/* ===== KPI Analytics System - Main Stylesheet ===== */
:root {
    --sidebar-width: 260px;
    --header-height: 64px;
    --primary: #4f46e5;
    --primary-light: #818cf8;
    --primary-dark: #3730a3;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    --bg-main: #f3f4f6;
    --bg-card: #ffffff;
    --text-main: #111827;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.04);
    --shadow: 0 4px 6px -1px rgba(0,0,0,.06), 0 2px 4px -2px rgba(0,0,0,.05);
    --shadow-lg: 0 10px 25px -5px rgba(0,0,0,.08), 0 8px 10px -6px rgba(0,0,0,.05);
    --radius: 12px;
    --transition: all .25s cubic-bezier(.4,0,.2,1);
}

[data-bs-theme="dark"] {
    --bg-main: #0f172a;
    --bg-card: #1e293b;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --border: #334155;
}

* { -webkit-font-smoothing: antialiased; }
html, body { min-height: 100vh; }
body {
    font-family: 'Cairo', 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg-main);
    color: var(--text-main);
    transition: background .3s, color .3s;
}
.ltr-body { font-family: 'Inter', 'Cairo', system-ui, sans-serif; }

/* ===== Layout ===== */
.app-wrapper { display: flex; min-height: 100vh; }

/* Sidebar */
.app-sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
    color: #cbd5e1;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; bottom: 0;
    z-index: 1030;
    transition: transform .3s;
}
[dir="rtl"] .app-sidebar { right: 0; }
[dir="ltr"] .app-sidebar { left: 0; }
.app-sidebar.collapsed { transform: translateX(100%); }
[dir="ltr"] .app-sidebar.collapsed { transform: translateX(-100%); }

.sidebar-brand {
    padding: 1.25rem 1.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    display: flex;
    align-items: center;
    gap: .75rem;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.sidebar-brand i { color: var(--primary-light); font-size: 1.5rem; }

.sidebar-nav { flex: 1; overflow-y: auto; padding: 1rem 0; }
.sidebar-nav .nav-item {
    display: flex; align-items: center; gap: .75rem;
    padding: .75rem 1.5rem;
    color: #cbd5e1;
    text-decoration: none;
    transition: var(--transition);
    border: 0; background: transparent; width: 100%; text-align: inherit;
    font-size: .95rem;
}
.sidebar-nav .nav-item:hover { background: rgba(255,255,255,.06); color: #fff; }
.sidebar-nav .nav-item.active { background: rgba(79,70,229,.2); color: #fff; border-inline-start: 3px solid var(--primary-light); }
.sidebar-nav .nav-item i { font-size: 1.15rem; min-width: 24px; }

.nav-divider {
    padding: 1rem 1.5rem .5rem;
    font-size: .75rem;
    text-transform: uppercase;
    color: #64748b;
    letter-spacing: .05em;
    font-weight: 600;
}
.sidebar-footer { padding: 1rem 1.5rem; border-top: 1px solid rgba(255,255,255,.08); text-align: center; }

/* Main */
.app-main {
    flex: 1;
    margin-inline-start: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-width: 0;
    transition: margin .3s;
}
.sidebar-collapsed .app-main { margin-inline-start: 0; }

/* Header */
.app-header {
    height: var(--header-height);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    position: sticky; top: 0;
    z-index: 1020;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}
.header-title { font-size: 1.1rem; font-weight: 600; margin: 0; flex: 1; }
.header-actions { display: flex; align-items: center; gap: .5rem; }
.btn-icon {
    width: 40px; height: 40px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 8px; border: 0;
    background: transparent;
    color: var(--text-main);
    transition: var(--transition);
}
.btn-icon:hover { background: var(--bg-main); }
.badge-dot {
    position: absolute; top: 8px;
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--danger);
}
[dir="rtl"] .badge-dot { left: 8px; }
[dir="ltr"] .badge-dot { right: 8px; }

.user-menu {
    display: flex; align-items: center; gap: .5rem;
    padding: .25rem .75rem .25rem .25rem;
    border-radius: 999px; border: 1px solid var(--border);
    background: transparent;
    color: var(--text-main);
}
.user-menu:hover { background: var(--bg-main); }
.avatar, .avatar-sm {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700;
}
.avatar { width: 32px; height: 32px; font-size: .9rem; }
.avatar-sm { width: 28px; height: 28px; font-size: .8rem; }

