body {
    --page-bg: #eef4ff;
    --surface: #ffffff;
    --surface-soft: #f8fbff;
    --surface-muted: #f4f6fa;
    --line: #d7e1f0;
    --line-strong: #bdd0ea;
    --primary: #1d6ff2;
    --primary-deep: #1358c8;
    --danger: #e04848;
    --warning: #f4b844;
    --note: #1c6be1;
    --text: #1d2f4f;
    --muted: #7183a3;
    background:
        radial-gradient(circle at top, rgba(29, 111, 242, 0.08), transparent 24%),
        linear-gradient(180deg, #f6f9ff 0%, #edf3fc 100%);
    color: var(--text);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
}

.alert {
    border-radius: 1rem;
}

.calendar-hero__title {
    color: var(--primary);
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.03em;
}

.calendar-hero__subtitle {
    color: var(--muted);
    font-size: 1rem;
}

.calendar-toolbar {
    background: rgba(255, 243, 212, 0.95);
    border: 1px solid #f4dc9b;
    border-radius: 0.9rem;
    padding: 1rem 1.2rem;
    margin-bottom: 1rem;
    box-shadow: 0 10px 24px rgba(28, 52, 84, 0.05);
}

.calendar-toolbar__controls {
    display: flex;
    flex-wrap: wrap;
    align-items: end;
    gap: 1rem;
}

.calendar-toolbar__group {
    min-width: 180px;
    flex: 1 1 180px;
}

.calendar-toolbar__group .form-label {
    color: #845c00;
    font-size: 0.9rem;
    font-weight: 700;
}

.calendar-toolbar__group .form-select,
.calendar-note-form .form-control {
    border-color: var(--line-strong);
}

.calendar-toolbar__meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: auto;
}

.calendar-toolbar__stat {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    min-width: 96px;
}

.calendar-toolbar__stat-number {
    color: var(--primary-deep);
    font-size: 1.35rem;
    font-weight: 800;
    line-height: 1;
}

.calendar-toolbar__stat-label {
    color: var(--muted);
    font-size: 0.78rem;
}

.calendar-legend {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.25rem;
    color: var(--text);
    font-size: 0.9rem;
    font-weight: 600;
}

.calendar-legend__item {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}

.calendar-legend__dot {
    width: 0.6rem;
    height: 0.6rem;
    border-radius: 999px;
    display: inline-block;
}

.calendar-legend__dot.is-holiday {
    background: var(--danger);
}

.calendar-legend__dot.is-note {
    background: var(--note);
}

.calendar-legend__dot.is-today {
    background: var(--warning);
}

.calendar-shell {
    background: var(--surface);
    border: 1px solid rgba(177, 197, 224, 0.8);
    border-radius: 1rem;
    box-shadow: 0 14px 30px rgba(30, 52, 86, 0.12);
    overflow: hidden;
}

.calendar-shell__header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 1rem;
    padding: 1rem 1rem 0;
}

.calendar-shell__month {
    text-align: center;
    font-size: clamp(1.7rem, 3vw, 2.3rem);
    font-weight: 800;
    color: #152e58;
}

.calendar-shell__month-year {
    color: var(--muted);
    font-size: 0.6em;
    font-weight: 700;
}

.month-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border: 1px solid var(--primary);
    border-radius: 0.45rem;
    color: var(--primary);
    background: #fff;
    padding: 0.35rem 0.75rem;
    font-size: 0.92rem;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
}

.month-nav-btn:hover {
    background: #edf4ff;
}

.calendar-grid-wrap {
    overflow-x: auto;
    padding: 0.75rem 0;
}

.calendar-grid {
    width: 100%;
    min-width: 980px;
    border-collapse: collapse;
    table-layout: fixed;
}

.calendar-grid th,
.calendar-grid td {
    border: 1px solid var(--line);
}

.calendar-grid th {
    background: linear-gradient(180deg, #fcfdff 0%, #f0f4f9 100%);
    color: #45618d;
    font-size: 0.94rem;
    font-weight: 700;
    padding: 0.95rem 0.4rem;
    text-align: center;
}

.calendar-grid th.is-sunday {
    color: var(--danger);
    background: linear-gradient(180deg, #fff1f1 0%, #ffe1e1 100%);
}

.calendar-grid th.is-saturday {
    color: var(--danger);
    background: linear-gradient(180deg, #fff1f1 0%, #ffe1e1 100%);
}

.calendar-day {
    background: var(--surface);
    height: 126px;
    vertical-align: top;
}

.calendar-day.is-other-month {
    background: #fafbfd;
    color: #b1bccf;
}

.calendar-day.is-holiday {
    background: linear-gradient(180deg, #fff1f1 0%, #ffdede 100%);
}

