:root {
    --training-ink: #242321;
    --training-paper: #fffef8;
    --training-rule: #bab7ad;
    --training-group-rule: #46433d;
    --training-cursor-color: #ffd84d;
}

.training-hidden {
    display: none !important;
}

.training-app {
    --training-highlight: color-mix(in srgb, var(--training-cursor-color) 58%, transparent);
    --training-highlight-context: color-mix(in srgb, var(--training-cursor-color) 16%, transparent);
    min-height: 100vh;
    color: var(--training-ink);
    background: #ecebe7;
}

.training-ready {
    max-width: 960px;
}

.training-kicker,
.training-toolbar-label {
    color: #68645d;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.training-settings {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    align-items: start;
    max-width: 900px;
    margin: 2rem 0;
}

.training-setting {
    display: grid;
    gap: 0.35rem;
}

.training-setting label {
    font-weight: 650;
}

.training-setting small {
    color: #68645d;
    line-height: 1.35;
}

.training-setting-pattern,
.training-setting-checks {
    grid-column: 1 / -1;
}

.training-setting-checks {
    display: flex;
    gap: 1.5rem;
}

.training-preview {
    overflow-x: auto;
    max-width: 100%;
    margin: 0 0 2rem;
    padding: 1.25rem;
    border: 1px solid #d6d3cb;
    background: var(--training-paper);
    box-shadow: 0 3px 14px rgba(45, 42, 36, 0.08);
}

.training-preview .training-number-grid {
    min-width: 700px;
}

.training-preview:focus {
    outline: 3px solid rgba(13, 110, 253, 0.35);
    outline-offset: 3px;
}

.training-preview-title {
    margin: 0 0 0.6rem;
    font-size: 1rem;
    font-weight: 650;
}

.training-preview-help {
    margin-top: -1.5rem;
    color: #68645d;
    font-size: 0.85rem;
}

.training-ready-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.training-countdown {
    min-height: 100vh;
    display: grid;
    place-content: center;
    text-align: center;
}

.training-countdown p {
    font-size: 1.2rem;
}

.training-countdown strong {
    font-size: clamp(5rem, 18vw, 10rem);
    font-variant-numeric: tabular-nums;
}

.training-workspace {
    padding-bottom: 3rem;
}

.training-toolbar {
    position: sticky;
    z-index: 10;
    top: 0;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem max(1rem, calc((100vw - 1080px) / 2));
    border-bottom: 1px solid #d0cec8;
    background: rgba(250, 249, 246, 0.96);
    backdrop-filter: blur(8px);
}

.training-toolbar > :last-child {
    justify-self: end;
}

.training-timer {
    display: block;
    font-size: 1.4rem;
    font-variant-numeric: tabular-nums;
}

.training-progress {
    width: min(16rem, 32vw);
    height: 0.75rem;
    margin-top: 0.4rem;
    overflow: hidden;
    border: 1px solid #aaa69d;
    border-radius: 999px;
    background: #e2e0da;
}

.training-progress span {
    display: block;
    width: 0;
    height: 100%;
    background: #595650;
}

.training-paper-wrap {
    overflow-x: auto;
    padding: 2rem 1rem;
}

.training-paper {
    width: 960px;
    min-height: 1080px;
    margin: 0 auto;
    padding: 55px 58px 40px;
    box-shadow: 0 8px 32px rgba(45, 42, 36, 0.16);
    background: var(--training-paper);
}

.training-paper-header {
    margin-bottom: 3rem;
}

.training-paper-header h2 {
    margin-bottom: 1.3rem;
    font-family: Georgia, serif;
    font-size: 1.55rem;
    text-align: center;
}

.training-paper-header div {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}

.training-number-grid {
    width: 100%;
    table-layout: fixed;
    border-collapse: collapse;
    font-family: Arial, "Liberation Sans", sans-serif;
    font-size: 1rem;
    font-variant-numeric: tabular-nums;
}

.training-number-grid td {
    height: 1.9rem;
    padding: 0;
    border: 0 solid transparent;
    cursor: pointer;
    text-align: center;
    user-select: none;
}

.training-number-grid .training-border-top {
    border-top: 1px solid var(--training-group-rule);
}

.training-number-grid .training-border-right {
    border-right: 1px solid var(--training-group-rule);
}

.training-number-grid .training-border-bottom {
    border-bottom: 1px solid var(--training-group-rule);
}

.training-number-grid .training-border-left {
    border-left: 1px solid var(--training-group-rule);
}

.training-number-grid th {
    width: 3.4rem;
    padding-left: 0.65rem;
    color: #77736c;
    font-size: 0.72rem;
    font-weight: 400;
    white-space: nowrap;
}

.training-number-grid td.training-active {
    background: var(--training-highlight);
}

.training-number-grid td.training-active-block:not(.training-active) {
    background: var(--training-highlight-context);
}

.training-page footer {
    margin-top: 2.6rem;
    color: #77736c;
    text-align: center;
}

.training-page-controls {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
}

.training-key-help {
    margin-top: 0.75rem;
    color: #68645d;
    text-align: center;
}

@media (max-width: 700px) {
    .training-settings {
        grid-template-columns: 1fr;
    }

    .training-setting-pattern,
    .training-setting-checks {
        grid-column: 1 / -1;
    }

    .training-toolbar {
        grid-template-columns: 1fr 1fr;
    }

    .training-toolbar-page {
        text-align: right;
    }

    .training-toolbar > :last-child {
        grid-column: 1 / -1;
        justify-self: stretch;
    }
}