/* wwwroot/css/hierarchy.css */
/* استایل‌های سلسله‌مراتب آموزشی — مخزن سوالات */

:root {
    --primary: #1a56db;
    --primary-light: #e8f0fd;
    --primary-dark: #1341b0;
    --success: #0d9f6e;
    --success-light: #e3f8f0;
    --warning: #c27803;
    --warning-light: #fdf3e0;
    --danger: #c81e1e;
    --danger-light: #fde8e8;
    --info: #0694a2;
    --info-light: #e0f7f9;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --font: 'Vazirmatn', sans-serif;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-md: 0 4px 16px rgba(0,0,0,.08);
    --shadow-lg: 0 8px 32px rgba(0,0,0,.12);
    --transition: .15s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font);
    background: var(--gray-50);
    color: var(--gray-800);
    font-size: 14px;
    line-height: 1.6;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ─── Topbar ─── */
.topbar {
    height: 56px;
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 14px;
    flex-shrink: 0;
}

.topbar-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 8px;
}

.topbar-title .ti { color: var(--primary); }

.layout { display: flex; flex: 1; overflow: hidden; }

/* ─── Tree Panel ─── */
.tree-panel {
    width: 340px;
    background: #fff;
    border-left: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.tree-panel-header {
    padding: 14px 16px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tree-search {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 6px 10px;
}

.tree-search input {
    background: transparent;
    border: none;
    outline: none;
    font-family: var(--font);
    font-size: 13px;
    color: var(--gray-800);
    width: 100%;
}

.tree-search .ti { color: var(--gray-400); font-size: 15px; }

.tree-body { flex: 1; overflow-y: auto; padding: 8px; }

.tree-node { user-select: none; }

.tree-node-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 8px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition);
}

.tree-node-row:hover { background: var(--gray-100); }
.tree-node-row.selected { background: var(--primary-light); color: var(--primary); }

.tree-node-row .toggle {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--gray-400);
    font-size: 12px;
    transition: transform .2s;
}

.tree-node-row .toggle.open { transform: rotate(90deg); }
.tree-node-row .node-icon { font-size: 15px; flex-shrink: 0; }
.tree-node-row .node-label { font-size: 13px; flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tree-node-row .node-count { font-size: 10px; color: var(--gray-400); margin-right: auto; }
.tree-node-row.deleted { opacity: .45; text-decoration: line-through; }
.tree-children { padding-right: 20px; }

/* Level color accents */
.level-0 .node-icon { color: #6366f1; }
.level-1 .node-icon { color: #0694a2; }
.level-2 .node-icon { color: #0d9f6e; }
.level-3 .node-icon { color: #c27803; }
.level-4 .node-icon { color: #c81e1e; }
.level-5 .node-icon { color: #7c3aed; }
.level-6 .node-icon { color: #1a56db; }

/* ─── Detail Panel ─── */
.detail-panel { flex: 1; overflow-y: auto; padding: 24px; background: var(--gray-50); }
.detail-panel-inner { max-width: 760px; margin: 0 auto; }

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 60%;
    color: var(--gray-400);
    text-align: center;
    gap: 10px;
}

.empty-state .icon { font-size: 48px; }

/* ─── Breadcrumb ─── */
.hierarchy-path {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
    margin-bottom: 20px;
    font-size: 12px;
}

.hp-item { display: flex; align-items: center; gap: 4px; color: var(--gray-400); }
.hp-item.current { color: var(--gray-900); font-weight: 500; }
.hp-sep { color: var(--gray-300); font-size: 10px; }

/* ─── Cards ─── */
.card {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 16px;
}

.card-header {
    padding: 14px 18px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-title { font-size: 13px; font-weight: 600; color: var(--gray-900); }
.card-body { padding: 18px; }

/* ─── Buttons ─── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    border: 1px solid transparent;
    white-space: nowrap;
}

.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover:not(:disabled) { background: var(--primary-dark); }
.btn-secondary { background: #fff; color: var(--gray-700); border-color: var(--gray-200); }
.btn-secondary:hover:not(:disabled) { background: var(--gray-50); }
.btn-ghost { background: transparent; color: var(--gray-500); border-color: transparent; }
.btn-ghost:hover:not(:disabled) { background: var(--gray-100); color: var(--gray-800); }
.btn-danger { background: var(--danger-light); color: var(--danger); border-color: var(--danger); }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-icon { padding: 6px; }
.btn .ti { font-size: 14px; }

/* ─── Forms ─── */
.form-group { margin-bottom: 14px; }
.form-label { display: block; font-size: 12px; font-weight: 500; color: var(--gray-600); margin-bottom: 5px; }
.form-label .req { color: var(--danger); }

.form-control {
    width: 100%;
    padding: 7px 11px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-family: var(--font);
    font-size: 13px;
    color: var(--gray-800);
    background: #fff;
    transition: border var(--transition);
}

.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,86,219,.1); }
.form-control:disabled { background: var(--gray-100); color: var(--gray-400); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* ─── Badges ─── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 500;
}

.badge-primary { background: var(--primary-light); color: var(--primary); }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger  { background: var(--danger-light);  color: var(--danger); }
.badge-info    { background: var(--info-light);    color: var(--info); }
.badge-gray    { background: var(--gray-100);      color: var(--gray-600); }