/* Content */
.app-content { flex: 1; }
.app-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

/* Page Title */
.page-title { font-size: 1.5rem; font-weight: 700; margin: 0; display: flex; align-items: center; gap: .5rem; }
.page-title i { color: var(--primary); }

/* ===== Cards ===== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.card:hover { box-shadow: var(--shadow); }
.card-header {
    background: transparent;
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.25rem;
    font-weight: 600;
}
.card-title { font-size: 1rem; }

/* Filter Card */
.filter-card { box-shadow: var(--shadow); border: 0; }

/* ===== KPI Cards ===== */
.kpi-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.25rem;
    display: flex;
    gap: 1rem;
    box-shadow: var(--shadow);
    border-inline-start: 4px solid var(--primary);
    transition: var(--transition);
    height: 100%;
    position: relative;
    overflow: hidden;
}
.kpi-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.kpi-card::before {
    content: ''; position: absolute;
    inset-inline-end: -20px; top: -20px;
    width: 100px; height: 100px;
    border-radius: 50%;
    background: currentColor;
    opacity: .05;
}
.kpi-icon {
    width: 56px; height: 56px;
    border-radius: 12px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
    background: rgba(79,70,229,.1);
    color: var(--primary);
    flex-shrink: 0;
}
.kpi-content { flex: 1; min-width: 0; }
.kpi-label { color: var(--text-muted); font-size: .85rem; font-weight: 500; }
.kpi-value { font-size: 1.5rem; font-weight: 700; margin: .25rem 0; word-break: break-word; }
.kpi-sub { color: var(--text-muted); font-size: .8rem; }
.kpi-trend { font-size: .85rem; font-weight: 600; display: inline-flex; align-items: center; gap: .25rem; }
.kpi-trend.up { color: var(--success); }
.kpi-trend.down { color: var(--danger); }

.kpi-card-primary { border-color: var(--primary); color: var(--primary); }
.kpi-card-primary .kpi-icon { background: rgba(79,70,229,.1); color: var(--primary); }
.kpi-card-success { border-color: var(--success); color: var(--success); }
.kpi-card-success .kpi-icon { background: rgba(16,185,129,.1); color: var(--success); }
.kpi-card-warning { border-color: var(--warning); color: var(--warning); }
.kpi-card-warning .kpi-icon { background: rgba(245,158,11,.1); color: var(--warning); }
.kpi-card-info { border-color: var(--info); color: var(--info); }
.kpi-card-info .kpi-icon { background: rgba(6,182,212,.1); color: var(--info); }
.kpi-card-danger { border-color: var(--danger); color: var(--danger); }
.kpi-card-danger .kpi-icon { background: rgba(239,68,68,.1); color: var(--danger); }

/* Mini KPI */
.mini-kpi {
    background: var(--bg-card);
    padding: 1rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    text-align: center;
    height: 100%;
}
.mini-label { color: var(--text-muted); font-size: .8rem; }
.mini-value { font-size: 1.15rem; font-weight: 700; margin-top: .25rem; }

/* ===== Charts ===== */
.chart-card { min-height: 100%; }
.chart-card .card-body { padding: 1rem; }

/* ===== Insights ===== */
.insights-panel { max-height: 380px; overflow-y: auto; padding: 0; }
.insight-item {
    display: flex; gap: .75rem;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}
.insight-item:hover { background: var(--bg-main); }
.insight-item:last-child { border-bottom: 0; }
.insight-icon {
    width: 36px; height: 36px; border-radius: 8px;
    display: inline-flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    background: rgba(245,158,11,.1); color: var(--warning);
}
.insight-success .insight-icon { background: rgba(16,185,129,.1); color: var(--success); }
.insight-danger .insight-icon, .insight-warning .insight-icon { background: rgba(239,68,68,.1); color: var(--danger); }
.insight-info .insight-icon { background: rgba(6,182,212,.1); color: var(--info); }
.insight-title { font-weight: 600; font-size: .9rem; }
.insight-msg { color: var(--text-muted); font-size: .85rem; margin-top: .15rem; }

