/* =====================================================
   FARMACIA CONTROL — DESIGN SYSTEM
   Paleta: Azul Médico + Verde Salud + Fondo Oscuro Premium
   ===================================================== */

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

/* ─── TOKENS ─── */
:root {
    --hue-primary:   215;
    --hue-success:   158;
    --hue-warning:    38;
    --hue-danger:      0;

    --primary:       hsl(var(--hue-primary), 90%, 58%);
    --primary-glow:  hsl(var(--hue-primary), 90%, 58%, 0.25);
    --primary-dark:  hsl(var(--hue-primary), 70%, 42%);

    --success:       hsl(var(--hue-success), 72%, 48%);
    --success-glow:  hsl(var(--hue-success), 72%, 48%, 0.2);
    --warning:       hsl(var(--hue-warning), 90%, 55%);
    --warning-glow:  hsl(var(--hue-warning), 90%, 55%, 0.2);
    --danger:        hsl(var(--hue-danger), 78%, 58%);
    --danger-glow:   hsl(var(--hue-danger), 78%, 58%, 0.2);

    /* Fondos */
    --bg-base:       hsl(220, 20%, 8%);
    --bg-surface:    hsl(220, 18%, 12%);
    --bg-elevated:   hsl(220, 16%, 16%);
    --bg-hover:      hsl(220, 14%, 20%);

    /* Textos */
    --text-primary:  hsl(220, 15%, 95%);
    --text-muted:    hsl(220, 10%, 55%);
    --text-subtle:   hsl(220, 10%, 38%);

    /* Bordes */
    --border:        hsl(220, 15%, 20%);
    --border-light:  hsl(220, 15%, 25%);

    /* Espaciado */
    --radius-sm:     6px;
    --radius-md:     10px;
    --radius-lg:     16px;
    --radius-xl:     24px;

    /* Sombras */
    --shadow-sm:     0 2px 8px hsl(0, 0%, 0%, 0.3);
    --shadow-md:     0 4px 24px hsl(0, 0%, 0%, 0.4);
    --shadow-lg:     0 8px 40px hsl(0, 0%, 0%, 0.5);

    /* Sidebar */
    --sidebar-width: 240px;
}

/* ─── RESET & BASE ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 15px; }

h1, h2, h3, h4, h5, h6, p {
    margin-block: 1lh; /* Regla Ecosistema 2026 para ritmo vertical perfecto */
}

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--bg-base);
    color: var(--text-primary);
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
button { cursor: pointer; font-family: inherit; border: none; outline: none; }
input, select { font-family: inherit; outline: none; }
svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ─── SIDEBAR ─── */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 16px 18px;
    border-bottom: 1px solid var(--border);
}

.brand-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--primary), hsl(var(--hue-success), 72%, 48%));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px var(--primary-glow);
    flex-shrink: 0;
}
.brand-icon svg { color: white; width: 20px; height: 20px; }

.brand-name {
    display: block;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}
.brand-version { font-size: 0.72rem; color: var(--text-muted); font-weight: 500; }

/* Selector de farmacia */
.sidebar-selector {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
}
.selector-label {
    display: block;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-subtle);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 7px;
}
.farmacia-select {
    width: 100%;
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 7px 10px;
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    transition: border-color 0.2s;
}
.farmacia-select:focus { border-color: var(--primary); }

/* Navegación */
.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 12px 10px;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: all 0.2s ease;
    position: relative;
}
.nav-item svg { transition: color 0.2s; }
.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}
.nav-item.active {
    background: linear-gradient(135deg, hsl(var(--hue-primary), 90%, 58%, 0.15), hsl(var(--hue-primary), 90%, 58%, 0.08));
    color: var(--primary);
    border: 1px solid hsl(var(--hue-primary), 90%, 58%, 0.2);
}
.nav-item.active svg { color: var(--primary); }

/* Footer sidebar */
.sidebar-footer { padding: 14px 16px; border-top: 1px solid var(--border); }
.connection-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    color: var(--text-muted);
}
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-subtle);
    transition: background 0.3s;
}
.status-dot.connected { background: var(--success); box-shadow: 0 0 8px var(--success-glow); }
.status-dot.error { background: var(--danger); }

/* ─── MAIN CONTENT ─── */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: var(--bg-base);
}

/* ─── HEADER ─── */
.top-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 28px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-surface);
    position: sticky;
    top: 0;
    z-index: 50;
}
.top-header h1 {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}
.page-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}
.header-right { display: flex; align-items: center; gap: 12px; }

.user-badge {
    display: flex;
    align-items: center;
    gap: 7px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 7px 12px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--primary);
}
.user-badge svg { width: 16px; height: 16px; }

.date-badge {
    display: flex;
    align-items: center;
    gap: 7px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 7px 12px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-muted);
}
.refresh-btn {
    width: 36px;
    height: 36px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all 0.2s;
}
.refresh-btn:hover { color: var(--primary); border-color: var(--primary); }
.refresh-btn.spinning svg { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.logout-btn {
    width: 36px;
    height: 36px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all 0.2s;
    cursor: pointer;
}
.logout-btn:hover { color: var(--danger); border-color: var(--danger); }

/* ─── VIEWS ─── */
.view { display: none; padding: 24px 28px; flex-direction: column; gap: 20px; }
.view.active { display: flex; }

/* ─── KPI CARDS ─── */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
.kpi-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
    overflow: hidden;
}
.kpi-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.kpi-primary::before { background: var(--primary); }
.kpi-success::before { background: var(--success); }
.kpi-warning::before { background: var(--warning); }
.kpi-money::before   { background: linear-gradient(90deg, var(--primary), var(--success)); }

.kpi-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.kpi-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.kpi-primary .kpi-icon { background: var(--primary-glow); color: var(--primary); }
.kpi-success .kpi-icon { background: var(--success-glow); color: var(--success); }
.kpi-warning .kpi-icon { background: var(--warning-glow); color: var(--warning); }
.kpi-money   .kpi-icon { background: var(--primary-glow); color: var(--primary); }

.kpi-value {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1;
}
.kpi-label {
    display: block;
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 4px;
    font-weight: 500;
}

/* ─── SECTION CARDS ─── */
.section-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}
.section-title {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}
.section-title svg { color: var(--primary); }
.badge-count {
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: 3px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
}

/* ─── TABLAS ─── */
.table-wrapper { overflow-x: auto; }
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.84rem;
}
.data-table thead th {
    padding: 12px 16px;
    text-align: left;
    font-size: 0.74rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-subtle);
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
.data-table tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background 0.15s;
}
.data-table tbody tr:last-child { border-bottom: none; }
.data-table tbody tr:hover { background: var(--bg-elevated); }
.data-table tbody td {
    padding: 11px 16px;
    color: var(--text-primary);
    vertical-align: middle;
}
.loading-cell {
    text-align: center;
    color: var(--text-muted);
    padding: 32px 16px !important;
}

/* Badges de tipo movimiento */
.badge-tipo {
    display: inline-flex;
    align-items: center;
    padding: 3px 9px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.badge-INGRESO    { background: hsl(158, 72%, 48%, 0.15); color: var(--success); border: 1px solid hsl(158, 72%, 48%, 0.3); }
.badge-SALIDA     { background: hsl(215, 90%, 58%, 0.15); color: var(--primary); border: 1px solid hsl(215, 90%, 58%, 0.3); }
.badge-MERMA      { background: hsl(0, 78%, 58%, 0.15);   color: var(--danger);  border: 1px solid hsl(0, 78%, 58%, 0.3); }
.badge-CORRECCION { background: hsl(38, 90%, 55%, 0.15);  color: var(--warning); border: 1px solid hsl(38, 90%, 55%, 0.3); }

.badge-NORMAL     { background: hsl(158, 72%, 48%, 0.12); color: var(--success); }
.badge-STOCK_BAJO { background: hsl(38,  90%, 55%, 0.12); color: var(--warning); }
.badge-SIN_STOCK  { background: hsl(0,   78%, 58%, 0.12); color: var(--danger);  }

/* ─── TOOLBAR ─── */
.view-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}
.search-box {
    display: flex;
    align-items: center;
    gap: 9px;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 8px 14px;
    flex: 1;
    min-width: 220px;
    transition: border-color 0.2s;
}
.search-box:focus-within { border-color: var(--primary); }
.search-box svg { color: var(--text-subtle); flex-shrink: 0; }
.search-box input {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 0.86rem;
    width: 100%;
}
.search-box input::placeholder { color: var(--text-subtle); }

.filter-tabs { display: flex; gap: 6px; }
.filter-tab {
    padding: 7px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    color: var(--text-muted);
    transition: all 0.2s;
}
.filter-tab.active { background: var(--primary); border-color: var(--primary); color: white; }
.filter-tab:hover:not(.active) { border-color: var(--primary); color: var(--primary); }

.date-input {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 7px 12px;
    font-size: 0.84rem;
    font-weight: 500;
    color-scheme: dark;
    transition: border-color 0.2s;
}
.date-input:focus { border-color: var(--primary); }