/* ─── Info boxes ─── */
.info-box {
    padding: 9px 12px;
    border-radius: var(--radius-md);
    font-size: 12px;
    display: flex;
    gap: 8px;
    align-items: flex-start;
}

.info-box.info    { background: var(--info-light);    color: var(--info); }
.info-box.warning { background: var(--warning-light); color: var(--warning); }

/* ─── Matrix table ─── */
.matrix-table { border-collapse: collapse; width: 100%; }
.matrix-table th, .matrix-table td { padding: 8px 12px; border: 1px solid var(--gray-200); font-size: 12px; text-align: center; }
.matrix-table th { background: var(--gray-50); font-weight: 600; color: var(--gray-600); }
.matrix-table .row-header { text-align: right; font-weight: 500; color: var(--gray-700); background: var(--gray-50); }
.matrix-check { width: 18px; height: 18px; cursor: pointer; accent-color: var(--primary); }

/* ─── Modal ─── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s;
}

.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal {
    background: #fff;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    width: 560px;
    max-width: 96vw;
    max-height: 88vh;
    display: flex;
    flex-direction: column;
    transform: translateY(8px);
    transition: transform .2s;
}

.modal-overlay.open .modal { transform: translateY(0); }
.modal-header { padding: 16px 20px; border-bottom: 1px solid var(--gray-200); display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.modal-title { font-size: 15px; font-weight: 600; color: var(--gray-900); }
.modal-body { padding: 20px; overflow-y: auto; flex: 1; }
.modal-footer { padding: 14px 20px; border-top: 1px solid var(--gray-200); display: flex; gap: 8px; justify-content: flex-end; flex-shrink: 0; }

/* ─── Toggle Switch ─── */
.switch { position: relative; width: 36px; height: 20px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; }

.switch-track {
    position: absolute;
    inset: 0;
    background: var(--gray-300);
    border-radius: 20px;
    cursor: pointer;
    transition: background .2s;
}

.switch-track::after {
    content: '';
    position: absolute;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #fff;
    top: 3px;
    right: 3px;
    transition: transform .2s;
    box-shadow: 0 1px 2px rgba(0,0,0,.15);
}

.switch input:checked + .switch-track { background: var(--primary); }
.switch input:checked + .switch-track::after { transform: translateX(-16px); }

/* ─── Toast ─── */
.toast-container { position: fixed; bottom: 24px; left: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 6px; }

.toast {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: var(--gray-900);
    color: #fff;
    border-radius: var(--radius-lg);
    font-size: 12px;
    box-shadow: var(--shadow-lg);
    animation: slideUp .2s;
    min-width: 240px;
}

.toast.success { background: var(--success); }
.toast.danger  { background: var(--danger); }

/* ─── Children list hover ─── */
.children-list-row:hover { background: var(--gray-50); }

/* ─── Animations ─── */
@keyframes slideUp {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: .4; }
}

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--gray-200); border-radius: 8px; }

/* ════════════════════════════════════════
   RESPONSIVE PATCH
   ════════════════════════════════════════ */

.tree-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.4);
    z-index: 99;
}
.tree-overlay.active { display: block; }

.tree-toggle-btn { display: none; }

@media (max-width: 768px) {
    body { overflow-x: hidden; }

    .topbar { height: auto; flex-wrap: wrap; padding: 8px 12px; gap: 8px; }
    .topbar-title { font-size: 13px; }
    .topbar label { font-size: 11px; }
    .topbar .btn-sm { font-size: 11px; padding: 4px 8px; }

    .tree-toggle-btn {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 5px 10px;
        border-radius: var(--radius-md);
        background: #fff;
        border: 1px solid var(--gray-200);
        font-family: var(--font);
        font-size: 12px;
        font-weight: 500;
        cursor: pointer;
        color: var(--gray-700);
        white-space: nowrap;
        order: -1;
    }

    .layout { flex-direction: column; overflow: visible; }

    .tree-panel {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: 280px;
        z-index: 200;
        transform: translateX(100%);
        transition: transform .25s ease;
        box-shadow: var(--shadow-lg);
    }
    .tree-panel.open { transform: translateX(0); }

    .detail-panel {
        width: 100%;
        padding: 14px 12px;
        overflow-y: auto;
        height: calc(100vh - 56px);
    }
    .detail-panel-inner { max-width: 100%; }

    .card-header { flex-wrap: wrap; gap: 8px; }

    .form-row { grid-template-columns: 1fr !important; }

    .modal-overlay { align-items: flex-end; }
    .modal, .modal[style*="width:680px"] {
        width: 100% !important;
        max-width: 100% !important;
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        max-height: 90vh;
    }
    .modal-header { padding: 12px 16px; }
    .modal-body   { padding: 16px; }
    .modal-footer { padding: 10px 16px; flex-wrap: wrap; gap: 6px; }
    .modal-footer .btn { flex: 1; justify-content: center; }

    .matrix-table { min-width: 400px; }

    .toast-container { left: 10px; right: 10px; bottom: 12px; }
    .toast { min-width: unset; width: 100%; }

    .hierarchy-path { font-size: 11px; }
}

@media (max-width: 480px) {
    .topbar    { padding: 6px 10px; }
    .detail-panel { padding: 10px; }
    .card-body { padding: 12px; }
    .card-header { padding: 10px 12px; }
}