:root {
  --sidebar-width: 280px;
  --font-body: "Inter", sans-serif;
  --font-display: "Inter", sans-serif;
  --font-mono: "Inter", sans-serif;
}

body,
button,
input,
select,
textarea {
  font-family: "Inter", sans-serif;
}

.main-inner {
  padding: 2.4rem clamp(2.8rem, 4.5vw, 5.6rem) 6.4rem;
}

.topbar-sub {
  color: var(--text-secondary);
}

.topbar.hero {
  background-image: none;
}

.theme-color-dark .topbar.hero {
  background-image: none;
}

.meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.meta-line .badge {
  background: var(--sp-color-bg-muted);
  border-color: var(--sp-color-border-control);
  color: var(--text-secondary);
}

.meta-line .badge.success {
  background: var(--color-success-background);
  color: var(--color-success-text);
  color: color-mix(in srgb, var(--color-success-text), white 32%);
  border-color: var(--color-success-border);
}

.mode-switch,
.mode-label {
  cursor: pointer;
}

.button-group {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.button-group .button {
  padding-inline: 1.4rem;
}

.button-group .button.active {
  background: var(--neutral-4);
  color: var(--neutral-text-high);
}

.group-control {
  width: min(420px, 100%);
  justify-self: center;
}

#group-select {
  padding: 0.5rem 1.2rem;
}

#today-btn {
  color: var(--text-secondary);
}

#today-btn:hover {
  color: var(--text-primary);
}

@media (max-width: 640px) {
  .group-control {
    width: 100%;
    justify-self: stretch;
  }
}

.controls-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

#status {
  margin-top: var(--space-2);
}

#status[hidden] {
  display: none;
}

.view-section {
  display: grid;
  gap: var(--space-4);
}

.week-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.lesson-list {
  display: grid;
  gap: var(--space-3);
}

.lesson {
  border: 1px solid var(--sp-color-border-control);
  border-radius: 10px;
  padding: var(--space-3);
  background: var(--surface-2);
  display: grid;
  gap: var(--space-2);
  box-shadow: var(--sp-shadow-subtle);
}

.lesson-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  font-size: 1.2rem;
  color: var(--text-secondary);
}

.lesson-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: 1.1rem;
  color: var(--accent);
  border: 1px solid var(--accent-border);
  background: var(--accent-soft);
  padding: 0.1rem 0.6rem;
  border-radius: 999px;
}

.lesson-time {
  font-family: inherit;
  font-weight: 600;
  color: var(--text-primary);
}

.lesson-time-sup {
  margin-left: 0.4rem;
  font-size: 0.9em;
  color: var(--text-muted);
}

.lesson-room {
  font-weight: 500;
  color: var(--text-secondary);
}

.lesson-room-sup {
  margin-left: 0.3rem;
  font-size: 0.85em;
  color: var(--text-muted);
}

.lesson-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-primary);
}

.lesson-teacher {
  font-size: 1.2rem;
  color: var(--text-muted);
}

@media (max-width: 960px) {
  .topbar {
    grid-template-columns: 1fr;
  }

  .topbar-actions {
    justify-content: flex-start;
  }

  .main-inner {
    padding: 2.2rem 2rem 5.6rem;
  }
}

@media (max-width: 720px) {
  .main-inner {
    padding: 1.8rem 1.6rem 4.8rem;
  }

  body {
    overflow: auto;
  }

  .app-shell {
    height: auto;
    overflow: visible;
  }

  .application {
    margin: 0;
    border-radius: 0;
    height: auto;
    min-height: 100vh;
  }

  .sidebar {
    display: none;
  }

  .main {
    height: auto;
  }
}