:root {
    --serum-ink: #24332f;
    --serum-muted: #687873;
    --serum-green: #1f6b5b;
    --serum-dark: #174e44;
    --serum-gold: #b58b45;
    --serum-paper: #fbfaf6;
    --serum-line: #dfe5df;
    --serum-shadow: 0 12px 30px rgba(30, 58, 49, .09);
}

.serumPage {
    max-width: 1240px;
    margin: 70px auto 0;
    padding: 30px 24px 60px;
    color: var(--serum-ink);
}

.serumHero {
    margin-bottom: 22px;
    padding: 28px clamp(18px, 4vw, 48px);
    background: linear-gradient(115deg, #e7f0eb, var(--serum-paper) 70%);
    border: 1px solid var(--serum-line);
    border-top: 4px solid var(--serum-gold);
    box-shadow: var(--serum-shadow);
}

.serumHero h1 {
    margin: 0 0 8px;
    color: var(--serum-ink);
    font-size: clamp(1.5rem, 3vw, 2.35rem);
    letter-spacing: .06em;
}

.serumHero p {
    margin: 0;
    color: var(--serum-muted);
    line-height: 1.55;
}

.serumLayout {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
    gap: 20px;
    align-items: start;
}

.serumPanel {
    padding: 22px;
    background: var(--serum-paper);
    border: 1px solid var(--serum-line);
    border-radius: 6px;
    box-shadow: var(--serum-shadow);
}

.serumPanel h2 {
    margin: 0 0 18px;
    color: var(--serum-dark);
    font-size: 1.05rem;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.serumForm {
    display: grid;
    gap: 12px;
}

.serumFormGrid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.serumField {
    display: flex;
    flex-direction: column;
    color: var(--serum-muted);
    font-size: .86rem;
    font-weight: 600;
}

.serumField input,
.serumField select,
.serumField textarea {
    box-sizing: border-box;
    width: 100%;
    min-height: 44px;
    margin-top: 6px;
    padding: 0 12px;
    border: 1px solid #b9cbc4;
    border-radius: 4px;
    background: #fff;
    color: var(--serum-ink);
    font: inherit;
}

.serumField textarea {
    min-height: 96px;
    padding: 12px;
    resize: vertical;
}

.serumField input:focus,
.serumField select:focus,
.serumField textarea:focus {
    border-color: var(--serum-green);
    box-shadow: 0 0 0 3px rgba(31, 107, 91, .12);
    outline: none;
}

.serumSpan2 {
    grid-column: 1 / -1;
}

.serumDays {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 8px;
    margin-top: 6px;
}

.serumDay {
    position: relative;
}

.serumDay input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.serumDay span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    border: 1px solid #c8d4cf;
    border-radius: 4px;
    background: #fff;
    color: var(--serum-muted);
    font-size: .78rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 160ms ease;
}

.serumDay input:checked+span {
    border-color: var(--serum-green);
    background: #eef5f0;
    color: var(--serum-dark);
}

.serumActions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 4px;
}

.serumActions button,
.serumFilterButton {
    min-height: 42px;
    padding: 0 16px;
    border: 1px solid var(--serum-green);
    border-radius: 4px;
    background: var(--serum-green);
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-weight: 600;
    transition: transform 160ms ease, box-shadow 160ms ease;
}

.serumActions button:hover,
.serumFilterButton:hover {
    box-shadow: 0 8px 16px rgba(31, 107, 91, .18);
    transform: translateY(-2px);
}

.serumActions .secondaryButton,
.serumFilterButton {
    background: transparent;
    color: var(--serum-dark);
    border-color: var(--serum-line);
}

.serumStatus {
    min-height: 20px;
    color: #a45e4c;
    font-size: .86rem;
}

.serumToolbar {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    align-items: center;
    margin-bottom: 14px;
}

.serumFilterButtons {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.serumFilterButton {
    min-height: 34px;
    padding: 0 11px;
    font-size: .8rem;
}

.serumFilterButton.active {
    background: var(--serum-green);
    border-color: var(--serum-green);
    color: #fff;
}

.serumList,
.serumChecklist {
    display: grid;
    gap: 10px;
}

.serumItem,
.checklistItem {
    padding: 14px;
    border: 1px solid var(--serum-line);
    border-radius: 6px;
    background: #fff;
}

.serumItemHeader,
.checklistHeader {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    align-items: flex-start;
}

.serumItemName,
.checklistName {
    color: var(--serum-dark);
    font-size: 1rem;
    font-weight: 700;
}

.serumItemMeta,
.checklistMeta {
    margin-top: 4px;
    color: var(--serum-muted);
    font-size: .84rem;
    line-height: 1.45;
}

.serumPill {
    flex: 0 0 auto;
    padding: 6px 10px;
    border-radius: 999px;
    background: #eef5f0;
    color: var(--serum-green);
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.serumItemActions {
    display: flex;
    gap: 6px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.serumItemActions button {
    min-height: 34px;
    padding: 0 12px;
    border: 1px solid #c8d4cf;
    border-radius: 4px;
    background: #f8fbf9;
    color: var(--serum-dark);
    cursor: pointer;
    font: inherit;
    font-weight: 600;
}

.serumItemActions button:hover {
    background: var(--serum-green);
    color: #fff;
}

.serumEmpty {
    padding: 18px;
    color: var(--serum-muted);
    font-size: .9rem;
    line-height: 1.55;
}

.checklistItem {
    display: grid;
    grid-template-columns: 28px 1fr;
    gap: 12px;
    align-items: start;
}

.checklistItem input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--serum-green);
}

.checklistItem.is-applied {
    border-color: #bcd6c6;
    background: #f4f9f5;
}

.checklistItem small {
    display: block;
    margin-top: 6px;
    color: var(--serum-muted);
    font-size: .78rem;
}

.serumStatsGrid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.serumStatCard {
    padding: 14px;
    border: 1px solid var(--serum-line);
    border-radius: 6px;
    background: #fff;
}

.serumStatCard span {
    display: block;
    color: var(--serum-muted);
    font-size: .74rem;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.serumStatCard strong {
    display: block;
    margin-top: 6px;
    color: var(--serum-dark);
    font-size: 1.2rem;
}

.chartWrap {
    height: 300px;
    padding: 10px;
    border: 1px solid var(--serum-line);
    background: #fff;
}

#serumChart {
    width: 100%;
    height: 100%;
}

.serumNote {
    margin-top: 16px;
    padding: 13px 14px;
    border-left: 3px solid var(--serum-gold);
    background: #f4f0e5;
    color: #725b2e;
    font-size: .86rem;
    line-height: 1.55;
}

@media (max-width: 900px) {
    .serumLayout {
        grid-template-columns: 1fr;
    }

    .serumStatsGrid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 600px) {
    .serumPage {
        padding: 22px 14px 42px;
    }

    .serumFormGrid,
    .serumStatsGrid {
        grid-template-columns: 1fr;
    }

    .serumDays {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .checklistItem {
        grid-template-columns: 24px 1fr;
    }
}