/* =============================================================
   case-platform · 深色科技感主题
   全部使用 CSS 变量，便于后续扩展浅色主题
   ============================================================= */

:root {
    --bg-base:      #0B1020;
    --bg-panel:    #111A2E;
    --bg-elevated: #172241;
    --bg-hover:    #1D2A4A;

    --accent:      #22D3EE;
    --accent-2:    #818CF8;
    --accent-grad: linear-gradient(135deg, #22D3EE 0%, #818CF8 100%);

    --text-1: #E6EDF7;
    --text-2: #9AA8C0;
    --text-3: #6B7A94;

    --border:      rgba(255,255,255,.08);
    --border-soft: rgba(255,255,255,.05);
    --border-glow: rgba(34,211,238,.35);

    --success: #34D399;
    --warning: #FBBF24;
    --danger:  #F87171;
    --info:    #60A5FA;

    --p0: #F87171;
    --p1: #FBBF24;
    --p2: #60A5FA;
    --p3: #6B7A94;

    --radius:   12px;
    --radius-s: 8px;
    --shadow:   0 8px 24px rgba(0,0,0,.35);
    --glow:     0 8px 24px rgba(34,211,238,.15);

    --sidebar-w: 232px;
    --topbar-h:  60px;

    --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
            "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg-base);
    color: var(--text-1);
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.6;
}

body { min-height: 100vh; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); }

h1, h2, h3, h4 { font-weight: 500; margin: 0 0 12px; }
h1 { font-size: 20px; }
h2 { font-size: 17px; }
h3 { font-size: 15px; }

/* 背景装饰辉光 */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(900px 500px at 12% -8%, rgba(34,211,238,.10), transparent 60%),
        radial-gradient(800px 480px at 92% 4%, rgba(129,140,248,.10), transparent 60%);
    z-index: 0;
}

/* ------------------------------------------------------------- 布局 */
.app { display: flex; min-height: 100vh; position: relative; z-index: 1; }

.sidebar {
    width: var(--sidebar-w);
    flex: 0 0 var(--sidebar-w);
    background: var(--bg-panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
}

.sidebar-brand {
    height: var(--topbar-h);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 18px;
    border-bottom: 1px solid var(--border);
}
.sidebar-brand .logo {
    width: 28px; height: 28px; border-radius: 8px;
    background: var(--accent-grad);
    box-shadow: var(--glow);
}
.sidebar-brand .name { font-weight: 500; font-size: 14px; letter-spacing: .3px; }
.sidebar-brand .name small { display: block; font-size: 11px; color: var(--text-3); font-weight: 400; }

.nav { padding: 12px 10px; overflow-y: auto; flex: 1; }
.nav-group { margin-bottom: 16px; }
.nav-group-title {
    font-size: 11px; color: var(--text-3);
    padding: 0 10px 6px; text-transform: uppercase; letter-spacing: .8px;
}
.nav-item {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 12px; border-radius: var(--radius-s);
    color: var(--text-2); font-size: 13px; margin-bottom: 2px;
    border-left: 2px solid transparent;
    transition: background .15s, color .15s;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text-1); }
.nav-item.is-active {
    background: linear-gradient(90deg, rgba(34,211,238,.14), transparent);
    color: var(--text-1);
    border-left-color: var(--accent);
}
.nav-item .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--text-3); }
.nav-item.is-active .dot { background: var(--accent); box-shadow: 0 0 8px var(--accent); }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
    height: var(--topbar-h);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 20px;
    border-bottom: 1px solid var(--border);
    background: rgba(17,26,46,.72);
    backdrop-filter: blur(10px);
    position: sticky; top: 0; z-index: 20;
}
.topbar .page-title { font-size: 15px; font-weight: 500; }
.topbar-right { display: flex; align-items: center; gap: 14px; }

.badge-dot {
    position: relative; display: inline-flex; align-items: center;
    padding: 6px 10px; border-radius: 999px;
    background: var(--bg-elevated); color: var(--text-2); font-size: 12px;
}
.badge-dot .count {
    margin-left: 6px; min-width: 18px; height: 18px; padding: 0 5px;
    border-radius: 999px; background: var(--danger); color: #fff;
    font-size: 11px; display: inline-flex; align-items: center; justify-content: center;
}