/* ===== Auth ===== */
.auth-body {
    min-height: 100vh;
    background: linear-gradient(135deg, #4f46e5 0%, #818cf8 50%, #06b6d4 100%);
    display: flex; align-items: center; justify-content: center;
    padding: 1rem;
    font-family: 'Cairo', 'Inter', sans-serif;
}
.auth-wrapper { width: 100%; max-width: 440px; }
.auth-card {
    background: rgba(255,255,255,.97);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,.25);
}
.auth-brand { text-align: center; margin-bottom: 2rem; }
.auth-brand i { font-size: 3rem; color: var(--primary); display: block; margin-bottom: .5rem; }
.auth-brand h2 { font-weight: 800; margin: 0; color: var(--text-main); }
.auth-form .form-control { padding: .75rem 1rem; }
.input-group-lg .input-group-text { background: #f8f9fa; border-color: var(--border); }

/* ===== Upload Zone ===== */
.upload-zone {
    border: 3px dashed var(--border);
    border-radius: var(--radius);
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-main);
}
.upload-zone:hover, .upload-zone.drag-over {
    border-color: var(--primary);
    background: rgba(79,70,229,.05);
    transform: scale(1.01);
}
.upload-icon { font-size: 4rem; color: var(--primary); margin-bottom: 1rem; }

/* ===== Report Cards ===== */
.report-card {
    display: flex; align-items: center; gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-main);
    text-decoration: none;
    transition: var(--transition);
    height: 100%;
    position: relative;
}
.report-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    color: var(--text-main);
}
.report-icon {
    width: 56px; height: 56px; border-radius: 12px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
    background: rgba(79,70,229,.1); color: var(--primary);
    flex-shrink: 0;
}
.report-card-success .report-icon { background: rgba(16,185,129,.1); color: var(--success); }
.report-card-warning .report-icon { background: rgba(245,158,11,.1); color: var(--warning); }
.report-card-info .report-icon { background: rgba(6,182,212,.1); color: var(--info); }
.report-card-danger .report-icon { background: rgba(239,68,68,.1); color: var(--danger); }
.report-card-secondary .report-icon { background: rgba(100,116,139,.1); color: #64748b; }
.report-body { flex: 1; }
.report-body h5 { margin: 0; }
.report-arrow { color: var(--text-muted); font-size: 1.5rem; }

/* ===== Company Cards ===== */
.company-card { transition: var(--transition); }
.company-card.active-company {
    border-color: var(--success);
    box-shadow: 0 0 0 3px rgba(16,185,129,.15);
}
.company-logo {
    width: 48px; height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    border-radius: 10px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 1.25rem;
}

/* ===== Tables ===== */
.table { color: var(--text-main); }
.table thead th { font-weight: 600; color: var(--text-muted); border-bottom-width: 1px; }
[data-bs-theme="dark"] .table { --bs-table-bg: transparent; --bs-table-color: var(--text-main); }
[data-bs-theme="dark"] .table-light { --bs-table-bg: #1e293b; --bs-table-color: var(--text-main); }

/* ===== Error Pages ===== */
.error-page {
    min-height: 60vh;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    text-align: center; padding: 2rem;
}
.error-code {
    font-size: 8rem; font-weight: 900;
    line-height: 1;
    background: linear-gradient(135deg, var(--primary), var(--info));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Buttons ===== */
.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
}
.btn-primary:hover, .btn-primary:focus {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

/* ===== Form ===== */
.form-control, .form-select {
    background: var(--bg-card);
    color: var(--text-main);
    border-color: var(--border);
}
.form-control:focus, .form-select:focus {
    background: var(--bg-card);
    color: var(--text-main);
    border-color: var(--primary);
    box-shadow: 0 0 0 .25rem rgba(79,70,229,.15);
}

/* Notifications dropdown */
.notifications-dropdown { min-width: 320px; max-height: 400px; overflow-y: auto; }

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
    .app-sidebar { transform: translateX(100%); }
    [dir="ltr"] .app-sidebar { transform: translateX(-100%); }
    .app-sidebar.show { transform: translateX(0); }
    .app-main { margin-inline-start: 0; }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ===== Animations ===== */
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.card, .kpi-card { animation: fadeIn .4s ease-out; }

/* Loading skeleton */
.skeleton {
    background: linear-gradient(90deg, var(--border) 0%, var(--bg-main) 50%, var(--border) 100%);
    background-size: 200% 100%;
    animation: skeleton 1.5s infinite;
    border-radius: 4px;
}
@keyframes skeleton { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }