/* ===== Reset & Variables ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #eff6ff;
    --primary-border: #93c5fd;
    --bg: #f8fafc;
    --bg-white: #ffffff;
    --sidebar-bg: #0f172a;
    --sidebar-hover: rgba(255,255,255,0.06);
    --sidebar-active: rgba(255,255,255,0.1);
    --sidebar-text: #94a3b8;
    --text: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --border-hover: #cbd5e1;
    --success: #059669;
    --success-bg: #ecfdf5;
    --warning: #d97706;
    --warning-bg: #fffbeb;
    --danger: #dc2626;
    --danger-bg: #fef2f2;
    --info: #2563eb;
    --info-bg: #eff6ff;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08);
    --transition: 0.2s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    background:
        radial-gradient(circle at 100% 0%, rgba(37, 99, 235, 0.06), transparent 45%),
        radial-gradient(circle at 0% 100%, rgba(99, 102, 241, 0.05), transparent 40%),
        var(--bg);
    background-attachment: fixed;
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* ===== Sidebar ===== */
.sidebar {
    width: 248px;
    background:
        linear-gradient(180deg, #0b1224 0%, #0f172a 60%, #0c1426 100%);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 200;
    transition: transform 0.3s ease;
    border-right: 1px solid rgba(255,255,255,0.04);
    box-shadow: 1px 0 20px rgba(0,0,0,0.18);
}

.sidebar-header { padding: 22px 18px 18px; border-bottom: 1px solid rgba(255,255,255,0.06); }
.logo-row { display: flex; align-items: center; gap: 12px; }
.logo-mark {
    width: 38px; height: 38px; flex-shrink: 0;
    border-radius: 10px;
    background: linear-gradient(135deg, #3b82f6 0%, #6366f1 50%, #8b5cf6 100%);
    color: #fff; font-weight: 700; font-size: 18px;
    display: flex; align-items: center; justify-content: center;
    letter-spacing: -0.5px;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35), inset 0 1px 0 rgba(255,255,255,0.2);
}
.logo-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.logo { font-size: 18px; font-weight: 700; color: #fff; letter-spacing: -0.3px; line-height: 1.1; }
.logo-sub { font-size: 11px; color: var(--sidebar-text); letter-spacing: 0.4px; }

.sidebar-nav { padding: 14px 12px; flex: 1; overflow-y: auto; }

.sidebar-footer {
    padding: 12px;
    border-top: 1px solid rgba(255,255,255,0.06);
    background: rgba(0,0,0,0.15);
}

.nav-btn {
    display: flex; align-items: center; gap: 11px;
    width: 100%; padding: 9px 12px;
    border: none; background: transparent;
    color: var(--sidebar-text); font-size: 13.5px;
    border-radius: 8px; cursor: pointer;
    transition: all var(--transition); text-align: left;
    position: relative;
    margin-bottom: 2px;
}
.nav-btn:hover {
    background: rgba(255,255,255,0.04);
    color: #e2e8f0;
}
.nav-btn.active {
    background: linear-gradient(90deg, rgba(59,130,246,0.18), rgba(99,102,241,0.10));
    color: #fff; font-weight: 600;
    box-shadow: inset 0 0 0 1px rgba(99,102,241,0.18);
}
.nav-btn.active::before {
    content: ''; position: absolute; left: -12px; top: 50%;
    transform: translateY(-50%);
    width: 3px; height: 18px;
    background: linear-gradient(180deg, #60a5fa, #818cf8);
    border-radius: 0 3px 3px 0;
}
.nav-icon { font-size: 15px; width: 20px; text-align: center; flex-shrink: 0; opacity: 0.85; }
.nav-btn.active .nav-icon { opacity: 1; }

.nav-section-label {
    font-size: 10.5px; font-weight: 700; color: rgba(255,255,255,0.32);
    text-transform: uppercase; letter-spacing: 1.4px;
    padding: 10px 14px 6px;
}
.sidebar-nav .nav-section-label:first-child { padding-top: 4px; }

/* ===== Sidebar Status Dots ===== */
.sidebar-status {
    display: flex; gap: 14px; padding: 6px 8px 10px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    margin-bottom: 8px;
}
.status-row {
    display: flex; align-items: center; gap: 6px;
    font-size: 11px; color: rgba(255,255,255,0.45);
    letter-spacing: 0.3px;
}
.status-dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: #475569;
    box-shadow: 0 0 0 0 rgba(0,0,0,0);
    transition: all var(--transition);
}
.status-dot.on {
    background: #10b981;
    box-shadow: 0 0 0 2px rgba(16,185,129,0.18), 0 0 6px rgba(16,185,129,0.5);
}
.sidebar-token-btn { font-size: 12.5px; color: rgba(255,255,255,0.55); }

/* ===== Type Tabs ===== */
.type-tabs {
    display: flex; gap: 4px; margin-bottom: 18px;
    padding: 4px;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow-x: auto;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}
.type-tab {
    padding: 8px 14px; border: none;
    background: transparent;
    font-size: 13px; font-family: inherit; cursor: pointer;
    color: var(--text-secondary); border-radius: 8px;
    transition: all var(--transition); white-space: nowrap;
    font-weight: 500;
}
.type-tab:hover {
    color: var(--text);
    background: var(--bg);
}
.type-tab.active {
    color: var(--primary);
    background: var(--primary-light);
    font-weight: 600;
    box-shadow: inset 0 0 0 1px rgba(37, 99, 235, 0.18);
}

/* ===== Mobile ===== */
.mobile-topbar {
    display: none;
    position: fixed; top: 0; left: 0; right: 0;
    height: 52px; background: var(--sidebar-bg);
    align-items: center; padding: 0 16px; z-index: 150;
}
.mobile-menu-btn { background: none; border: none; color: #fff; font-size: 22px; cursor: pointer; padding: 4px 8px; }
.mobile-title { color: #fff; font-size: 17px; font-weight: 600; margin-left: 12px; }
.sidebar-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,0.5); z-index: 190;
}

/* ===== Main Content ===== */
.main-content {
    flex: 1; margin-left: 248px;
    padding: 0 48px 64px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Center every direct child (topbar + views) inside a max-width column */
.main-content > .desktop-topbar,
.main-content > .view {
    width: 100%;
    max-width: 1180px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Desktop Topbar ===== */
.desktop-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    padding: 0 4px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: rgba(248, 250, 252, 0.85);
    backdrop-filter: saturate(160%) blur(10px);
    -webkit-backdrop-filter: saturate(160%) blur(10px);
    z-index: 50;
}
.desktop-topbar-left {
    display: flex; align-items: center; gap: 10px;
    font-size: 14px;
}
.topbar-crumb { color: var(--text-light); font-weight: 500; }
.topbar-sep { color: var(--text-light); }
.topbar-current { color: var(--text); font-weight: 600; }
.desktop-topbar-right { display: flex; align-items: center; gap: 8px; }
.topbar-btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 7px 14px;
    border: 1px solid var(--border); background: var(--bg-white);
    color: var(--text-secondary); font-size: 13px;
    border-radius: 8px; cursor: pointer;
    transition: all var(--transition); font-family: inherit;
}
.topbar-btn:hover {
    color: var(--primary); border-color: var(--primary-border);
    background: var(--primary-light);
}
.topbar-btn .nav-icon { font-size: 14px; width: auto; }

.page-header { margin-bottom: 24px; padding-top: 8px; }
.page-header h2 { font-size: 26px; font-weight: 700; margin-bottom: 6px; letter-spacing: -0.4px; }
.page-header p { color: var(--text-secondary); font-size: 14px; }

.view { display: none; }
.view.active { display: block; }

/* ===== Form (cards layout) ===== */
.report-form {
    background: transparent;
    padding: 0;
    border: none;
    box-shadow: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Each top-level group becomes its own card */
.report-form > .form-group,
.report-form > .structured-fields,
.report-form > .feishu-group {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px 24px;
    margin-bottom: 0;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
    transition: border-color var(--transition), box-shadow var(--transition);
}
.report-form > .form-group:focus-within,
.report-form > .structured-fields:focus-within,
.report-form > .feishu-group:focus-within {
    border-color: var(--primary-border);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 0 0 3px rgba(37, 99, 235, 0.06);
}

/* Top-level label = section header (larger, with accent) */
.report-form > .form-group > label {
    display: flex; align-items: center; gap: 8px;
    font-size: 15px; font-weight: 600;
    margin-bottom: 12px; color: var(--text);
    letter-spacing: -0.1px;
}
.report-form > .form-group > label::before {
    content: ''; width: 3px; height: 14px;
    background: linear-gradient(180deg, #3b82f6, #6366f1);
    border-radius: 2px; flex-shrink: 0;
}
/* Feishu card's label already has its own icon; suppress the extra bar */
.report-form > .feishu-group > label::before { display: none; }

/* Nested form-groups (inside structured-fields) keep simple labels */
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block; font-size: 13px; font-weight: 500;
    margin-bottom: 6px; color: var(--text);
}
.required { color: var(--danger); margin-left: 2px; }

.form-group input[type="text"],
.form-group textarea,
.filter-group select {
    width: 100%; padding: 10px 13px;
    border: 1px solid var(--border); border-radius: 8px;
    font-size: 14px; font-family: inherit;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
    background: var(--bg-white);
    color: var(--text);
}
.form-group input[type="text"]:hover,
.form-group textarea:hover {
    border-color: var(--border-hover);
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}
.form-group input::placeholder, .form-group textarea::placeholder { color: #94a3b8; }
.form-hint { display: block; font-size: 12px; color: var(--text-light); margin-top: 6px; }

/* ===== Topic Suggestions ===== */
.topic-suggestions { margin-top: 14px; }
.suggestions-label { font-size: 12px; color: var(--text-light); margin-bottom: 8px; letter-spacing: 0.2px; }
.suggestions-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
    padding: 6px 14px; border: 1px solid var(--border);
    border-radius: 999px; font-size: 12.5px; font-weight: 500;
    background: var(--bg-white); color: var(--text-secondary);
    cursor: pointer;
    transition: transform 0.12s ease, background var(--transition), border-color var(--transition), color var(--transition);
    font-family: inherit;
}
.tag:hover {
    border-color: var(--primary-border);
    background: var(--primary-light);
    color: var(--primary);
    transform: translateY(-1px);
}
.tag:active { transform: translateY(0); }

/* ===== Depth Selector ===== */
.depth-selector { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.depth-option input[type="radio"] { display: none; }
.depth-card {
    border: 1px solid var(--border); border-radius: 12px;
    padding: 18px 14px 14px; text-align: center;
    cursor: pointer; background: var(--bg-white);
    transition: transform 0.15s ease, border-color var(--transition), box-shadow var(--transition), background var(--transition);
    position: relative;
}
.depth-card:hover {
    border-color: var(--primary-border);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px -8px rgba(37, 99, 235, 0.30);
}
.depth-option input:checked + .depth-card {
    border-color: var(--primary);
    background: linear-gradient(180deg, rgba(37, 99, 235, 0.06), rgba(99, 102, 241, 0.04));
    box-shadow: 0 0 0 1px var(--primary), 0 6px 16px -8px rgba(37, 99, 235, 0.30);
}
.depth-option input:checked + .depth-card::after {
    content: '\2713'; position: absolute; top: 8px; right: 10px;
    width: 18px; height: 18px; border-radius: 50%;
    background: var(--primary); color: #fff;
    font-size: 11px; line-height: 18px;
}
.depth-icon { font-size: 24px; margin-bottom: 6px; }
.depth-title { font-size: 16px; font-weight: 600; }
.depth-desc { font-size: 13px; color: var(--primary); font-weight: 500; margin: 2px 0 6px; }
.depth-detail { font-size: 12px; color: var(--text-secondary); line-height: 1.5; }
.depth-time { font-size: 11px; color: var(--text-light); margin-top: 8px; }

/* ===== Structured Fields ===== */
/* When inside .report-form, the outer card styling already applies; here we
   only handle its inner section title and grid. */
.fields-section-title {
    display: flex; align-items: center; gap: 8px;
    font-size: 15px; font-weight: 600; color: var(--text);
    margin-bottom: 14px; letter-spacing: -0.1px;
}
.fields-section-title::before {
    content: ''; width: 3px; height: 14px;
    background: linear-gradient(180deg, #3b82f6, #6366f1);
    border-radius: 2px; flex-shrink: 0;
}
/* Subsequent section titles inside the same card get a top divider */
.structured-fields .fields-section-title:not(:first-child) {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px dashed var(--border);
}
.fields-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 18px;
    margin-bottom: 12px;
}
.fields-grid .form-group { margin-bottom: 0; }
.fields-grid label { font-size: 13px; font-weight: 500; margin-bottom: 5px; color: var(--text-secondary); }
.fields-grid input, .fields-grid select {
    padding: 8px 11px; font-size: 13.5px;
}

.checkbox-group {
    display: flex; flex-wrap: wrap; gap: 8px;
}
.check-item {
    display: inline-flex; align-items: center; gap: 7px;
    font-size: 13px; color: var(--text-secondary); cursor: pointer;
    padding: 6px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 999px;
    transition: all var(--transition);
    user-select: none;
}
.check-item:hover {
    border-color: var(--primary-border);
    background: var(--primary-light);
    color: var(--primary);
}
.check-item:has(input:checked) {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
    font-weight: 500;
}
.check-item input[type="checkbox"] {
    width: 14px; height: 14px; accent-color: var(--primary);
    margin: 0;
}

/* ===== Report Type Selector ===== */
.type-selector { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.type-option input[type="radio"] { display: none; }
.type-card {
    border: 1px solid var(--border); border-radius: 12px;
    padding: 14px 12px; text-align: center; cursor: pointer;
    background: var(--bg-white);
    transition: transform 0.15s ease, border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
.type-card:hover {
    border-color: var(--primary-border);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px -8px rgba(37, 99, 235, 0.30);
}
.type-option input:checked + .type-card {
    border-color: var(--primary);
    background: linear-gradient(180deg, rgba(37, 99, 235, 0.06), rgba(99, 102, 241, 0.04));
    box-shadow: 0 0 0 1px var(--primary);
}
.type-icon { font-size: 28px; margin-bottom: 4px; }
.type-title { font-size: 15px; font-weight: 600; margin-bottom: 2px; }
.type-desc { font-size: 12px; color: var(--text-secondary); }

/* ===== Comps Toggle ===== */
.comps-toggle { display: flex; align-items: center; gap: 10px; }

/* ===== Assignee Selector ===== */
.assignee-input-wrap { position: relative; }
.assignee-input-wrap input {
    width: 100%; padding: 10px 13px;
    border: 1px solid var(--border); border-radius: 8px;
    font-size: 14px; font-family: inherit;
    background: var(--bg-white);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.assignee-input-wrap input:hover { border-color: var(--border-hover); }
.assignee-input-wrap input:focus {
    outline: none; border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}
.assignee-dropdown {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--bg-white); border: 1px solid var(--border);
    border-radius: var(--radius-sm); box-shadow: var(--shadow-lg);
    z-index: 50; max-height: 200px; overflow-y: auto;
}
.assignee-dropdown.open { display: block; }
.assignee-dropdown-item {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 12px; cursor: pointer; font-size: 14px;
    transition: background 0.1s;
}
.assignee-dropdown-item:hover { background: var(--primary-light); }
.assignee-avatar {
    width: 28px; height: 28px; border-radius: 50%;
    background: var(--primary-light); color: var(--primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; font-weight: 600; flex-shrink: 0;
    overflow: hidden;
}
.assignee-avatar img { width: 100%; height: 100%; object-fit: cover; }
.assignee-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.assignee-tag {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 4px 10px 4px 6px; background: var(--primary-light);
    border: 1px solid var(--primary-border); border-radius: 20px;
    font-size: 13px; color: var(--primary);
}
.assignee-tag-avatar {
    width: 22px; height: 22px; border-radius: 50%;
    background: var(--primary); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 11px; font-weight: 600;
}
.assignee-tag-remove {
    background: none; border: none; color: var(--primary);
    cursor: pointer; font-size: 14px; padding: 0 2px; opacity: 0.6;
}
.assignee-tag-remove:hover { opacity: 1; }

/* ===== Editable Title ===== */
.detail-title-wrap { display: flex; align-items: center; gap: 8px; }
.detail-title-wrap h2 { cursor: text; }
.detail-title-edit {
    background: none; border: none; color: var(--text-light);
    cursor: pointer; font-size: 14px; padding: 2px 6px;
    border-radius: 4px; transition: all var(--transition);
}
.detail-title-edit:hover { background: var(--bg); color: var(--text); }

/* ===== File Upload ===== */
.upload-area {
    border: 1.5px dashed var(--border-hover); border-radius: 12px;
    padding: 32px 20px; text-align: center; cursor: pointer;
    transition: all var(--transition); color: var(--text-secondary);
    background:
        repeating-linear-gradient(45deg, transparent 0 12px, rgba(37, 99, 235, 0.015) 12px 24px),
        var(--bg-white);
}
.upload-area:hover {
    border-color: var(--primary);
    background: var(--primary-light);
    color: var(--primary);
    transform: translateY(-1px);
}
.upload-area.drag-over {
    border-color: var(--primary); border-style: solid;
    background: var(--primary-light); color: var(--primary);
    transform: scale(1.01);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.10);
}
.upload-icon { font-size: 32px; margin-bottom: 6px; }
.upload-hint { font-size: 12px; color: var(--text-light); margin-top: 4px; }

