.page {
    max-width: 1100px;
    margin: 2rem auto;
    padding: 0 1rem 3rem;
}

h1 {
    font-size: 2rem;
    margin-bottom: 0.3rem;
}

h2 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.subtitle {
    opacity: 0.8;
    margin-bottom: 1.5rem;
}

.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.toolbar-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    align-items: stretch;
}

.toolbar-buttons .toolbar-btn,
.toolbar-buttons .theme-toggle {
    width: 100%;
}

label {
    font-weight: 500;
}

input[type="text"],
input[type="number"],
select {
    width: 100%;
    max-width: 280px;
    padding: 0.4rem 0.5rem;
    margin-top: 0.3rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
    color: var(--text-color);
}

#course-select {
    font-size: 1.25rem;
    padding: 0.5rem;
    border-radius: 4px;
    background-color: var(--bg-card);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    max-width: none;
    width: auto;
    min-width: 300px;
}

#course-select option {
    background-color: var(--bg-card);
    color: var(--text-color);
    padding: 0.5rem;
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 1px var(--accent-color);
}

.two-columns {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr);
    gap: 1rem;
}

.hidden {
    display: none;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

th,
td {
    padding: 0.35rem 0.4rem;
    border-bottom: 1px solid var(--border-color);
}

th {
    text-align: left;
    font-weight: 600;
}

#error {
    color: #b91c1c;
    margin-top: 0.5rem;
    font-size: 0.9rem;
    white-space: pre-line;
    line-height: 1.5;
    padding: 0.75rem;
    background-color: #fee;
    border-left: 4px solid #b91c1c;
    border-radius: 4px;
}

#random-info {
    margin-top: 0.4rem;
    font-size: 0.9rem;
}

/* Dark mode for course select */
body.dark #course-select {
    background-color: #020617;
    color: #93c5fd;
    border-color: #1f2937;
}

body.dark #course-select option {
    background-color: #020617;
    color: #93c5fd;
}

body.dark #error {
    background-color: #3f1c1c;
    border-left-color: #ef4444;
    color: #fca5a5;
}