: 0.25rem;
}

.ui-calendar-dot {
    width: 6px;
    height: 6px;
    background: var(--ui-accent);
    border-radius: 50%;
    display: inline-block;
}

/* ============================================================
   WEEK GRID (Centros)
   ============================================================ */
.ui-week-grid {
    display: grid;
    grid-template-columns: 60px repeat(5, 1fr);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-lg);
    overflow: hidden;
    background: var(--ui-border);
    gap: 1px;
}

.ui-week-grid-cell {
    background: var(--ui-bg-surface);
    padding: 0.375rem 0.5rem;
    min-height: 48px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.ui-week-grid-header {
    background: var(--ui-bg-raised);
    padding: 0.75rem 0.5rem;
    text-align: center;
    font-size: 12px;
    font-weight: 700;
    color: var(--ui-text-secondary);
}

.ui-week-grid-hour {
    background: var(--ui-bg-raised);
    padding: 0.5rem;
    text-align: right;
    font-size: 11px;
    color: var(--ui-text-muted);
    font-weight: 500;
}

.ui-center-slot {
    border-radius: var(--ui-radius-sm);
    padding: 2px 6px;
    font-size: 10px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
}

.ui-center-slot--free   { background: #0d9488; color: white; }
.ui-center-slot--busy   { background: #f59e0b; color: white; }
.ui-center-slot--full   { background: #ef4444; color: white; }

/* ============================================================
   TOASTS
   ============================================================ */
#ui-toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    pointer-events: none;
}

.ui-toast {
    background: var(--ui-bg-surface);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-lg);
    padding: 0.875rem 1rem;
    box-shadow: var(--ui-shadow-lg);
    font-size: 13.5px;
    font-weight: 500;
    color: var(--ui-text-primary);
    pointer-events: all;
    display: flex;
    align-items: center;
    gap: 0.625rem;
    max-width: 360px;
    animation: toastIn 200ms ease forwards;
}

.ui-toast--success { border-left: 3px solid var(--ui-success); }
.ui-toast--error   { border-left: 3px solid var(--ui-danger); }
.ui-toast--warning { border-left: 3px solid var(--ui-warning); }
.ui-toast--info    { border-left: 3px solid var(--ui-info); }

@keyframes toastIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   HELPERS
   ============================================================ */
.ui-divider {
    height: 1px;
    background: var(--ui-border);
    margin: 1rem 0;
}

.ui-row { display: flex; align-items: center; gap: 0.75rem; }
.ui-col { display: flex; flex-direction: column; gap: 0.5rem; }

.ui-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.ui-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.ui-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }

@media (max-width: 1200px) {
    .ui-grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
    .ui-grid-3 { grid-template-columns: repeat(2, 1fr); }
}

/* ── Sidebar colapsado en desktop: versión mini (solo iconos) ── */
@media (min-width: 769px) {
    .ui-sidebar.sidebar-collapsed {
        width: var(--ui-sidebar-width-mini);
        min-width: var(--ui-sidebar-width-mini);
        overflow-x: hidden;
    }
    .ui-sidebar.sidebar-collapsed .ui-sidebar-logo-text,
    .ui-sidebar.sidebar-collapsed .ui-sidebar-nav-label { display: none; }
    .ui-sidebar.sidebar-collapsed .ui-sidebar-logo { justify-content: center; padding: 0; }
    .ui-sidebar.sidebar-collapsed .ui-sidebar-nav-item {
        justify-content: center;
        padding: 0.625rem 0;
    }
    /* Títulos de sección → separador fino */
    .ui-sidebar.sidebar-collapsed .ui-sidebar-section {
        font-size: 0;
        padding: 0;
        margin: 0.5rem 0.75rem;
        border-top: 1px solid var(--ui-border);
    }
}

/* ── Sidebar como overlay en móvil ────────────────────── */
@media (max-width: 768px) {
    .ui-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        width: var(--ui-sidebar-width) !important;
        min-width: var(--ui-sidebar-width) !important;
        transform: translateX(-100%);
        z-index: 50;
        box-shadow: none;
        overflow: hidden;
    }

    .ui-sidebar.sidebar-open {
        transform: translateX(0);
        box-shadow: var(--ui-shadow-lg);
        overflow-y: auto;
    }

