:root {
    --bg: #F4F7F5;
    --surface: #FFFFFF;
    --surface-2: #F8FAF9;
    --surface-hover: #F1F7F3;
    --border: #E2E9E4;
    --border-strong: #CFDAD2;
    --ink: #0F2418;
    --ink-soft: #4B5F53;
    --ink-faint: #8A9A90;
    --accent: #16A34A;
    --accent-hover: #15803D;
    --accent-strong: #166534;
    --accent-ink: #FFFFFF;
    --accent-tint: rgba(22, 163, 74, 0.10);
    --accent-tint-2: rgba(22, 163, 74, 0.18);
    --danger: #B91C1C;
    --danger-tint: rgba(220, 38, 38, 0.08);
    --warn: #A16207;
    --warn-tint: rgba(234, 179, 8, 0.12);
    --shadow-sm: 0 1px 2px rgba(15, 36, 24, 0.05);
    --shadow-md: 0 4px 16px rgba(15, 36, 24, 0.06), 0 1px 3px rgba(15, 36, 24, 0.05);
    --shadow-lg: 0 24px 60px rgba(15, 36, 24, 0.18);
    --radius: 12px;
    --mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
}

svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
code { font-family: var(--mono); font-size: 0.92em; background: var(--surface-2); border: 1px solid var(--border); border-radius: 4px; padding: 0 4px; }
.hidden { display: none !important; }
.mono { font-family: var(--mono) !important; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    border-radius: 8px;
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background .15s, border-color .15s, color .15s, box-shadow .15s;
    white-space: nowrap;
}
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 1px 2px rgba(22, 101, 52, .25), inset 0 1px 0 rgba(255,255,255,.15); }
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }
.btn-secondary { background: var(--surface); color: var(--ink); border-color: var(--border-strong); box-shadow: var(--shadow-sm); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent-hover); }
.btn-ghost { background: transparent; color: var(--ink-soft); border-color: var(--border); }
.btn-ghost:hover { color: var(--ink); background: var(--surface-2); }
.btn-sm { padding: 6px 11px; font-size: 12px; }
.btn-block { width: 100%; padding: 10px; }
.icon-btn { background: none; border: none; font-size: 22px; line-height: 1; color: var(--ink-faint); cursor: pointer; padding: 2px 6px; border-radius: 6px; }
.icon-btn:hover { color: var(--ink); background: var(--surface-2); }
.link-btn { background: none; border: none; color: var(--accent-hover); font-weight: 600; font-size: 12px; cursor: pointer; padding: 0; font-family: inherit; text-transform: none; letter-spacing: 0; }
.link-btn:hover { text-decoration: underline; }

/* ---------- Brand ---------- */
.brand { display: flex; align-items: center; gap: 11px; }
.brand-mark {
    width: 34px; height: 34px;
    border-radius: 9px;
    background: linear-gradient(140deg, #22C55E, #15803D);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 2px 6px rgba(22, 163, 74, .35);
}
.brand-mark svg { width: 20px; height: 20px; stroke-width: 1.8; }
.brand-mark-lg { width: 54px; height: 54px; border-radius: 14px; margin: 0 auto 18px; }
.brand-mark-lg svg { width: 30px; height: 30px; }
.brand-name { font-weight: 700; font-size: 15px; letter-spacing: -.01em; }
.brand-sub { font-size: 11.5px; color: var(--ink-faint); }

/* ---------- Login ---------- */
.login-screen {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background:
        radial-gradient(circle at 15% 15%, rgba(34, 197, 94, 0.14), transparent 40%),
        radial-gradient(circle at 85% 85%, rgba(22, 163, 74, 0.10), transparent 45%),
        var(--bg);
}
.login-card {
    width: 100%;
    max-width: 380px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 38px 34px 32px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}
.login-card h1 { font-size: 21px; margin: 0; letter-spacing: -.02em; }
.login-sub { color: var(--ink-soft); font-size: 13px; margin: 6px 0 28px; }
.login-card form { text-align: left; }
.login-foot { margin-top: 20px; font-size: 12px; color: var(--ink-faint); }
.login-error, .form-error {
    margin: 14px 0 0;
    font-size: 12.5px;
    color: var(--danger);
    background: var(--danger-tint);
    border-radius: 8px;
    padding: 9px 11px;
}

