:root {
    color-scheme: light;
    --bg: #f5f7fb;
    --panel: #ffffff;
    --text: #19202a;
    --muted: #667085;
    --line: #d9e0ea;
    --primary: #1769e0;
    --primary-dark: #1054b4;
    --danger: #b42318;
    --warning: #8a5a00;
    --ok: #087443;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
    color: inherit;
}

.shell {
    width: min(960px, calc(100% - 32px));
    margin: 0 auto;
    padding: 24px 0 48px;
}

.shell.wide {
    width: min(1440px, calc(100% - 32px));
}

.home {
    display: grid;
    gap: 20px;
    min-height: 100vh;
    align-content: center;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
    font-weight: 700;
}

.topbar a {
    text-decoration: none;
}

.hero,
.panel,
.note-band {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 28px;
}

.hero h1,
.panel h1 {
    margin: 0 0 12px;
    font-size: clamp(28px, 4vw, 48px);
    line-height: 1.05;
    letter-spacing: 0;
}

.panel h1 {
    font-size: 30px;
}

.eyebrow,
.label,
label {
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}

.muted {
    color: var(--muted);
}

.actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
    margin-top: 18px;
}

.button {
    display: inline-flex;
    min-height: 42px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 0 16px;
    background: #fff;
    color: var(--text);
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}

.button.primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.button.primary:hover {
    background: var(--primary-dark);
}

.button:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.field {
    display: grid;
    gap: 8px;
    margin: 18px 0;
}

input[type="file"],
input[type="text"] {
    width: 100%;
    min-height: 44px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 8px 12px;
    background: #fff;
    color: var(--text);
    font: inherit;
}

.code-input input {
    max-width: 180px;
    font-size: 24px;
    font-weight: 800;
    letter-spacing: 0;
}

.hidden {
    display: none !important;
}

.error {
    color: var(--danger);
    font-weight: 700;
}

.warning {
    color: var(--warning);
    font-weight: 700;
}

.code-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.code {
    display: block;
    font-size: 48px;
    letter-spacing: 0;
}

.status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin: 0 0 22px;
}

.status-grid div {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    background: #fafcff;
    min-width: 0;
}

.status-grid dt {
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}

.status-grid dd {
    margin: 6px 0 0;
    overflow-wrap: anywhere;
    font-weight: 700;
}

.progress-wrap {
    display: grid;
    gap: 10px;
}

progress {
    width: 100%;
    height: 18px;
    accent-color: var(--primary);
}

.progress-meta {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    color: var(--muted);
    font-weight: 700;
}

.note-band {
    display: grid;
    gap: 6px;
}

.note-band p {
    margin: 0;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

th,
td {
    border-bottom: 1px solid var(--line);
    padding: 8px;
    text-align: left;
    white-space: nowrap;
}

th {
    color: var(--muted);
}

@media (max-width: 640px) {
    .hero,
    .panel,
    .note-band {
        padding: 20px;
    }

    .code {
        font-size: 40px;
    }
}