:root {
    color-scheme: light;
    --bg: #f6f7f9;
    --panel: #ffffff;
    --text: #18202b;
    --muted: #687385;
    --line: #dfe4ea;
    --accent: #2563eb;
}

* {
    box-sizing: border-box;
}

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

a {
    color: var(--accent);
}

button,
.button {
    border: 0;
    border-radius: 6px;
    background: var(--accent);
    color: white;
    cursor: pointer;
    display: inline-block;
    font: inherit;
    padding: 0.65rem 0.9rem;
    text-decoration: none;
}

.app-header {
    align-items: center;
    background: var(--panel);
    border-bottom: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    min-height: 60px;
    padding: 0 1rem;
}

.brand {
    color: var(--text);
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
}

.nav {
    align-items: center;
    display: flex;
    gap: 0.8rem;
}

.nav form {
    margin: 0;
}

.nav button {
    background: #475569;
}

.page {
    padding: 1rem;
}

.messages {
    padding: 0.75rem 1rem 0;
}

.message {
    background: #e8f2ff;
    border: 1px solid #bfd7ff;
    border-radius: 6px;
    margin: 0;
    padding: 0.75rem;
}

.auth-panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    margin: 2rem auto;
    max-width: 440px;
    padding: 1.25rem;
}

.form p {
    display: grid;
    gap: 0.35rem;
}

.form input {
    border: 1px solid var(--line);
    border-radius: 6px;
    font: inherit;
    padding: 0.65rem;
    width: 100%;
}

.toolbar {
    align-items: center;
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.toolbar h1 {
    font-size: clamp(1.3rem, 2vw, 1.8rem);
    margin: 0 0 0.25rem;
}

.toolbar p {
    color: var(--muted);
    margin: 0;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.calendar-shell {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow-x: auto;
}

.time-header,
.vehicle-row {
    display: grid;
    grid-template-columns: 220px minmax(960px, 1fr);
}

.vehicle-head,
.vehicle-name {
    border-right: 1px solid var(--line);
    font-weight: 650;
    padding: 0.75rem;
}

.hours {
    color: var(--muted);
    display: grid;
    font-size: 0.8rem;
    grid-template-columns: repeat(12, 1fr);
    padding: 0.75rem;
}

.vehicle-row {
    border-top: 1px solid var(--line);
    min-height: 82px;
}

.vehicle-name {
    align-items: center;
    display: flex;
    gap: 0.55rem;
}

.swatch {
    border-radius: 3px;
    display: inline-block;
    height: 18px;
    width: 18px;
}

.timeline {
    background-image: repeating-linear-gradient(
        to right,
        transparent 0,
        transparent calc(100% / 48 - 1px),
        #edf0f4 calc(100% / 48 - 1px),
        #edf0f4 calc(100% / 48)
    );
    min-height: 82px;
    padding: 0.6rem;
    position: relative;
}

.booking {
    border-radius: 6px;
    color: #111827;
    display: grid;
    font-size: 0.82rem;
    min-width: 110px;
    opacity: 0.82;
    overflow: hidden;
    padding: 0.5rem;
    position: absolute;
    top: 0.55rem;
    bottom: 0.55rem;
    text-decoration: none;
}

.booking strong {
    font-size: 0.9rem;
}

.form-page {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    max-width: 920px;
    padding: 1.25rem;
}

.form-header {
    align-items: flex-start;
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.form-header h1,
.form-page h1 {
    margin: 0 0 0.35rem;
}

.form-header p {
    color: var(--muted);
    margin: 0;
}

.data-form {
    display: grid;
    gap: 1rem;
}

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

.data-form label {
    display: grid;
    font-weight: 650;
    gap: 0.35rem;
}

.input,
.data-form select,
.data-form input,
.data-form textarea {
    border: 1px solid var(--line);
    border-radius: 6px;
    font: inherit;
    padding: 0.65rem;
    width: 100%;
}

.wide-field {
    display: grid;
}

.form-actions {
    align-items: center;
    display: flex;
    gap: 0.8rem;
}

.danger-button {
    background: #b91c1c;
}

.danger-link {
    color: #b91c1c;
    font-weight: 650;
}

.errorlist,
.form-errors {
    color: #b91c1c;
    font-weight: 500;
    margin: 0;
}

.empty {
    padding: 1rem;
}

@media (max-width: 720px) {
    .app-header,
    .toolbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .nav {
        flex-wrap: wrap;
    }

    .time-header,
    .vehicle-row {
        grid-template-columns: 150px minmax(780px, 1fr);
    }

    .page {
        padding: 0.75rem;
    }

    .form-grid,
    .form-header {
        grid-template-columns: 1fr;
    }

    .form-header {
        display: grid;
    }
}