/* ---------- Forms ---------- */
.field { margin-bottom: 16px; display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 12px; font-weight: 600; color: var(--ink-soft); }
.optional { font-weight: 400; color: var(--ink-faint); }
.field input[type=text], .field input[type=password] {
    background: var(--surface);
    border: 1px solid var(--border-strong);
    color: var(--ink);
    border-radius: 8px;
    padding: 9px 11px;
    font-size: 13.5px;
    font-family: inherit;
    transition: border-color .15s, box-shadow .15s;
}
.field input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-tint); }
.hint { font-size: 11.5px; color: var(--ink-faint); line-height: 1.45; }

.segmented { display: inline-flex; background: var(--surface-2); border: 1px solid var(--border); border-radius: 9px; padding: 3px; gap: 2px; align-self: flex-start; }
.segmented button {
    background: none; border: none; padding: 6px 14px; border-radius: 6px;
    font-size: 12.5px; font-weight: 600; color: var(--ink-soft); cursor: pointer; font-family: inherit;
}
.segmented button.active { background: var(--surface); color: var(--accent-hover); box-shadow: var(--shadow-sm), 0 0 0 1px var(--border); }

/* ---------- Topbar ---------- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 28px;
    background: rgba(255, 255, 255, .88);
    backdrop-filter: saturate(180%) blur(10px);
    border-bottom: 1px solid var(--border);
}
.topbar-right { display: flex; align-items: center; gap: 14px; }
.divider-v { width: 1px; height: 22px; background: var(--border); }

.live-pill {
    display: inline-flex; align-items: center; gap: 7px;
    font-size: 12px; font-weight: 600;
    color: var(--accent-strong);
    background: var(--accent-tint);
    border-radius: 999px;
    padding: 5px 11px 5px 9px;
}
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); position: relative; }
.live-dot::after {
    content: ''; position: absolute; inset: -4px; border-radius: 50%;
    background: var(--accent); opacity: .35; animation: pulse 1.6s ease-out infinite;
}
.live-pill.paused { color: var(--warn); background: var(--warn-tint); }
.live-pill.paused .live-dot { background: #CA8A04; }
.live-pill.paused .live-dot::after { animation: none; opacity: 0; }
@keyframes pulse { from { transform: scale(.6); opacity: .5; } to { transform: scale(1.6); opacity: 0; } }

.switch { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: 12.5px; color: var(--ink-soft); font-weight: 500; }
.switch input { position: absolute; opacity: 0; pointer-events: none; }
.switch-track { width: 34px; height: 20px; border-radius: 999px; background: var(--border-strong); position: relative; transition: background .2s; }
.switch-thumb { position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.2); transition: transform .2s; }
.switch input:checked + .switch-track { background: var(--accent); }
.switch input:checked + .switch-track .switch-thumb { transform: translateX(14px); }
.switch input:focus-visible + .switch-track { box-shadow: 0 0 0 3px var(--accent-tint-2); }

.user-chip { display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px; font-weight: 600; color: var(--ink-soft); }
.avatar { width: 26px; height: 26px; border-radius: 50%; background: var(--accent-tint); color: var(--accent-strong); display: flex; align-items: center; justify-content: center; font-size: 11.5px; font-weight: 700; }

/* ---------- Page ---------- */
main { max-width: 1240px; margin: 0 auto; padding: 28px 28px 60px; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }
.page-head h1 { font-size: 24px; margin: 0; letter-spacing: -.02em; }
.page-sub { margin: 4px 0 0; color: var(--ink-soft); font-size: 13px; }
.page-actions { display: flex; gap: 10px; }