.file-list { margin-top: 10px; display: flex; flex-direction: column; gap: 6px; }
.file-item {
    padding: 8px 12px; background: var(--bg);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    font-size: 13px;
}
.file-item-row { display: flex; align-items: center; gap: 10px; }
.file-item-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-item-size { color: var(--text-light); font-size: 12px; flex-shrink: 0; }
.file-item-status { font-size: 12px; flex-shrink: 0; }
.file-item-status.success { color: var(--success); }
.file-item-status.error { color: var(--danger); }
.file-item-status.uploading { color: var(--info); }
.file-item-percent { font-variant-numeric: tabular-nums; }
.file-item-pending { background: var(--primary-light); border-color: rgba(37, 99, 235, 0.25); }
.file-progress {
    margin-top: 6px; height: 4px; background: rgba(37, 99, 235, 0.12);
    border-radius: 999px; overflow: hidden;
}
.file-progress-bar {
    height: 100%; background: linear-gradient(90deg, var(--primary), #60a5fa);
    border-radius: 999px; transition: width 0.15s ease-out;
}
.file-item-remove {
    background: none; border: none; color: var(--text-light);
    cursor: pointer; font-size: 16px; padding: 0 4px;
}
.file-item-remove:hover { color: var(--danger); }

/* ===== Feishu Toggle ===== */
.report-form > .feishu-group {
    background: linear-gradient(135deg, #f0f5ff 0%, #f7faff 100%);
    border-color: #d6e4ff;
}
.feishu-label {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 15px; font-weight: 600; color: var(--text);
}
.feishu-toggle { display: flex; align-items: center; gap: 12px; margin-top: 10px; }
.feishu-desc { font-size: 13px; color: var(--text-secondary); }

.toggle-switch { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
    position: absolute; inset: 0; cursor: pointer;
    background: #cbd5e1; border-radius: 24px;
    transition: background 0.2s ease;
}
.toggle-slider::before {
    content: ''; position: absolute;
    width: 18px; height: 18px; left: 3px; bottom: 3px;
    background: #fff; border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0,0,0,0.18);
    transition: transform 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}
.toggle-switch input:checked + .toggle-slider {
    background: linear-gradient(135deg, #3b82f6, #4f46e5);
}
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(20px); }
.toggle-switch input:focus-visible + .toggle-slider {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
}

/* ===== Buttons ===== */
.btn-primary {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 11px 26px;
    background: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);
    color: #fff;
    border: none; border-radius: 10px;
    font-size: 15px; font-weight: 600; cursor: pointer;
    font-family: inherit;
    box-shadow: 0 1px 2px rgba(37, 99, 235, 0.20), 0 4px 14px -4px rgba(79, 70, 229, 0.45);
    transition: transform 0.12s ease, box-shadow 0.18s ease, filter 0.18s ease;
    letter-spacing: 0.2px;
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(37, 99, 235, 0.22), 0 10px 20px -6px rgba(79, 70, 229, 0.55);
    filter: brightness(1.04);
}
.btn-primary:active { transform: translateY(0); filter: brightness(0.97); }
.btn-primary:disabled {
    opacity: 0.55; cursor: not-allowed; transform: none;
    box-shadow: none; filter: grayscale(0.2);
}
.btn-generate {
    width: 100%;
    padding: 14px 24px; font-size: 16px; font-weight: 600;
    margin-top: 4px;
    border-radius: 12px;
}

.spinner-inline {
    display: inline-block; width: 14px; height: 14px;
    border: 2px solid rgba(255,255,255,0.35); border-top-color: #fff;
    border-radius: 50%; animation: spin 0.6s linear infinite;
    vertical-align: middle; margin-right: 6px;
}

.btn-secondary {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 7px 14px; background: var(--bg-white); color: var(--text);
    border: 1px solid var(--border); border-radius: 8px;
    font-size: 13px; cursor: pointer;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
    font-family: inherit;
}
.btn-secondary:hover {
    background: var(--primary-light);
    border-color: var(--primary-border);
    color: var(--primary);
}

.btn-back {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 7px 14px; background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 8px; color: var(--text-secondary);
    font-size: 13px; cursor: pointer; font-family: inherit;
    transition: all var(--transition);
}
.btn-back:hover { background: var(--bg); color: var(--text); border-color: var(--border-hover); }

