:root {
    --bg: #f4f7fb;
    --bg-soft: #eef4f8;
    --surface: #ffffff;
    --surface-muted: #f8fafc;
    --border: #d8e0ea;
    --border-strong: #bcc8d6;
    --text: #172033;
    --muted: #667085;
    --muted-strong: #475467;
    --primary: #0f766e;
    --primary-dark: #0b5f59;
    --primary-soft: #e3f5f2;
    --accent: #2563eb;
    --danger: #b42318;
    --danger-soft: #fef3f2;
    --success: #027a48;
    --success-soft: #ecfdf3;
    --warning: #b54708;
    --warning-soft: #fffaeb;
    --shadow: 0 18px 45px rgba(16, 24, 40, 0.08);
    --shadow-soft: 0 10px 30px rgba(16, 24, 40, 0.06);
    --radius: 8px;
    --radius-sm: 6px;
    --sidebar-width: 292px;
}

body.dark-mode {
    --bg: #0f172a;
    --bg-soft: #111c31;
    --surface: #172033;
    --surface-muted: #1f2a3d;
    --border: #314057;
    --border-strong: #475569;
    --text: #eef4ff;
    --muted: #a9b5c7;
    --muted-strong: #d5deea;
    --primary: #2dd4bf;
    --primary-dark: #5eead4;
    --primary-soft: rgba(45, 212, 191, 0.14);
    --accent: #60a5fa;
    --danger: #f87171;
    --danger-soft: rgba(248, 113, 113, 0.14);
    --success: #34d399;
    --success-soft: rgba(52, 211, 153, 0.14);
    --warning: #fbbf24;
    --warning-soft: rgba(251, 191, 36, 0.14);
    --shadow: 0 18px 45px rgba(0, 0, 0, 0.28);
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.22);
}

* { box-sizing: border-box; }

html { min-height: 100%; }

body {
    margin: 0;
    min-height: 100vh;
    background: linear-gradient(180deg, rgba(15, 118, 110, 0.05), transparent 280px), var(--bg);
    color: var(--text);
    font-family: Inter, "Segoe UI", Arial, Helvetica, sans-serif;
    line-height: 1.5;
}

html[dir="rtl"] body {
    direction: rtl;
    font-family: Tahoma, Arial, Helvetica, sans-serif;
}

button, input, select, textarea { font: inherit; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
img, svg { max-width: 100%; }
.muted { color: var(--muted); }

.page {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
    padding: 32px 0;
}

.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow-soft);
}

.panel + .panel { margin-top: 16px; }

.panel-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

.panel-header h2 { margin: 0; font-size: 18px; line-height: 1.3; }
.panel-header p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
}

.alert {
    margin-bottom: 16px;
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    font-size: 14px;
    border: 1px solid transparent;
}

.alert-error { background: var(--danger-soft); color: var(--danger); border-color: #fecdca; }
.alert-success { background: var(--success-soft); color: var(--success); border-color: #abefc6; }

.auth-page {
    display: grid;
    min-height: 100vh;
    place-items: center;
    padding: 24px;
    background:
        radial-gradient(circle at 15% 15%, rgba(37, 99, 235, 0.10), transparent 30%),
        radial-gradient(circle at 85% 10%, rgba(15, 118, 110, 0.16), transparent 30%),
        linear-gradient(145deg, #f8fbff, #eef7f5);
}

.auth-card {
    width: min(440px, 100%);
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(216, 224, 234, 0.95);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
}

.auth-card h1 { margin: 0 0 8px; font-size: 26px; letter-spacing: 0; }
.auth-card p { margin: 0 0 24px; color: var(--muted); }
.auth-card .btn { width: 100%; margin-top: 4px; }

.language-switch {
    font-weight: 800;
}

.auth-language {
    position: fixed;
    top: 18px;
    inset-inline-end: 18px;
    z-index: 5;
    min-height: 38px;
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    color: var(--primary);
    box-shadow: var(--shadow-soft);
}

.empty-cell {
    color: var(--muted);
    text-align: center;
    padding: 28px 12px;
}

.empty-state {
    display: grid;
    gap: 8px;
    place-items: center;
    min-height: 180px;
    color: var(--muted);
    text-align: center;
}

.loading-state { opacity: 0.7; pointer-events: none; }
.print-shell { background: #fff; }

body.dark-mode .print-shell { color: #111827; }

@media print {
    body { background: #fff; }
    .sidebar, .dashboard-header, .page-actions, .btn, .link-button, .danger-button, button { display: none !important; }
    .dashboard-shell, .dashboard-main { display: block; padding: 0; }
    .panel { border: 0; box-shadow: none; padding: 0; }
}