    /* En móvil, sidebar-collapsed sigue siendo un overlay oculto */
    .ui-sidebar.sidebar-collapsed {
        width: var(--ui-sidebar-width) !important;
        min-width: var(--ui-sidebar-width) !important;
        overflow: hidden;
        border-right: 1px solid var(--ui-border);
    }

    .ui-main {
        width: 100%;
        min-width: 0;
    }

    .ui-content {
        padding: 1.25rem 1rem;
    }

    .ui-header {
        padding: 0 1rem;
        gap: 0.5rem;
    }
}

/* ── Grids en pantallas pequeñas ───────────────────────── */
@media (max-width: 640px) {
    .ui-grid-4, .ui-grid-3, .ui-grid-2 { grid-template-columns: 1fr; }
}

/* ── Header search en pantallas muy pequeñas ───────────── */
@media (max-width: 480px) {
    .ui-header-search-box {
        max-width: 160px !important;
    }
}

/* ── Grids anchos con scroll horizontal en móvil ────────── */
.ui-week-grid-wrap { overflow: hidden; }
@media (max-width: 768px) {
    .ui-week-grid { min-width: 640px; }
    .ui-week-grid-wrap { overflow-x: auto; }

    .ui-timeline-row { overflow-x: auto; }
    .ui-timeline-slots { min-width: 600px; }
    .ui-timeline-label { width: 120px; min-width: 120px; }
}

/* Empty state */
.ui-empty {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--ui-text-muted);
}

.ui-empty-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 1rem;
    opacity: 0.4;
}

/* Progress bar */
.ui-progress {
    height: 8px;
    background: var(--ui-bg-raised);
    border-radius: 999px;
    overflow: hidden;
}

.ui-progress-bar {
    height: 100%;
    border-radius: 999px;
    transition: width 0.3s ease;
}

.ui-progress-bar--green  { background: var(--ui-success); }
.ui-progress-bar--blue   { background: var(--ui-info); }
.ui-progress-bar--orange { background: var(--ui-warning); }

/* Tab pills */
.ui-tabs {
    display: flex;
    gap: 0.25rem;
    border-bottom: 1px solid var(--ui-border);
    padding-bottom: 0;
    margin-bottom: 1.5rem;
}

.ui-tab {
    padding: 0.5rem 1rem;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--ui-text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: color var(--ui-transition), border-color var(--ui-transition);
    border-radius: var(--ui-radius-sm) var(--ui-radius-sm) 0 0;
}

.ui-tab:hover { color: var(--ui-text-primary); }
.ui-tab.active { color: var(--ui-accent); border-bottom-color: var(--ui-accent); }

/* Spinner */
.ui-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--ui-border);
    border-top-color: var(--ui-accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* Alert */
.ui-alert {
    padding: 0.875rem 1rem;
    border-radius: var(--ui-radius-md);
    border: 1px solid;
    font-size: 13.5px;
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
}

.ui-alert--success { background: var(--ui-success-light); border-color: var(--ui-success); color: var(--ui-success-text); }
.ui-alert--error   { background: var(--ui-danger-light);  border-color: var(--ui-danger);  color: var(--ui-danger-text); }
.ui-alert--warning { background: var(--ui-warning-light); border-color: var(--ui-warning); color: var(--ui-warning-text); }
.ui-alert--info    { background: var(--ui-info-light);    border-color: var(--ui-info);    color: var(--ui-info-text); }

/* Dropdown */
.ui-dropdown {
    position: relative;
}

.ui-dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    background: var(--ui-bg-surface);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-lg);
    box-shadow: var(--ui-shadow-lg);
    min-width: 180px;
    z-index: 200;
    overflow: hidden;
}

.ui-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    font-size: 13.5px;
    color: var(--ui-text-primary);
    cursor: pointer;
    transition: background var(--ui-transition);
}

.ui-dropdown-item:hover { background: var(--ui-bg-raised); }
.ui-dropdown-item--danger { color: var(--ui-danger); }
.ui-dropdown-item--danger:hover { background: var(--ui-danger-light); }

.ui-dropdown-divider { height: 1px; background: var(--ui-border); margin: 0.25rem 0; }