/* ---------- Stat cards (also the type tabs) ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 18px; }
.stat-card {
    text-align: left;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
    cursor: pointer;
    font-family: inherit;
    color: inherit;
    box-shadow: var(--shadow-sm);
    transition: border-color .15s, box-shadow .15s;
    position: relative;
    overflow: hidden;
}
.stat-card:hover { border-color: var(--border-strong); box-shadow: var(--shadow-md); }
.stat-card.active { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-tint), var(--shadow-md); }
.stat-card.active::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--accent); }
.stat-top { display: flex; align-items: center; gap: 9px; }
.stat-icon { width: 30px; height: 30px; border-radius: 8px; background: var(--surface-2); border: 1px solid var(--border); color: var(--ink-soft); display: flex; align-items: center; justify-content: center; }
.stat-card.active .stat-icon { background: var(--accent-tint); border-color: transparent; color: var(--accent-hover); }
.stat-label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft); }
.stat-value { font-size: 28px; font-weight: 700; letter-spacing: -.02em; margin-top: 10px; font-variant-numeric: tabular-nums; }
.stat-meta { font-size: 12px; color: var(--ink-faint); margin-top: 2px; }

/* ---------- Table card ---------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); overflow: hidden; }
.toolbar { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.spacer { flex: 1; }
.search { position: relative; flex: 1; max-width: 420px; min-width: 200px; }
.search svg { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); color: var(--ink-faint); }
#search-input {
    width: 100%;
    background: var(--surface-2);
    border: 1px solid var(--border);
    color: var(--ink);
    border-radius: 8px;
    padding: 8px 12px 8px 34px;
    font-size: 13px;
    font-family: inherit;
    transition: border-color .15s, box-shadow .15s, background .15s;
}
#search-input:focus { outline: none; border-color: var(--accent); background: var(--surface); box-shadow: 0 0 0 3px var(--accent-tint); }
.result-count { font-size: 12px; color: var(--ink-faint); font-variant-numeric: tabular-nums; }
.refresh-note { font-size: 11.5px; color: var(--ink-faint); }

.table-wrap { max-height: calc(100vh - 360px); min-height: 280px; overflow: auto; }
table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 13px; }
thead th {
    position: sticky; top: 0; z-index: 1;
    text-align: left;
    padding: 10px 16px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--ink-faint);
    background: var(--surface-2);
    border-bottom: 1px solid var(--border);
}
.col-name { width: 220px; }
.col-value { width: 170px; }
.col-act { width: 110px; }
tbody td { padding: 10px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--surface-hover); }
tbody tr.row-new td { animation: rownew 2.4s ease-out; }
@keyframes rownew { from { background: var(--accent-tint-2); } to { background: transparent; } }

.var-name { font-family: var(--mono); font-size: 12px; font-weight: 600; color: var(--ink); white-space: nowrap; }
.var-desc { color: var(--ink-soft); font-size: 12.5px; }

.value-cell { white-space: nowrap; }
.var-value { font-family: var(--mono); font-weight: 600; font-variant-numeric: tabular-nums; color: var(--ink); padding: 2px 6px; border-radius: 5px; transition: background .8s; }
.var-value.flash { background: var(--accent-tint-2); transition: none; }

.bit {
    display: inline-flex; align-items: center; gap: 6px;
    font-family: var(--mono); font-size: 11.5px; font-weight: 700;
    border-radius: 999px; padding: 3px 10px 3px 8px;
    border: 1px solid var(--border); background: var(--surface-2); color: var(--ink-faint);
    cursor: pointer; transition: background .2s, color .2s, border-color .2s;
}
.bit::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--border-strong); transition: background .2s; }
.bit.on { background: var(--accent-tint); border-color: transparent; color: var(--accent-strong); }
.bit.on::before { background: var(--accent); box-shadow: 0 0 0 3px rgba(22, 163, 74, .18); }
.bit:hover { border-color: var(--accent); }

.var-value-input {
    width: 120px;
    background: var(--surface);
    border: 1px solid var(--accent);
    box-shadow: 0 0 0 3px var(--accent-tint);
    color: var(--ink);
    border-radius: 6px;
    padding: 5px 8px;
    font-family: var(--mono);
    font-size: 12.5px;
}
.var-value-input:focus { outline: none; }
.row-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--ink-soft);
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 11.5px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    opacity: .75;
}
tbody tr:hover .row-btn { opacity: 1; }
.row-btn:hover { border-color: var(--accent); color: var(--accent-hover); }
.row-btn.save { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); opacity: 1; }
.row-btn.save:hover { background: var(--accent-hover); color: var(--accent-ink); }

