/* ============================================================
   CostMatrix (价析) 主样式表
   ============================================================ */

:root {
    --color-bg: #f5f7fb;
    --color-surface: #ffffff;
    --color-border: #e5e9f2;
    --color-text: #1f2937;
    --color-muted: #6b7280;
    --color-primary: #4f46e5;
    --color-primary-dark: #4338ca;
    --color-primary-soft: #eef2ff;
    --color-green: #059669;
    --color-green-soft: #ecfdf5;
    --color-red: #dc2626;
    --color-red-soft: #fef2f2;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow-sm: 0 1px 2px rgba(16, 24, 40, .06);
    --shadow: 0 4px 16px rgba(16, 24, 40, .08);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
            "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --mono: "SF Mono", "JetBrains Mono", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

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

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- 顶栏 ---------- */
.topbar {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 50;
}
.topbar-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px; height: 34px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--color-primary), #7c3aed);
    color: #fff;
    font-weight: 700;
    font-size: 15px;
}
.brand-name { font-weight: 600; color: var(--color-text); letter-spacing: .3px; }
.topbar-nav { display: flex; align-items: center; gap: 18px; }
.nav-link { color: var(--color-muted); font-weight: 500; }
.nav-link:hover { color: var(--color-primary); text-decoration: none; }
.nav-link-muted { color: var(--color-muted); font-size: 13px; }
.user-menu { display: flex; align-items: center; gap: 8px; }
.user-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px; height: 28px;
    border-radius: 50%;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
}
.user-name { color: var(--color-text); font-weight: 500; font-size: 13px; }

/* ---------- 容器 ---------- */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 28px 24px 48px;
}

/* ---------- 卡片 ---------- */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.card-head {
    padding: 18px 22px;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: baseline;
    gap: 12px;
    flex-wrap: wrap;
}
.card-title { margin: 0; font-size: 16px; font-weight: 600; }
.card-sub { color: var(--color-muted); font-size: 13px; }

/* ---------- 布局 ---------- */
.calc-layout {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 20px;
    margin-bottom: 24px;
}
@media (max-width: 960px) {
    .calc-layout { grid-template-columns: 1fr; }
}

/* ---------- 表单 ---------- */
.calc-form-card form { padding: 22px; }
.field { margin-bottom: 16px; }
.field label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 13px;
    color: var(--color-text);
}
.field .opt { color: var(--color-muted); font-weight: 400; font-size: 12px; }
.field input[type="text"],
.field input[type="email"],
.field input[type="number"],
.field input[type="password"] {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: var(--font);
    background: #fff;
    transition: border-color .15s, box-shadow .15s;
}
.field input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, .12);
}
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
@media (max-width: 520px) {
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

fieldset.fieldset {
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-sm);
    padding: 16px 16px 4px;
    margin: 0 0 20px;
}
fieldset.fieldset legend {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-muted);
    padding: 0 8px;
    letter-spacing: .5px;
}

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 18px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    font-family: var(--font);
    cursor: pointer;
    transition: background .15s, border-color .15s, color .15s;
    line-height: 1.2;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--color-muted); border-color: var(--color-border); }
.btn-ghost:hover { color: var(--color-text); border-color: #cbd5e1; text-decoration: none; }
.btn-block { width: 100%; }
.btn-link {
    background: none;
    border: none;
    color: var(--color-primary);
    padding: 2px 4px;
    cursor: pointer;
    font-size: 13px;
}
.btn-link:hover { text-decoration: underline; }
.btn-danger { color: var(--color-red); }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 4px; }

/* ---------- 结果面板 ---------- */
.calc-result-card { display: flex; flex-direction: column; }
.badge {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .3px;
}
.badge-live { background: var(--color-green-soft); color: var(--color-green); }

.result-summary { padding: 22px; border-bottom: 1px solid var(--color-border); }
.metric { display: flex; flex-direction: column; gap: 4px; }
.metric-label { font-size: 12px; color: var(--color-muted); }
.metric-value {
    font-size: 18px;
    font-weight: 600;
    font-family: var(--mono);
    color: var(--color-text);
}
.metric-primary { margin-bottom: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--color-border); }
.metric-primary .metric-value { font-size: 30px; color: var(--color-primary); }
.metric-green { color: var(--color-green) !important; }

.fee-table-wrap { padding: 18px 22px 6px; }
.fee-table, .data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
.fee-table th, .fee-table td,
.data-table th, .data-table td {
    padding: 9px 10px;
    text-align: left;
}
.fee-table th {
    font-size: 12px;
    color: var(--color-muted);
    font-weight: 500;
    border-bottom: 1px solid var(--color-border);
    text-transform: uppercase;
    letter-spacing: .4px;
}
.fee-table td { border-bottom: 1px solid #f1f5f9; }
.fee-table tr:last-child td { border-bottom: none; }
.ta-right { text-align: right; }
.ta-center { text-align: center; }
.ta-left { text-align: left; }
.result-note { padding: 0 22px 18px; margin: 0; color: var(--color-red); font-size: 13px; min-height: 18px; }

/* ---------- 数据表格 ---------- */
.history-card { margin-bottom: 24px; }
.table-wrap { padding: 8px 22px 18px; overflow-x: auto; }
.data-table th {
    font-size: 12px;
    color: var(--color-muted);
    font-weight: 500;
    border-bottom: 2px solid var(--color-border);
    white-space: nowrap;
}
.data-table td {
    border-bottom: 1px solid #f1f5f9;
    white-space: nowrap;
}
.data-table tbody tr:hover { background: #fafbff; }
.profit { color: var(--color-green); font-family: var(--mono); font-weight: 500; }
.muted { color: var(--color-muted); }
.sm { font-size: 12px; }
.inline-form { display: inline; }
.empty-state {
    padding: 32px 22px;
    text-align: center;
    color: var(--color-muted);
}

/* ---------- 提示 ---------- */
.alert {
    padding: 12px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: 18px;
    font-size: 14px;
    border: 1px solid transparent;
}
.alert-success { background: var(--color-green-soft); color: var(--color-green); border-color: #a7f3d0; }
.alert-error { background: var(--color-red-soft); color: var(--color-red); border-color: #fecaca; }

/* ---------- 页脚 ---------- */
.footer {
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px;
    text-align: center;
    color: var(--color-muted);
    font-size: 12px;
    border-top: 1px solid var(--color-border);
}

/* ---------- 认证页 ---------- */
.auth-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #eef2ff 0%, #f5f7fb 50%, #faf5ff 100%);
    padding: 24px;
}
.auth-wrap { width: 100%; max-width: 400px; }
.auth-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 24px;
    text-decoration: none;
}
.auth-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 32px 28px;
}
.auth-title { margin: 0 0 4px; font-size: 22px; font-weight: 600; }
.auth-sub { margin: 0 0 22px; color: var(--color-muted); font-size: 13px; }
.auth-form .field { margin-bottom: 16px; }
.auth-form .btn-block { margin-top: 6px; }
.auth-foot {
    margin: 18px 0 0;
    text-align: center;
    color: var(--color-muted);
    font-size: 13px;
}

/* ---------- 安装页扩展 ---------- */
.install-checks { margin: 16px 0; }
.install-checks .check {
    margin: 0 0 6px;
    font-size: 12px;
    font-family: var(--mono);
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    background: #f8fafc;
}
.check-ok { color: var(--color-green); }
.check-ok::before { content: "\2713  "; font-weight: 700; }
.check-fail { color: var(--color-red); }
.check-fail::before { content: "\2717  "; font-weight: 700; }
code {
    background: #f1f5f9;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: var(--mono);
    font-size: 12px;
}