/* Explain: Styling for reusable UI components like buttons and cards. */
.btn-solid {
    display: inline-flex;
    min-height: 46px;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: 10px;
    background: var(--primary-color);
    color: #ffffff;
    font-weight: 600;
    padding: 0.75rem 1.35rem;
    white-space: nowrap;
}

.btn-solid:hover {
    background: var(--primary-hover);
}

.btn-outline {
    display: inline-flex;
    min-height: 46px;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: #ffffff;
    color: var(--text-color);
    font-weight: 600;
    padding: 0.75rem 1.35rem;
    white-space: nowrap;
}

.btn-outline:hover {
    border-color: var(--text-color);
}

.card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-large);
    background: var(--surface-color);
}

.card-hover:hover {
    border-color: #D1D5DB;
    box-shadow: var(--shadow-card);
    transform: translateY(-2px);
}

.pill {
    display: inline-flex;
    min-height: 38px;
    align-items: center;
    gap: 0.4rem;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: #ffffff;
    padding: 0.45rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-color);
}

.pill:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.chip {
    display: inline-flex;
    min-height: 40px;
    align-items: center;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: #ffffff;
    padding: 0.5rem 1rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
}

.chip:hover {
    color: var(--text-color);
    border-color: #D1D5DB;
}

.category-filter-btn.is-active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #ffffff;
}

.field {
    min-height: 48px;
    width: 100%;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: #ffffff;
    padding: 0.75rem 1rem;
    color: var(--text-color);
}

.field::placeholder {
    color: #A0AEC0;
}

.field:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    outline: none;
}

.code {
    border-radius: var(--radius-medium);
    background: #0B1220;
    color: #E5E7EB;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.95rem;
    line-height: 1.7;
    overflow-x: auto;
    padding: 1rem 1.1rem;
}

.meta-label {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.prose p {
    margin-top: 1.15rem;
    color: #243040;
    font-size: 1.075rem;
}

.prose h2 {
    margin-top: 2.4rem;
    color: var(--primary-color);
    font-size: clamp(1.7rem, 3.5vw, 2.4rem);
    line-height: 1.15;
}

.prose h3 {
    margin-top: 1.9rem;
    color: var(--primary-color);
    font-size: clamp(1.25rem, 2.5vw, 1.6rem);
}

.prose ul,
.prose ol {
    margin-top: 1.15rem;
    padding-left: 1.4rem;
    color: #243040;
    font-size: 1.075rem;
}

.prose ul {
    list-style: disc;
}

.prose ol {
    list-style: decimal;
}

.prose li {
    margin-top: 0.65rem;
    line-height: 1.7;
}

.prose strong {
    color: var(--primary-color);
}

.tip-box {
    border-radius: var(--radius-medium);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-color);
    background: var(--surface-muted);
    padding: 1.25rem 1.35rem;
}