:root {
    --bg: #f3f5f9;
    --panel: #ffffff;
    --panel-soft: #eef2f7;
    --text: #162033;
    --muted: #5a6579;
    --line: #d7deea;
    --primary: #1166d8;
    --primary-dark: #0d4ea5;
    --danger: #bf2f45;
    --warning: #c47a00;
    --success: #1f7a4d;
    --radius: 8px;
    --shadow: 0 8px 30px rgba(17, 36, 74, 0.08);
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}
a { color: var(--primary); text-decoration: none; }
img { max-width: 100%; display: block; }
.app-shell { min-height: 100vh; }
.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    background: #0f1728;
    color: #fff;
    padding: 12px 16px;
    box-shadow: var(--shadow);
}
.topbar-row, .nav-row, .page-actions, .metric-grid, .mobile-actions, .card-grid, .two-col, .three-col, .list-inline {
    display: grid;
    gap: 12px;
}
.topbar-row { grid-template-columns: 1fr auto; align-items: center; }
.topbar-left {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}
.brand { font-weight: 700; font-size: 18px; color: #fff; }
.muted { color: var(--muted); }
.container { width: min(1100px, 100% - 24px); margin: 0 auto; padding: 16px 0 32px; }
.nav-row {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    margin-top: 12px;
}
.nav-drawer[hidden] { display: none; }
.nav-drawer {
    margin-top: 12px;
    padding: 12px;
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 8px;
    background: rgba(255,255,255,0.06);
}
.menu-toggle {
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid rgba(255,255,255,0.16);
    border-radius: 8px;
    background: rgba(255,255,255,0.08);
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    cursor: pointer;
}
.menu-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    margin: 0 auto;
    background: #fff;
}
.nav-link, .btn {
    border-radius: var(--radius);
    border: 1px solid transparent;
    min-height: 44px;
    padding: 10px 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 14px;
    cursor: pointer;
}
.nav-link { background: rgba(255,255,255,0.08); color: #fff; }
.btn { background: var(--primary); color: #fff; }
.btn.secondary { background: #fff; color: var(--text); border-color: var(--line); }
.btn.warning { background: var(--warning); }
.btn.danger { background: var(--danger); }
.btn.success { background: var(--success); }
.card, .panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.card { padding: 16px; }
.panel { overflow: hidden; }
.panel-head { padding: 14px 16px; border-bottom: 1px solid var(--line); background: var(--panel-soft); }
.panel-body { padding: 16px; }
.page-head { display: grid; gap: 12px; margin-bottom: 16px; }
.page-actions { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
.metric-grid { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); margin-bottom: 16px; }
.metric { padding: 14px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.metric strong { display: block; font-size: 26px; }
.card-grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.two-col { grid-template-columns: 1fr; }
.three-col { grid-template-columns: 1fr; }
.mobile-actions { grid-template-columns: repeat(2, 1fr); }
.mobile-actions .btn { min-height: 56px; font-weight: 700; }
form { display: grid; gap: 12px; }
label { display: grid; gap: 6px; font-size: 14px; color: var(--muted); }
input, select, textarea {
    width: 100%;
    min-height: 44px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px 12px;
    font: inherit;
    background: #fff;
    color: var(--text);
}
textarea { min-height: 100px; resize: vertical; }
table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}
th, td {
    border-bottom: 1px solid var(--line);
    padding: 10px;
    text-align: left;
    vertical-align: top;
    font-size: 14px;
}
.table-wrap { overflow-x: auto; }
.status {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 6px 10px;
    font-size: 12px;
    font-weight: 700;
    background: var(--panel-soft);
}
.flash {
    padding: 12px 14px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    border: 1px solid var(--line);
}
.flash.error { background: #fff1f3; color: #7f1530; border-color: #f2c4cf; }
.flash.success { background: #edf9f1; color: #125132; border-color: #c0e5ce; }
.section-stack { display: grid; gap: 16px; }
.thumb-grid {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}
.thumb-card {
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
    background: #fff;
}
.thumb-card img { aspect-ratio: 4 / 3; object-fit: cover; background: #e9edf4; }
.thumb-card .meta { padding: 10px; font-size: 13px; }
.capture-shell {
    display: grid;
    gap: 16px;
}
.camera-preview,
.audio-panel {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    overflow: hidden;
}
.camera-preview video,
.camera-preview canvas {
    width: 100%;
    max-height: 55vh;
    background: #0f1728;
}
.capture-actions {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(2, 1fr);
}
.capture-status {
    padding: 10px 12px;
    border-radius: 8px;
    background: var(--panel-soft);
    color: var(--text);
    font-size: 13px;
}
.fallback-box {
    padding-top: 12px;
    border-top: 1px solid var(--line);
}
.audio-timer {
    font-size: 24px;
    font-weight: 700;
}
.hidden-input {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}
.auth-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 16px;
}
.auth-card {
    width: min(420px, 100%);
    background: #fff;
    border-radius: 8px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    padding: 20px;
}
.login-logo {
    max-width: 220px;
    width: 100%;
    height: auto;
    margin: 0 auto 16px;
}
.inline-form { display: inline; }
.small { font-size: 12px; }
.pre {
    white-space: pre-wrap;
    word-break: break-word;
    background: #0f1728;
    color: #ebf0f8;
    padding: 12px;
    border-radius: 8px;
    overflow: auto;
}
details.card > summary {
    cursor: pointer;
    font-weight: 700;
}

@media (min-width: 768px) {
    .two-col { grid-template-columns: 1fr 1fr; }
    .three-col { grid-template-columns: repeat(3, 1fr); }
    .mobile-actions { grid-template-columns: repeat(3, 1fr); }
    .capture-actions { grid-template-columns: repeat(4, 1fr); }
}