* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Montserrat', sans-serif;
  background-color: #202124;
  color: #e8eaed;
  min-height: 100vh;
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

a:link {
    color: #7d7d7d;
}

a:visited {
    color: #7d7d7d;
}

p, .day-item, .about_rokuyo {
    margin: 1rem 0;
    line-height: 1.5rem;
}

h1 {
    margin-bottom: 0.5rem;
}

.green {
    color: #2cab0d;
}

header, main, footer {
    margin: 1.5rem 0.5rem;
}

header {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 2rem;
    text-decoration: none;
}

nav a[aria-current="page"] {
    color: #e8eaed;
    text-decoration: none;
}

.num-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    line-height: 1.4;
}

.num-table th,
.num-table td {
    text-align: left;
    padding: 0.4rem 0.6rem 0.4rem 0;
    border-bottom: 1px solid #3c4043;
    vertical-align: top;
}

.num-table th {
    color: #7d7d7d;
    font-weight: normal;
}

.heading {
    text-align: center;
    margin: 1.5rem 0;
}


.current-day {
  border: solid 1px #7d7d7d;
  border-radius: 0.5rem;
  padding: 1rem;
  margin-bottom: 1rem;
}

.current-day.taian {
  border-color: #2cab0d;
}

.current-day.butsumetsu {
  border-color: #c85a5a;
}

.current-date {
  text-align: center;
  font-size: clamp(5rem, 28vw, 12rem);
  line-height: 1;
}

.current-month {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.current-rokuyo-name {
    text-align: center;
    font-size: 2.5rem;
    line-height: 1.2;
}

.current-rokuyo-name.taian {
    color: #2cab0d;
}

.current-rokuyo-name.butsumetsu {
    color: #c85a5a;
}

.current-rokuyo-day {
    text-align: center;
    margin-top: 0.5rem;
}

.current-kyuureki {
    text-align: center;
    color: #7d7d7d;
    margin-top: 0.5rem;
    font-size: 0.95rem;
}

.day-item.is-today {
    border-left: 3px solid #e8eaed;
    padding-left: 0.75rem;
}

.next-taian {
    text-align: center;
    margin: 0 0 1.5rem;
}

.next-taian-link {
    color: #2cab0d;
    text-decoration: none;
    font-weight: bold;
}

a.next-taian-link:link,
a.next-taian-link:visited {
    color: #2cab0d;
}

.month-cal {
    margin: 0 0 2.5rem;
}

.month-cal-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.month-cal-title {
    font-size: 1.15rem;
    text-transform: lowercase;
}

.month-nav-btn {
    font-family: inherit;
    font-size: 1.75rem;
    line-height: 1;
    width: 2.5rem;
    height: 2.5rem;
    color: #e8eaed;
    background: none;
    border: 1px solid #7d7d7d;
    border-radius: 0.4rem;
    cursor: pointer;
}

.month-nav-btn:disabled {
    opacity: 0.3;
    cursor: default;
}

.month-cal-weekdays,
.month-cal-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.25rem;
}

.month-cal-weekdays {
    margin-bottom: 0.35rem;
    color: #7d7d7d;
    font-size: 0.8rem;
    text-align: center;
}

.month-cal-day {
    font-family: inherit;
    font-size: 1rem;
    color: #e8eaed;
    background: none;
    border: 1px solid transparent;
    border-radius: 0.4rem;
    padding: 0.55rem 0;
    cursor: pointer;
}

.month-cal-day:disabled {
    opacity: 0.25;
    cursor: default;
}

.month-cal-day.taian {
    color: #2cab0d;
}

.month-cal-day.butsumetsu {
    color: #c85a5a;
}

.month-cal-day.is-today {
    border-color: #7d7d7d;
}

.month-cal-day.is-selected {
    border-color: #e8eaed;
}

.day-name {
    display: inline;
    font-size: 1rem;
    font-weight: bold;
    line-height: 1.5rem;
    margin: 0;
}

.translation {
    color: #7d7d7d;
}

.about_rokuyo h2,
.faq h2 {
    margin: 1.5rem 0 0.5rem;
    font-size: 1.15rem;
}

.faq details {
    margin: 0.75rem 0;
}

.faq summary {
    cursor: pointer;
    font-weight: bold;
}

.faq details p {
    margin: 0.5rem 0 0;
}