.btn-danger-sm {
    padding: 5px 10px; background: none; color: var(--danger);
    border: 1px solid transparent; border-radius: 8px;
    font-size: 12px; cursor: pointer; font-family: inherit;
    transition: all var(--transition);
}
.btn-danger-sm:hover { background: var(--danger-bg); border-color: #fecaca; }

/* ===== Report List ===== */
.list-toolbar {
    display: flex; gap: 10px; align-items: center;
    flex-wrap: wrap; margin-bottom: 16px;
}

.search-box {
    flex: 1; min-width: 200px; position: relative;
}
.search-icon {
    position: absolute; left: 10px; top: 50%; transform: translateY(-50%);
    font-size: 14px; color: var(--text-light); pointer-events: none;
}
.search-box input {
    width: 100%; padding: 9px 32px 9px 34px;
    border: 1px solid var(--border); border-radius: 8px;
    font-size: 14px; font-family: inherit;
    background: var(--bg-white);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.search-box input:hover { border-color: var(--border-hover); }
.search-box input:focus {
    outline: none; border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.10);
}
.search-clear {
    position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
    background: none; border: none; color: var(--text-light);
    cursor: pointer; font-size: 14px; padding: 2px 4px;
}

.filter-group { display: flex; gap: 8px; }
.filter-group select {
    width: auto; padding: 7px 28px 7px 10px; font-size: 13px;
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    background: var(--bg-white); cursor: pointer; font-family: inherit;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M3 5l3 3 3-3'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 8px center;
}

.list-stats { font-size: 13px; color: var(--text-light); margin-bottom: 14px; padding-left: 4px; }

.report-list { display: flex; flex-direction: column; gap: 10px; }

.report-card {
    background: var(--bg-white); border: 1px solid var(--border);
    border-radius: 12px; padding: 16px 20px;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow var(--transition), border-color var(--transition);
    display: flex; justify-content: space-between; align-items: center;
    gap: 16px;
    position: relative;
    overflow: hidden;
}
.report-card::before {
    content: ''; position: absolute; left: 0; top: 0; bottom: 0;
    width: 3px; background: linear-gradient(180deg, #3b82f6, #6366f1);
    opacity: 0; transition: opacity var(--transition);
}
.report-card:hover {
    box-shadow: 0 8px 24px -10px rgba(15, 23, 42, 0.18);
    border-color: var(--primary-border);
    transform: translateY(-2px);
}
.report-card:hover::before { opacity: 1; }
.report-card-info { flex: 1; min-width: 0; }
.report-card-title {
    font-size: 15px; font-weight: 600; margin-bottom: 6px;
    color: var(--text);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    letter-spacing: -0.1px;
}
.report-card-meta {
    display: flex; flex-wrap: wrap; gap: 6px 12px;
    font-size: 12px; color: var(--text-secondary);
    align-items: center;
}
.report-card-actions { display: flex; gap: 6px; align-items: center; flex-shrink: 0; }

/* ===== Badges ===== */
.badge {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 3px 9px; border-radius: 999px;
    font-size: 11px; font-weight: 600;
    letter-spacing: 0.2px;
    border: 1px solid transparent;
}
.badge-completed { background: var(--success-bg); color: var(--success); border-color: rgba(5,150,105,0.18); }
.badge-generating, .badge-pending { background: var(--info-bg); color: var(--info); border-color: rgba(37,99,235,0.18); }
.badge-failed { background: var(--danger-bg); color: var(--danger); border-color: rgba(220,38,38,0.18); }
.badge::before {
    content: ''; width: 5px; height: 5px; border-radius: 50%;
    background: currentColor; flex-shrink: 0; opacity: 0.85;
}
.badge-depth {
    padding: 3px 9px; border-radius: 6px;
    font-size: 11px; background: var(--warning-bg); color: var(--warning);
    font-weight: 600; letter-spacing: 0.2px;
}
.badge-depth::before { display: none; }

/* ===== Detail View ===== */
.detail-toolbar {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 16px; flex-wrap: wrap; gap: 10px;
}
.detail-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.detail-meta {
    background: var(--bg-white); border: 1px solid var(--border);
    border-radius: 14px; padding: 22px 26px; margin-bottom: 16px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
    position: relative;
    overflow: hidden;
}
.detail-meta::before {
    content: ''; position: absolute; left: 0; top: 0; bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, #3b82f6, #6366f1, #8b5cf6);
}
.detail-meta h2 {
    font-size: 22px; font-weight: 700; margin-bottom: 10px;
    letter-spacing: -0.3px; color: var(--text);
}
.detail-meta-info {
    display: flex; flex-wrap: wrap; gap: 8px 18px;
    font-size: 13px; color: var(--text-secondary); align-items: center;
}
.detail-meta-info > span:not(.badge):not(.badge-depth) {
    display: inline-flex; align-items: center; gap: 5px;
}