.empty-row td { text-align: center; color: var(--ink-faint); padding: 48px; }

/* ---------- Modals ---------- */
.modal-backdrop {
    position: fixed; inset: 0; z-index: 50;
    background: rgba(15, 36, 24, .35);
    backdrop-filter: blur(3px);
    display: flex; align-items: center; justify-content: center;
    padding: 20px;
    animation: fade .15s ease-out;
}
.modal {
    width: 100%; max-width: 500px;
    max-height: calc(100vh - 40px);
    overflow: auto;
    background: var(--surface);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    animation: pop .18s ease-out;
}
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px 0; }
.modal-head h2 { font-size: 16px; margin: 0; letter-spacing: -.01em; }
.modal-body { padding: 18px 22px 6px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; padding: 14px 22px 18px; border-top: 1px solid var(--border); margin-top: 8px; background: var(--surface-2); }
@keyframes fade { from { opacity: 0; } }
@keyframes pop { from { opacity: 0; transform: translateY(8px) scale(.98); } }

.dropzone {
    display: flex; flex-direction: column; align-items: center; gap: 6px;
    border: 1.5px dashed var(--border-strong);
    border-radius: 12px;
    padding: 26px 16px;
    text-align: center;
    cursor: pointer;
    background: var(--surface-2);
    transition: border-color .15s, background .15s;
}
.dropzone svg { width: 26px; height: 26px; color: var(--accent); margin-bottom: 4px; }
.dropzone:hover, .dropzone.drag { border-color: var(--accent); background: var(--accent-tint); }
.dropzone.has-file { border-style: solid; border-color: var(--accent); background: var(--accent-tint); }
.dz-title { font-weight: 600; font-size: 13px; }
.dz-sub { font-size: 12px; color: var(--ink-faint); }

.format-box { margin-top: 14px; border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; }
.format-head { display: flex; justify-content: space-between; align-items: center; font-size: 11.5px; font-weight: 700; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .05em; }
.format-box pre { margin: 8px 0; font-family: var(--mono); font-size: 11.5px; background: var(--surface-2); border-radius: 6px; padding: 8px 10px; overflow-x: auto; color: var(--ink); }
.format-box .hint { margin: 0; }

.import-result { margin-top: 14px; border-radius: 10px; padding: 11px 13px; font-size: 13px; }
.import-result.ok { background: var(--accent-tint); color: var(--accent-strong); }
.import-result.err { background: var(--danger-tint); color: var(--danger); }
.import-result .stats { display: flex; gap: 22px; margin-top: 6px; font-size: 12px; }
.import-result .stats b { font-size: 18px; display: block; }
.import-result .skipped { margin-top: 8px; font-size: 11.5px; font-family: var(--mono); color: var(--warn); word-break: break-all; }

/* ---------- Toasts ---------- */
.toasts { position: fixed; right: 20px; bottom: 20px; z-index: 60; display: flex; flex-direction: column; gap: 8px; }
.toast {
    display: flex; align-items: center; gap: 9px;
    background: var(--ink); color: #fff;
    padding: 10px 14px; border-radius: 10px;
    font-size: 13px; box-shadow: var(--shadow-lg);
    animation: pop .18s ease-out;
    max-width: 360px;
}
.toast::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: #4ADE80; flex-shrink: 0; }
.toast.error::before { background: #F87171; }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
    .topbar { padding: 10px 16px; }
    .live-pill, .user-chip, .divider-v, .switch-label { display: none; }
    main { padding: 20px 16px 40px; }
    .stat-grid { gap: 8px; }
    .stat-card { padding: 12px; }
    .stat-value { font-size: 20px; }
    .stat-meta { display: none; }
    .col-name { width: auto; }
    .table-wrap { max-height: none; }
}