:root {
    color-scheme: light;
    --bg: #f4f7f6;
    --panel: #ffffff;
    --ink: #17211f;
    --muted: #60716c;
    --line: #dce5e2;
    --green: #147a52;
    --green-dark: #0e5c3d;
    --blue: #285a8f;
    --red: #b93535;
    --amber: #93691a;
    --shadow: 0 18px 45px rgba(20, 41, 35, 0.12);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--ink);
    font-family: Arial, Helvetica, sans-serif;
}

a {
    color: inherit;
}

.page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px clamp(18px, 4vw, 56px);
    background: #ffffff;
    border-bottom: 1px solid var(--line);
}

.brand {
    font-size: clamp(17px, 2.8vw, 20px);
    font-weight: 700;
    line-height: 1.25;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.nav-links a,
.nav-links button,
.link-button {
    border: 1px solid var(--line);
    background: #ffffff;
    color: var(--ink);
    border-radius: 6px;
    padding: 10px 14px;
    text-decoration: none;
    font: inherit;
    cursor: pointer;
}

.hero {
    width: min(980px, calc(100% - 32px));
    margin: auto;
    padding: 40px 0;
}

.clock-panel,
.panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.clock-panel {
    display: grid;
    grid-template-columns: minmax(260px, 1fr) minmax(280px, 420px);
    gap: 0;
    overflow: hidden;
}

.time-area {
    padding: clamp(28px, 5vw, 56px);
    background: #12352c;
    color: #ffffff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 390px;
}

.date-label {
    color: #b8d7ce;
    font-size: 17px;
    margin-bottom: 18px;
}

.live-time {
    font-size: clamp(48px, 8vw, 82px);
    line-height: 1;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}

.time-note {
    margin-top: 20px;
    color: #d8ece6;
    font-size: 18px;
}

.form-area {
    padding: clamp(26px, 4vw, 42px);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

h1,
h2 {
    margin: 0 0 10px;
}

.muted {
    color: var(--muted);
    margin: 0 0 24px;
}

label {
    display: block;
    font-weight: 700;
    margin-bottom: 8px;
}

input,
select {
    width: 100%;
    border: 1px solid #b9c7c3;
    border-radius: 6px;
    color: var(--ink);
    font: inherit;
    padding: 13px 14px;
    background: #ffffff;
}

.actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 18px;
}

.button {
    border: 0;
    border-radius: 6px;
    color: #ffffff;
    cursor: pointer;
    font: inherit;
    font-weight: 700;
    padding: 14px 16px;
    text-align: center;
    text-decoration: none;
}

.full-button {
    display: block;
    width: 100%;
}

.confirmation-screen {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 315px;
}

.confirmation-label {
    align-self: flex-start;
    background: #e8f7ef;
    border-radius: 999px;
    color: var(--green-dark);
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 16px;
    padding: 7px 11px;
    text-transform: uppercase;
}

.confirmation-screen h1 {
    font-size: clamp(28px, 6vw, 42px);
    line-height: 1.08;
}

.confirmation-screen p {
    color: var(--muted);
    font-size: 18px;
    line-height: 1.45;
    margin: 8px 0 22px;
}

.confirmation-screen dl {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin: 0 0 20px;
}

.confirmation-screen dl div {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 12px;
}

.confirmation-screen dt {
    color: var(--muted);
    font-size: 13px;
    margin-bottom: 5px;
}

.confirmation-screen dd {
    font-size: 20px;
    font-weight: 700;
    margin: 0;
}

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

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

.button.secondary {
    background: var(--blue);
}

.button.danger {
    background: var(--red);
}

.alert {
    border-radius: 6px;
    margin-bottom: 18px;
    padding: 13px 14px;
    border: 1px solid transparent;
}

.alert.success {
    background: #e8f7ef;
    border-color: #b7e3c7;
    color: #155c33;
}

.alert.error {
    background: #fdecec;
    border-color: #efb8b8;
    color: #8c2525;
}

.content {
    width: min(1120px, calc(100% - 32px));
    margin: 28px auto 48px;
}

.panel {
    padding: clamp(18px, 3vw, 30px);
}

.toolbar {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.toolbar form {
    display: flex;
    align-items: end;
    gap: 10px;
    flex-wrap: wrap;
}

.toolbar label {
    margin-bottom: 6px;
}

.export-links {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: #ffffff;
}

th,
td {
    border-bottom: 1px solid var(--line);
    padding: 12px 10px;
    text-align: left;
}

th {
    color: #40504b;
    font-size: 14px;
}

.badge {
    display: inline-block;
    border-radius: 999px;
    padding: 5px 9px;
    font-size: 13px;
    font-weight: 700;
}

.badge.complete {
    background: #dff3e8;
    color: var(--green-dark);
}

.badge.incomplete {
    background: #fff2d6;
    color: var(--amber);
}

.empty {
    padding: 28px;
    text-align: center;
    color: var(--muted);
    border: 1px dashed #b9c7c3;
    border-radius: 6px;
}

@media (max-width: 760px) {
    body {
        background: #ffffff;
    }

    .hero {
        width: 100%;
        margin: 0;
        padding: 0;
    }

    .clock-panel {
        grid-template-columns: 1fr;
        border-left: 0;
        border-right: 0;
        border-radius: 0;
        box-shadow: none;
    }

    .time-area {
        min-height: 230px;
    }

    .topbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .actions {
        grid-template-columns: 1fr;
    }

    .form-area {
        min-height: calc(100vh - 315px);
    }

    .confirmation-screen dl {
        grid-template-columns: 1fr;
    }

    th,
    td {
        white-space: nowrap;
    }

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

@media (max-width: 430px) {
    .topbar {
        padding: 14px 16px;
    }

    .live-time {
        font-size: 46px;
    }

    .date-label,
    .time-note,
    .confirmation-screen p {
        font-size: 16px;
    }
}