.calendar-day.is-today {
    box-shadow: inset 0 0 0 2px var(--primary);
}

.calendar-day__inner {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    height: 100%;
    padding: 0.8rem 0.65rem 0.55rem;
}

.calendar-day__top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.5rem;
}

.calendar-day__number {
    color: #16315d;
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1;
}

.calendar-day.is-other-month .calendar-day__number {
    color: #b1bccf;
}

.calendar-grid tbody tr td:first-child .calendar-day__number {
    color: var(--danger);
}

.calendar-grid tbody tr td:last-child .calendar-day__number {
    color: var(--danger);
}

.calendar-grid tbody tr td:first-child,
.calendar-grid tbody tr td:last-child {
    background: linear-gradient(180deg, #fff3f3 0%, #ffe7e7 100%);
}

.calendar-grid tbody tr td:first-child.is-other-month,
.calendar-grid tbody tr td:last-child.is-other-month {
    background: linear-gradient(180deg, #fff8f8 0%, #fff1f1 100%);
}

.calendar-day__meta {
    color: var(--muted);
    font-size: 0.7rem;
    font-weight: 600;
    text-align: right;
}

.calendar-chip {
    max-width: 100%;
    align-self: flex-start;
    border-radius: 999px;
    padding: 0.2rem 0.55rem;
    overflow: hidden;
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    line-height: 1.2;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.calendar-chip--note {
    background: var(--note);
}

.calendar-chip--holiday {
    background: var(--danger);
}

.calendar-day__actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.45rem;
    margin-top: auto;
}

.mini-check {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 700;
}

.mini-check input {
    margin: 0;
}

.calendar-note-link {
    border: 0;
    background: transparent;
    color: var(--primary);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0;
}

.calendar-note-form {
    display: flex;
    gap: 0.45rem;
}

.calendar-note-form .btn {
    white-space: nowrap;
}

.event-list-card {
    background: var(--surface);
    border: 1px solid rgba(177, 197, 224, 0.8);
    border-radius: 1rem;
    box-shadow: 0 12px 26px rgba(30, 52, 86, 0.08);
    overflow: hidden;
}

.event-list-card__header {
    padding: 1rem 1.15rem 0.8rem;
}

.event-list-card__header h2 {
    color: #15305b;
    font-size: 1.7rem;
    font-weight: 800;
}

.event-list-card__header h2::before {
    content: "☰";
    color: var(--primary);
    font-size: 1.1rem;
    margin-right: 0.45rem;
    vertical-align: middle;
}

.event-list {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    padding: 0 0.9rem 1rem;
}

.event-item {
    display: grid;
    grid-template-columns: 126px minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.9rem;
    border: 1px solid var(--line);
    border-radius: 0.75rem;
    background: linear-gradient(180deg, #fff 0%, var(--surface-soft) 100%);
    padding: 0.6rem 0.85rem;
}

.event-item__date {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    background: var(--note);
    color: #fff;
    border-radius: 999px;
    min-height: 1.9rem;
    padding: 0.25rem 0.75rem;
    font-size: 0.82rem;
    font-weight: 800;
}

.event-item__title {
    color: #19325e;
    font-size: 0.96rem;
    font-weight: 700;
}

.event-item__subtitle {
    color: var(--muted);
    font-size: 0.82rem;
    margin-top: 0.15rem;
}

.event-item__tag {
    border-radius: 999px;
    padding: 0.22rem 0.65rem;
    font-size: 0.75rem;
    font-weight: 800;
}

.event-item__tag.is-holiday {
    background: #ffe5e5;
    color: #b33636;
}

.event-item__tag.is-note {
    background: #e5f0ff;
    color: #115ad0;
}

.event-list-card__empty {
    color: var(--muted);
    padding: 0 1.15rem 1.15rem;
}

@media (max-width: 991.98px) {
    .calendar-shell__header {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .calendar-shell__nav,
    .calendar-shell__nav.text-end {
        text-align: center !important;
    }

    .calendar-toolbar__meta {
        width: 100%;
        justify-content: space-between;
        margin-left: 0;
    }
}

@media (max-width: 767.98px) {
    .container {
        padding-left: 0.85rem;
        padding-right: 0.85rem;
    }

    .calendar-hero__title {
        font-size: 1.8rem;
    }

    .calendar-toolbar {
        padding: 0.9rem;
    }

    .calendar-toolbar__controls {
        flex-direction: column;
        align-items: stretch;
    }

    .calendar-toolbar__group {
        min-width: 0;
    }

    .calendar-toolbar__meta {
        flex-direction: column;
        align-items: stretch;
    }

    .calendar-toolbar__stat {
        align-items: flex-start;
    }

    .event-item {
        grid-template-columns: 1fr;
        justify-items: start;
    }
}