:root {
    color-scheme: light;
    font-family: "Segoe UI", Tahoma, Arial, sans-serif;
    color: #1f2a44;
    background: var(--pale-blue);
    font-synthesis: none;
    text-rendering: optimizeLegibility;
    --navy: #2851a3;
    --blue: #1d3c7a;
    --gold: #00b894;
    --gold-light: #00b894;
    --muted: #6b7280;
    --border: #e5e9f0;
    --pale-blue: #f4f7fb;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    padding: clamp(8px, 1.4vw, 18px);
    background: var(--pale-blue);
}

button { font: inherit; }

.calendar-page {
    display: grid;
    width: 100%;
    margin: 0 auto;
    gap: clamp(12px, 1.6vw, 22px);
    align-items: stretch;
}

.calendar-card,
.day-card {
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .04);
}

.calendar-card {
    min-width: 0;
    padding: 18px;
}

.calendar-toolbar {
    display: grid;
    grid-template-columns: minmax(92px, 1fr) auto minmax(92px, 1fr);
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.calendar-toolbar h2 {
    margin: 0;
    color: var(--navy);
    font-size: clamp(17px, 2vw, 21px);
    font-weight: 700;
    text-align: center;
}

.calendar-toolbar button {
    display: inline-flex;
    min-height: 42px;
    padding: 0 12px;
    align-items: center;
    gap: 7px;
    border: 1px solid var(--navy);
    border-radius: 10px;
    background: #fff;
    color: var(--navy);
    cursor: pointer;
    font-size: 13px;
    line-height: 1;
    transition: background-color .15s ease, color .15s ease;
}

.calendar-toolbar button > span[aria-hidden="true"] { font-size: 22px; }

.calendar-toolbar button:first-child { justify-self: start; }
.calendar-toolbar button:last-child { justify-self: end; }

.calendar-toolbar button:hover,
.calendar-toolbar button:focus-visible {
    background: var(--navy);
    color: #fff;
    outline: none;
}

.calendar-options {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 12px;
}

.feast-toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--blue);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
}

.feast-toggle-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.feast-toggle-label span[lang="ar"] { font-weight: 700; }

.feast-toggle input {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    opacity: 0;
}

.feast-toggle-track {
    position: relative;
    width: 48px;
    height: 27px;
    flex: 0 0 auto;
    border-radius: 999px;
    background: #cbd5e1;
    transition: background-color .2s ease;
}

.feast-toggle-thumb {
    position: absolute;
    top: 3px;
    inset-inline-start: 3px;
    width: 21px;
    height: 21px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 3px rgb(15 23 42 / 25%);
    transition: transform .2s ease;
}

.feast-toggle input:checked + .feast-toggle-track { background: var(--gold); }
.feast-toggle input:focus-visible + .feast-toggle-track { outline: 3px solid rgb(40 81 163 / 35%); outline-offset: 2px; }
:root[dir="ltr"] .feast-toggle input:checked + .feast-toggle-track .feast-toggle-thumb { transform: translateX(21px); }
:root[dir="rtl"] .feast-toggle input:checked + .feast-toggle-track .feast-toggle-thumb { transform: translateX(-21px); }

.calendar-weekdays,
.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 6px;
}

.calendar-weekdays { margin-bottom: 6px; }

.calendar-weekday {
    padding: 6px 0;
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
    text-align: center;
}

.calendar-day {
    display: flex;
    min-width: 0;
    min-height: 64px;
    padding: 8px 4px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fafafa;
    color: #9ca3af;
}

button.calendar-day {
    width: 100%;
    font: inherit;
    cursor: pointer;
}

.calendar-day-blank {
    border-color: transparent;
    background: transparent;
}

.calendar-day-available {
    border-color: #c7d2fe;
    background: #eef2ff;
    color: #1e40af;
    font-weight: 700;
    transition: transform .15s, background-color .15s;
}

.calendar-day-available:hover,
.calendar-day-available:focus-visible {
    background: #c7d2fe;
    outline: 2px solid var(--navy);
    outline-offset: 1px;
    transform: translateY(-1px);
}

.calendar-day-selected {
    border-color: var(--navy);
    background: var(--navy);
    color: #fff;
}

.calendar-day-today:not(.calendar-day-selected) {
    border-color: var(--gold);
    color: var(--blue);
}

.calendar-day-feast {
    display: -webkit-box;
    max-width: 100%;
    margin-top: 4px;
    overflow: hidden;
    color: inherit;
    font-size: clamp(9px, .8vw, 11px);
    font-weight: 600;
    line-height: 1.2;
    overflow-wrap: anywhere;
    text-align: center;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.day-card {
    min-width: 0;
    margin: 0;
    padding: 18px;
}

.day-card-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
}

.day-card-heading h2 {
    margin: 0;
    color: var(--navy);
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(18px, 4vw, 23px);
}

.loading-indicator,
.calendar-status {
    color: var(--muted);
    font-size: 13px;
}

.calendar-status:empty { display: none; }
.calendar-status { margin: 12px 0 0; }

.feast-title {
    margin: 18px 0 0;
    padding-inline-start: 14px;
    border-inline-start: 3px solid var(--gold);
    color: var(--navy);
    font-size: 18px;
    font-weight: 700;
    line-height: 1.8;
    white-space: pre-line;
}

.reading-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 18px;
}

.reading-tabs[hidden] { display: none; }

.reading-tabs button {
    flex: 1 1 0;
    min-height: 44px;
    padding: 9px 15px;
    border: 1px solid var(--navy);
    border-radius: 0;
    background: var(--navy);
    color: #fff;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
}

.reading-tabs button[aria-selected="true"] {
    border-color: var(--gold);
    background: var(--navy);
    box-shadow: inset 0 -4px 0 var(--gold);
    color: #fff;
}

.reading-content {
    margin-top: 16px;
    color: #25374b;
    font-size: 15px;
    line-height: 1.9;
    white-space: pre-line;
    overflow-wrap: anywhere;
}

.reading-content:empty { display: none; }
.reading-content audio {
    display: block;
    width: 100%;
    margin: 10px 0;
}

@media (min-width: 901px) {
    .calendar-page {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 24px;
    }

    .day-card { max-height: 560px; overflow-y: auto; }
}

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

@media (max-width: 480px) {
    body { padding: 6px; }
    .calendar-card { padding: 6px; }
    .day-card { padding: 16px; }
    .calendar-toolbar { gap: 6px; }
    .calendar-toolbar button { min-width: 42px; padding: 0 8px; }
    .calendar-day { min-height: 52px; padding: 6px 2px; }
    .reading-tabs { gap: 6px; }
    .reading-tabs button { flex: 1 1 auto; padding-inline: 10px; }
}