/* ===== Report Content ===== */
.report-detail {
    display: flex; gap: 0;
    background: var(--bg-white); border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
    min-height: 200px;
    overflow: hidden;
}

.report-toc {
    width: 220px; flex-shrink: 0; padding: 24px 8px 24px 24px;
    border-right: 1px solid var(--border);
    background: linear-gradient(180deg, #fafbfd 0%, var(--bg-white) 60%);
    position: sticky; top: 88px; align-self: flex-start;
    max-height: calc(100vh - 120px); overflow-y: auto;
}
.report-toc:empty { display: none; }
.report-toc:empty + .report-body { padding-left: 40px; }
.toc-title {
    font-size: 11px; font-weight: 700; color: var(--text-light);
    margin-bottom: 12px; text-transform: uppercase; letter-spacing: 1.2px;
}
.toc-list { list-style: none; }
.toc-item {
    display: block; padding: 6px 12px;
    font-size: 13px; color: var(--text-secondary);
    text-decoration: none; cursor: pointer;
    border-left: 2px solid transparent;
    margin-bottom: 2px; border-radius: 0 6px 6px 0;
    transition: all var(--transition);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.toc-item:hover {
    color: var(--primary);
    background: rgba(37, 99, 235, 0.04);
}
.toc-item.active {
    color: var(--primary);
    border-left-color: var(--primary);
    background: var(--primary-light);
    font-weight: 600;
}
.toc-item.toc-h3 { padding-left: 26px; font-size: 12px; opacity: 0.85; }

.report-body {
    flex: 1; padding: 36px 40px; line-height: 1.85;
    min-width: 0; /* prevent overflow */
    color: #1f2937;
    font-size: 15px;
}
.report-body h1 {
    font-size: 28px; font-weight: 700;
    margin-bottom: 18px; padding-bottom: 14px;
    border-bottom: 2px solid var(--border);
    letter-spacing: -0.4px;
}
.report-body h2 {
    font-size: 21px; font-weight: 700;
    margin: 32px 0 14px;
    color: var(--text);
    scroll-margin-top: 88px;
    padding-left: 12px;
    border-left: 4px solid var(--primary);
    line-height: 1.3;
}
.report-body h3 {
    font-size: 17px; font-weight: 600;
    margin: 22px 0 10px;
    color: var(--text);
    scroll-margin-top: 88px;
}
.report-body p { margin-bottom: 14px; }
.report-body ul, .report-body ol { margin-bottom: 14px; padding-left: 24px; }
.report-body li { margin-bottom: 6px; }
.report-body table {
    width: 100%; border-collapse: separate; border-spacing: 0;
    margin: 18px 0; font-size: 14px;
    border: 1px solid var(--border);
    border-radius: 10px; overflow: hidden;
}
.report-body th, .report-body td {
    border-bottom: 1px solid var(--border);
    border-right: 1px solid var(--border);
    padding: 10px 14px; text-align: left;
}
.report-body th:last-child, .report-body td:last-child { border-right: none; }
.report-body tr:last-child td { border-bottom: none; }
.report-body th {
    background: var(--bg);
    font-weight: 600; color: var(--text);
    letter-spacing: 0.1px;
}
.report-body tr:nth-child(even) td { background: rgba(248, 250, 252, 0.5); }
.report-body blockquote {
    border-left: 3px solid var(--primary);
    padding: 12px 18px; margin: 16px 0;
    background: linear-gradient(135deg, var(--primary-light), rgba(99, 102, 241, 0.04));
    border-radius: 0 8px 8px 0;
    font-size: 14px;
    color: var(--text);
}
.report-body strong { font-weight: 600; color: var(--text); }
.report-body code {
    background: var(--bg);
    padding: 2px 6px; border-radius: 4px;
    font-size: 13px;
    color: #be185d;
    border: 1px solid var(--border);
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
}
.report-body hr { border: none; border-top: 1px dashed var(--border); margin: 28px 0; }

/* ===== Charts ===== */
.chart-container {
    margin: 20px 0;
    padding: 16px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    max-width: 600px;
}
.chart-container canvas {
    max-height: 350px;
}