.user-chip {
    display: flex; align-items: center; gap: 8px;
    padding: 5px 12px 5px 5px; border-radius: 999px;
    background: var(--bg-elevated); border: 1px solid var(--border);
}
.user-chip .avatar {
    width: 26px; height: 26px; border-radius: 50%;
    background: var(--accent-grad); color: #06121f;
    display: flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 500;
}
.user-chip .meta { font-size: 12px; line-height: 1.2; }
.user-chip .meta small { display: block; color: var(--text-3); font-size: 11px; }

.content { padding: 22px; flex: 1; }

/* ------------------------------------------------------------- 卡片 */
.card {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    margin-bottom: 16px;
}
.card-head {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 14px;
}
.card-head h2, .card-head h3 { margin: 0; }
.card-sub { color: var(--text-3); font-size: 12px; }

.grid { display: grid; gap: 16px; }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

/* KPI 卡 */
.kpi {
    position: relative; overflow: hidden;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
}
.kpi::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: var(--accent-grad);
}
.kpi .label { color: var(--text-3); font-size: 12px; }
.kpi .value {
    font-size: 26px; font-weight: 500; margin-top: 6px;
    letter-spacing: .5px;
}
.kpi .hint { color: var(--text-3); font-size: 11px; margin-top: 4px; }
.kpi.is-danger::before { background: linear-gradient(135deg, #F87171, #FB923C); }
.kpi.is-warn::before   { background: linear-gradient(135deg, #FBBF24, #F59E0B); }
.kpi.is-ok::before     { background: linear-gradient(135deg, #34D399, #22D3EE); }

/* ------------------------------------------------------------- 表格 */
.table-wrap { overflow-x: auto; }
table.data {
    width: 100%; border-collapse: collapse; font-size: 13px;
}
table.data th {
    text-align: left; font-weight: 500; color: var(--text-3);
    padding: 10px 12px; border-bottom: 1px solid var(--border);
    font-size: 12px; white-space: nowrap;
    position: sticky; top: 0; background: var(--bg-panel);
}
table.data td {
    padding: 11px 12px; border-bottom: 1px solid var(--border-soft);
    vertical-align: middle;
}
table.data tbody tr:hover { background: var(--bg-hover); }
table.data tbody tr:last-child td { border-bottom: none; }

/* ------------------------------------------------------------- 徽章 */
.badge {
    display: inline-flex; align-items: center; gap: 5px;
    padding: 3px 9px; border-radius: 999px;
    font-size: 11px; border: 1px solid var(--border);
    background: var(--bg-elevated); color: var(--text-2);
    white-space: nowrap;
}
.badge .d { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.st-REPORTED    { color: #93C5FD; border-color: rgba(147,197,253,.3); }
.st-OPEN        { color: #7DD3FC; border-color: rgba(125,211,252,.3); }
.st-ASSIGNED    { color: #A5B4FC; border-color: rgba(165,180,252,.3); }
.st-IN_PROGRESS { color: #22D3EE; border-color: rgba(34,211,238,.35); }
.st-ON_HOLD     { color: #FBBF24; border-color: rgba(251,191,36,.3); }
.st-ESCALATED   { color: #FCA5A5; border-color: rgba(252,165,165,.35); }
.st-RETURNED    { color: #FDBA74; border-color: rgba(253,186,116,.3); }
.st-RESOLVED    { color: #6EE7B7; border-color: rgba(110,231,183,.3); }
.st-CLOSED      { color: #9AA8C0; border-color: rgba(154,168,192,.3); }
.st-CANCELLED   { color: #6B7A94; border-color: rgba(107,122,148,.3); }

.pri-P0 { color: var(--p0); border-color: rgba(248,113,113,.4); font-weight: 500; }
.pri-P1 { color: var(--p1); border-color: rgba(251,191,36,.35); }
.pri-P2 { color: var(--p2); border-color: rgba(96,165,250,.3); }
.pri-P3 { color: var(--p3); }

/* ------------------------------------------------------------- 按钮 */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 14px; border-radius: var(--radius-s);
    border: 1px solid var(--border); background: var(--bg-elevated);
    color: var(--text-1); font-size: 13px; cursor: pointer;
    font-family: inherit;
    transition: background .15s, border-color .15s, transform .1s;
}
.btn:hover { background: var(--bg-hover); border-color: var(--border-glow); }
.btn:active { transform: translateY(1px); }
.btn-primary {
    background: var(--accent-grad); color: #06121f; border: none; font-weight: 500;
    box-shadow: var(--glow);
}
.btn-primary:hover { filter: brightness(1.08); }
.btn-danger  { color: var(--danger); border-color: rgba(248,113,113,.35); }
.btn-danger:hover { background: rgba(248,113,113,.12); }
.btn-ghost { background: transparent; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-row { display: flex; flex-wrap: wrap; gap: 8px; }

/* ------------------------------------------------------------- 表单 */
.field { margin-bottom: 14px; }
.field label {
    display: block; font-size: 12px; color: var(--text-2); margin-bottom: 6px;
}
.field label .req { color: var(--danger); }
.field .tip { font-size: 11px; color: var(--text-3); margin-top: 5px; }

input[type=text], input[type=password], input[type=number], input[type=email],
input[type=date], input[type=datetime-local], select, textarea {
    width: 100%; padding: 9px 12px;
    background: var(--bg-base); color: var(--text-1);
    border: 1px solid var(--border); border-radius: var(--radius-s);
    font-size: 13px; font-family: inherit;
    transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(34,211,238,.12);
}
textarea { min-height: 92px; resize: vertical; }
select option { background: var(--bg-panel); }

.form-row { display: grid; gap: 14px; grid-template-columns: repeat(2, minmax(0,1fr)); }
.form-row-3 { display: grid; gap: 14px; grid-template-columns: repeat(3, minmax(0,1fr)); }

.filter-bar {
    display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end;
    padding: 14px; background: var(--bg-panel);
    border: 1px solid var(--border); border-radius: var(--radius);
    margin-bottom: 16px;
}
.filter-bar .field { margin: 0; min-width: 140px; }
.filter-bar .field.grow { flex: 1; min-width: 200px; }

/* ------------------------------------------------------------- 时间轴 */
.timeline { position: relative; padding-left: 22px; }
.timeline::before {
    content: ""; position: absolute; left: 6px; top: 6px; bottom: 6px;
    width: 1px; background: var(--border);
}
.tl-item { position: relative; padding-bottom: 18px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
    content: ""; position: absolute; left: -19px; top: 6px;
    width: 9px; height: 9px; border-radius: 50%;
    background: var(--bg-panel); border: 2px solid var(--accent);
    box-shadow: 0 0 8px rgba(34,211,238,.5);
}
.tl-item.is-minor::before { border-color: var(--text-3); box-shadow: none; }
.tl-head { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.tl-action { font-size: 13px; font-weight: 500; }
.tl-time { font-size: 11px; color: var(--text-3); }
.tl-actor { font-size: 12px; color: var(--text-2); }
.tl-comment {
    margin-top: 6px; padding: 9px 12px;
    background: var(--bg-elevated); border: 1px solid var(--border-soft);
    border-radius: var(--radius-s); font-size: 13px; color: var(--text-2);
    white-space: pre-wrap; word-break: break-word;
}
.tl-change { font-size: 11px; color: var(--text-3); margin-top: 4px; }

/* ------------------------------------------------------------- 提示条 */
.flash-stack { margin-bottom: 16px; }
.flash {
    padding: 10px 14px; border-radius: var(--radius-s);
    margin-bottom: 8px; font-size: 13px;
    border: 1px solid var(--border); background: var(--bg-elevated);
}
.flash-success { border-color: rgba(52,211,153,.35); color: #6EE7B7; background: rgba(52,211,153,.08); }
.flash-error   { border-color: rgba(248,113,113,.35); color: #FCA5A5; background: rgba(248,113,113,.08); }
.flash-warning { border-color: rgba(251,191,36,.35); color: #FCD34D; background: rgba(251,191,36,.08); }
.flash-info    { border-color: rgba(96,165,250,.35); color: #93C5FD; background: rgba(96,165,250,.08); }