/* ─── ALERTAS de stock ─── */
.alerta-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    transition: background 0.15s;
}
.alerta-item:last-child { border-bottom: none; }
.alerta-item:hover { background: var(--bg-elevated); }
.alerta-info { display: flex; flex-direction: column; gap: 3px; }
.alerta-nombre { font-weight: 600; font-size: 0.9rem; }
.alerta-sub { font-size: 0.78rem; color: var(--text-muted); }
.alerta-stock { display: flex; align-items: center; gap: 10px; }
.alerta-numero { font-size: 1.3rem; font-weight: 800; }
.SIN_STOCK  { color: var(--danger); }
.STOCK_BAJO { color: var(--warning); }

/* ─── EMPTY STATE ─── */
.empty-state {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px;
    font-size: 0.88rem;
    color: var(--text-muted);
}

/* ─── CIERRE DE TURNO ─── */
.cierre-container { display: flex; flex-direction: column; gap: 20px; }
.cierre-selector {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
}
.cierre-selector label {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-muted);
}
.btn-primary {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--primary), hsl(var(--hue-primary), 80%, 48%));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    padding: 10px 18px;
    font-size: 0.88rem;
    font-weight: 700;
    transition: all 0.2s;
    box-shadow: 0 4px 14px var(--primary-glow);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px var(--primary-glow); }

.cierre-kpis {
    display: grid;
    grid-template-columns: 1fr 40px 1fr 40px 1fr;
    gap: 12px;
    align-items: center;
}
.cierre-kpi {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: transform 0.2s;
}
.cierre-kpi:hover { transform: translateY(-2px); }
.cierre-ingreso { border-top: 3px solid var(--success); }
.cierre-salida  { border-top: 3px solid var(--danger); }
.cierre-saldo   { border-top: 3px solid var(--primary); }
.cierre-label {
    display: block;
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 8px;
}
.cierre-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.04em;
}
.cierre-ingreso .cierre-value { color: var(--success); }
.cierre-salida  .cierre-value { color: var(--danger); }
.cierre-saldo   .cierre-value { color: var(--primary); }
.cierre-calcular { display: flex; align-items: center; justify-content: center; color: var(--text-subtle); }

/* ─── TOAST NOTIFICATIONS ─── */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 999;
}
.toast {
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 12px 18px;
    font-size: 0.84rem;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
    max-width: 300px;
}
.toast.success { border-left: 3px solid var(--success); }
.toast.error   { border-left: 3px solid var(--danger); }
.toast.info    { border-left: 3px solid var(--primary); }
@keyframes slideIn {
    from { opacity: 0; transform: translateX(20px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ─── BOTÓN SECUNDARIO ─── */
.btn-secondary {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 9px 16px;
    font-size: 0.86rem;
    font-weight: 600;
    transition: all 0.2s;
    white-space: nowrap;
}
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); }

.btn-success {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--success), hsl(var(--hue-success), 60%, 40%));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    padding: 10px 18px;
    font-size: 0.88rem;
    font-weight: 700;
    transition: all 0.2s;
    box-shadow: 0 4px 14px var(--success-glow);
}
.btn-success:hover { transform: translateY(-1px); box-shadow: 0 6px 20px var(--success-glow); }
.btn-success:disabled, .btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* ─── MODALES ─── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: hsl(220, 20%, 4%, 0.75);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 500;
    padding: 20px;
    animation: fadeIn 0.2s ease;
}
.modal-overlay.hidden { display: none; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.25s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--border);
}
.modal-title {
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 9px;
}
.modal-title svg { color: var(--primary); }
.modal-close {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}
.modal-close:hover { color: var(--danger); border-color: var(--danger); }

.modal-body { padding: 20px 24px; display: flex; flex-direction: column; gap: 16px; }

.modal-footer {
    padding: 16px 24px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Campos de formulario */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.form-group label .required { color: var(--danger); margin-left: 2px; }

.form-input, .form-select, .form-textarea {
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 9px 12px;
    font-size: 0.88rem;
    font-family: inherit;
    transition: border-color 0.2s;
    width: 100%;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--primary);
    outline: none;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-subtle); }
.form-select { cursor: pointer; color-scheme: dark; }
.form-textarea { resize: vertical; min-height: 72px; }
.form-input[type="date"] { color-scheme: dark; }
#prod-stock-extra { display: none; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.form-divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 4px 0;
}

.form-hint {
    font-size: 0.75rem;
    color: var(--text-subtle);
    margin-top: 2px;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
    .cierre-kpis { grid-template-columns: 1fr; }
    .cierre-calcular { display: none; }
}
@media (max-width: 640px) {
    .sidebar { transform: translateX(-100%); }
    .main-content { margin-left: 0; }
    .kpi-grid { grid-template-columns: 1fr; }
}