/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: #1a1a1a;
  background: #f5f5f5;
  line-height: 1.5;
}

/* ===== Layout ===== */
header {
  text-align: center;
  padding: 1.5rem 1rem 0.5rem;
}

header h1 {
  font-size: 1.5rem;
  font-weight: 700;
}

header p {
  color: #555;
  font-size: 0.9rem;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem 2rem;
}

footer {
  text-align: center;
  padding: 2rem 1rem 1.5rem;
  font-size: 0.85rem;
  color: #555;
  border-top: 1px solid #ddd;
  margin-top: 2rem;
}

footer a {
  color: #457B9D;
}

.partners h2 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: #1a1a1a;
}

.partners > p {
  margin-bottom: 0.75rem;
  color: #666;
  font-size: 0.85rem;
}

.partner-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.5rem;
  margin-bottom: 1rem;
}

.partner-links a {
  text-decoration: none;
  font-weight: 500;
}

.partner-links a:hover {
  text-decoration: underline;
}

.ridge-link {
  font-size: 0.8rem;
  color: #777;
}

/* ===== Month Navigation ===== */
#month-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 1rem 0;
}

#month-label {
  font-size: 1.2rem;
  font-weight: 600;
  min-width: 180px;
  text-align: center;
}

#month-nav button {
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  font-size: 0.9rem;
  min-width: 44px;
  min-height: 44px;
}

#month-nav button:hover {
  background: #eee;
}

/* ===== Provider Filter ===== */
.provider-filter-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  padding: 0.5rem 0 1rem;
}

.provider-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border: 2px dashed #bbb;
  border-radius: 20px;
  background: #fff;
  cursor: pointer;
  font-size: 0.85rem;
  opacity: 0.55;
  transition: opacity 0.15s, border-style 0.15s;
  min-height: 44px;
}

.provider-filter-btn.active {
  opacity: 1;
  border-style: solid;
  border-color: #888;
}

.provider-filter-btn:hover {
  opacity: 0.85;
}

.provider-color-swatch {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

/* ===== Calendar Grid (7 columns) ===== */
.calendar-grid {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 6px;
  overflow: hidden;
}

.calendar-header-row {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  background: #264653;
  color: #fff;
}

.calendar-day-header {
  padding: 0.5rem;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

.calendar-body {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
}

.calendar-day {
  min-height: 90px;
  border: 1px solid #eee;
  padding: 0.3rem;
  position: relative;
  background: #fff;
}

.calendar-day.other-month {
  background: #fafafa;
  color: #bbb;
}

.calendar-day.today {
  background: #eef6ff;
}

.calendar-day.past {
  background: #fafafa;
}

.day-number {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
  color: inherit;
}

/* ===== Event Cards ===== */
.event-card {
  display: block;
  min-width: 44px;
  min-height: 44px;
  padding: 0.3rem 0.3rem 0.3rem 0.5rem;
  margin-bottom: 0.25rem;
  border-left: 4px solid #ccc;
  border-radius: 3px;
  background: #f9f9f9;
  text-decoration: none;
  color: #1a1a1a;
  font-size: 0.75rem;
  transition: opacity 0.15s, background 0.15s;
}

.event-card:hover {
  background: #f0f0f0;
}

/* Past-event de-emphasis */
.event-card.past-event {
  opacity: 0.45;
}

.event-provider {
  display: block;
  font-weight: 600;
  font-size: 0.7rem;
  line-height: 1.3;
}

.event-date {
  display: block;
  font-size: 0.65rem;
  color: #666;
}

.event-title {
  display: block;
  font-size: 0.65rem;
  color: #555;
  margin-top: 0.1rem;
}

/* ===== Provider Color Classes ===== */
.provider-optimum-performance { border-left-color: #E63946; }
.provider-2fast { border-left-color: #457B9D; }
.provider-tracktime { border-left-color: #2A9D8F; }
.provider-motovixens { border-left-color: #E9C46A; }
.provider-team-boc { border-left-color: #264653; }

/* ===== No Events Message ===== */
.no-events-message {
  text-align: center;
  padding: 2rem 1rem;
  color: #888;
  font-size: 1rem;
}

/* ===== Noscript ===== */
noscript p {
  text-align: center;
  padding: 2rem;
  font-size: 1.1rem;
  color: #c00;
}

/* ===== Mobile: viewports below 768px ===== */
@media (max-width: 767px) {
  header h1 {
    font-size: 1.2rem;
  }

  main {
    padding: 0 0.5rem 1.5rem;
  }

  /* Stack calendar into a single-column list layout */
  .calendar-header-row {
    display: none;
  }

  .calendar-body {
    grid-template-columns: 1fr;
  }

  .calendar-day {
    min-height: auto;
    padding: 0.5rem;
    border-bottom: 1px solid #eee;
    border-left: none;
    border-right: none;
    border-top: none;
  }

  /* Hide days with no events and days from other months on mobile */
  .calendar-day.other-month {
    display: none;
  }

  .day-number {
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
  }

  /* Event cards: full width, comfortable tap targets */
  .event-card {
    font-size: 0.85rem;
    padding: 0.5rem 0.5rem 0.5rem 0.6rem;
    min-height: 48px;
  }

  .event-provider {
    font-size: 0.8rem;
  }

  .event-date,
  .event-title {
    font-size: 0.75rem;
  }

  /* Filter buttons: allow wrapping, slightly larger for touch */
  .provider-filter-list {
    gap: 0.4rem;
    padding: 0.5rem 0.25rem 0.75rem;
  }

  .provider-filter-btn {
    font-size: 0.8rem;
    padding: 0.4rem 0.65rem;
    min-height: 44px;
  }

  /* Month nav: tighter spacing */
  #month-label {
    font-size: 1rem;
    min-width: 140px;
  }

  #month-nav button {
    padding: 0.3rem 0.6rem;
    font-size: 0.85rem;
  }
}

/* ===== Narrow viewports: 320px–374px ===== */
@media (max-width: 374px) {
  header h1 {
    font-size: 1rem;
  }

  header p {
    font-size: 0.8rem;
  }

  #month-nav {
    gap: 0.5rem;
    padding: 0.75rem 0;
  }

  #month-label {
    font-size: 0.9rem;
    min-width: 110px;
  }

  #month-nav button {
    padding: 0.3rem 0.5rem;
    font-size: 0.8rem;
    min-width: 44px;
    min-height: 44px;
  }

  .provider-filter-list {
    gap: 0.3rem;
    padding: 0.4rem 0 0.6rem;
  }

  .provider-filter-btn {
    font-size: 0.75rem;
    padding: 0.35rem 0.5rem;
  }

  main {
    padding: 0 0.25rem 1rem;
    overflow-x: hidden;
  }
}

/* ===== Wide viewports: 1200px+ ===== */
@media (min-width: 1200px) {
  .calendar-day {
    min-height: 110px;
    padding: 0.4rem;
  }

  .calendar-day-header {
    padding: 0.6rem;
    font-size: 0.85rem;
  }

  .event-card {
    padding: 0.4rem 0.4rem 0.4rem 0.6rem;
    font-size: 0.8rem;
  }

  .event-provider {
    font-size: 0.75rem;
  }

  .event-date,
  .event-title {
    font-size: 0.7rem;
  }

  header h1 {
    font-size: 1.75rem;
  }

  #month-label {
    font-size: 1.35rem;
  }
}