/* ------------------------------------------------------------- 空状态 */
.empty {
    padding: 46px 20px; text-align: center; color: var(--text-3);
}
.empty .emo { font-size: 30px; margin-bottom: 10px; opacity: .5; }

/* ------------------------------------------------------------- 分页 */
.pager { display: flex; align-items: center; gap: 6px; margin-top: 16px; flex-wrap: wrap; }
.pager-btn {
    padding: 6px 11px; border-radius: var(--radius-s);
    border: 1px solid var(--border); color: var(--text-2);
    background: var(--bg-elevated); font-size: 12px;
}
.pager-btn:hover { background: var(--bg-hover); color: var(--text-1); }
.pager-btn.is-active { background: var(--accent-grad); color: #06121f; border-color: transparent; }
.pager-btn.is-disabled { opacity: .4; pointer-events: none; }
.pager-gap, .pager-info { color: var(--text-3); font-size: 12px; margin-left: 6px; }

/* ------------------------------------------------------------- 登录 */
.auth-wrap {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    padding: 24px; position: relative; z-index: 1;
}
.auth-card {
    width: 100%; max-width: 400px;
    background: var(--bg-panel); border: 1px solid var(--border);
    border-radius: 16px; padding: 32px;
    box-shadow: var(--shadow), var(--glow);
}
.auth-card .brand { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.auth-card .brand .logo {
    width: 38px; height: 38px; border-radius: 10px;
    background: var(--accent-grad); box-shadow: var(--glow);
}
.auth-card .brand .name { font-size: 16px; font-weight: 500; }
.auth-card .brand small { display: block; color: var(--text-3); font-size: 12px; font-weight: 400; }
.auth-card h1 { font-size: 18px; margin-bottom: 20px; }

/* ------------------------------------------------------------- 杂项 */
.muted { color: var(--text-3); }
.small { font-size: 12px; }
.mono { font-family: ui-monospace, Consolas, "Courier New", monospace; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.divider { height: 1px; background: var(--border); margin: 16px 0; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

.kv { display: grid; grid-template-columns: 96px 1fr; gap: 8px 12px; font-size: 13px; }
.kv dt { color: var(--text-3); }
.kv dd { margin: 0; }

.plan-card {
    background: var(--bg-elevated); border: 1px dashed var(--border);
    border-radius: var(--radius); padding: 14px 16px;
}
.plan-card .name { font-size: 13px; font-weight: 500; }
.plan-card .desc { font-size: 12px; color: var(--text-3); margin-top: 4px; }

.report-card {
    background: var(--bg-panel); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 18px;
    transition: border-color .15s, transform .15s;
}
.report-card:hover { border-color: var(--border-glow); transform: translateY(-2px); }
.report-card .ico {
    width: 38px; height: 38px; border-radius: 10px;
    background: var(--accent-grad); opacity: .9;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; margin-bottom: 12px;
}

/* 附件列表 */
.att-list { display: flex; flex-direction: column; gap: 8px; }
.att-item {
    display: flex; align-items: center; justify-content: space-between; gap: 10px;
    padding: 9px 12px; background: var(--bg-elevated);
    border: 1px solid var(--border-soft); border-radius: var(--radius-s);
    font-size: 13px;
}
.att-item .fn { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 响应式 */
@media (max-width: 1279px) {
    .grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 900px) {
    .sidebar { position: fixed; left: 0; top: 0; z-index: 60; transform: translateX(-100%); transition: transform .2s; }
    .sidebar.is-open { transform: translateX(0); }
    .main { width: 100%; }
    .grid-4, .grid-3, .grid-2, .form-row, .form-row-3 { grid-template-columns: 1fr; }
    .content { padding: 14px; }
    .hamburger { display: inline-flex !important; }
    .kv { grid-template-columns: 1fr; }
}
.hamburger {
    display: none; background: transparent; border: 1px solid var(--border);
    color: var(--text-1); border-radius: var(--radius-s);
    padding: 6px 10px; cursor: pointer; font-size: 14px;
}
.scrim {
    display: none; position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 50;
}
.scrim.is-open { display: block; }

@media print {
    body::before, .sidebar, .topbar, .btn, .pager { display: none !important; }
    body { background: #fff; color: #000; }
    .card { border-color: #ccc; }
}