/* ===== Generating / Stream ===== */
.generating-header {
    background: var(--bg-white); border: 1px solid var(--border);
    border-radius: 12px; padding: 16px 22px; margin-bottom: 14px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
    position: relative;
    overflow: hidden;
}
.generating-header::before {
    content: ''; position: absolute; left: 0; top: 0; bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, #3b82f6, #6366f1);
    animation: pulseAccent 2s ease-in-out infinite;
}
@keyframes pulseAccent {
    0%, 100% { opacity: 0.55; }
    50% { opacity: 1; }
}
.generating-status {
    display: flex; align-items: center; gap: 12px;
    font-size: 14px; font-weight: 500; margin-bottom: 12px;
}
.spinner-sm {
    width: 16px; height: 16px;
    border: 2px solid var(--border); border-top-color: var(--primary);
    border-radius: 50%; animation: spin 0.7s linear infinite; flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }
.generating-time { font-size: 13px; color: var(--text-light); margin-left: auto; font-variant-numeric: tabular-nums; }

.progress-bar {
    width: 100%; height: 4px;
    background: var(--border); border-radius: 99px; overflow: hidden;
}
.progress-fill {
    height: 100%; width: 0%;
    background: linear-gradient(90deg, #3b82f6, #6366f1, #8b5cf6);
    background-size: 200% 100%;
    border-radius: 99px;
    transition: width 0.5s ease;
    animation: progressShimmer 2s linear infinite;
}
@keyframes progressShimmer {
    from { background-position: 200% 0; }
    to { background-position: -200% 0; }
}

.stream-output { display: block; }
.stream-output .report-body { min-height: 300px; }
.stream-placeholder { text-align: center; padding: 70px 20px; color: var(--text-light); }
.stream-placeholder-icon { font-size: 44px; margin-bottom: 14px; opacity: 0.7; }
.stream-placeholder-sub { font-size: 13px; margin-top: 6px; }

/* ===== Empty State ===== */
.empty-state { text-align: center; padding: 70px 20px; color: var(--text-secondary); }
.empty-icon { font-size: 44px; margin-bottom: 14px; opacity: 0.55; }
.empty-sub { font-size: 13px; color: var(--text-light); margin-top: 6px; }

/* ===== Toast ===== */
.toast-container {
    position: fixed; top: 80px; right: 24px; z-index: 9999;
    display: flex; flex-direction: column; gap: 10px;
}
.toast {
    padding: 12px 18px; border-radius: 10px;
    font-size: 14px; min-width: 280px; max-width: 420px;
    box-shadow: 0 12px 30px -10px rgba(15, 23, 42, 0.25);
    animation: toastIn 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);
    display: flex; align-items: center; gap: 10px;
    border: 1px solid;
    background: var(--bg-white);
}
.toast-success { color: var(--success); border-color: rgba(5, 150, 105, 0.25); background: var(--success-bg); }
.toast-error   { color: var(--danger);  border-color: rgba(220, 38, 38, 0.25); background: var(--danger-bg); }
.toast-info    { color: var(--info);    border-color: rgba(37, 99, 235, 0.25); background: var(--info-bg); }
.toast-exit { animation: toastOut 0.28s ease forwards; }

@keyframes toastIn { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }
@keyframes toastOut { from { opacity: 1; } to { opacity: 0; transform: translateX(40px); } }

/* ===== Print ===== */
@media print {
    .sidebar, .mobile-topbar, .detail-toolbar, .detail-actions,
    .toast-container, .report-toc { display: none !important; }
    .main-content { margin-left: 0 !important; padding: 0 !important; max-width: 100% !important; }
    .report-detail { box-shadow: none !important; border: none !important; }
    .report-body { padding: 0 !important; }
    .detail-meta { border: none !important; box-shadow: none !important; }
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .mobile-topbar { display: flex; }
    .desktop-topbar { display: none; }
    .main-content { margin-left: 0; padding: 64px 16px 20px; }
    .depth-selector { grid-template-columns: 1fr; }
    .report-form { padding: 20px; }
    .report-toc { display: none; }
    .report-body { padding: 20px !important; }
    .filter-group { width: 100%; }
    .filter-group select { flex: 1; }
    .list-toolbar { flex-direction: column; }
    .detail-meta h2 { font-size: 17px; }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .main-content { padding: 0 28px 48px; }
}

@media (max-width: 1100px) {
    .report-toc { width: 160px; }
}