/* School Attendance Calculator — page-scoped styles (at- prefix, no global collisions). */
.at-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.1rem 1.25rem;
}
@media (max-width: 640px) {
    .at-grid { grid-template-columns: 1fr; }
}
.at-field { margin: 0; }

.at-input {
    box-sizing: border-box;
    width: 100%;
    padding: 0.6rem 0.7rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--surface-color);
    color: var(--text-primary);
    font-size: 1rem;
}
.at-input:focus { outline: none; border-color: var(--accent-color); }

.at-inline {
    display: flex;
    align-items: stretch;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--surface-color);
    overflow: hidden;
}
.at-inline:focus-within { border-color: var(--accent-color); }
.at-inline .at-input {
    border: none;
    border-radius: 0;
    background: transparent;
    flex: 1 1 auto;
    min-width: 0;
}
.at-inline .at-input:focus { outline: none; }
.at-suffix {
    display: flex;
    align-items: center;
    padding: 0 0.7rem;
    background: var(--bg-color);
    color: var(--text-secondary);
    font-size: 0.95rem;
    white-space: nowrap;
}

.at-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.25rem;
}

.at-status {
    margin: 1rem 0 0;
    padding: 0.7rem 0.9rem;
    border-radius: 8px;
    font-size: 0.92rem;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}
.at-status-error { border-color: #fca5a5; color: #991b1b; background: #fef2f2; }

.at-results { margin-top: 1.25rem; }
.at-headline {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    align-items: center;
    text-align: center;
    padding: 1.3rem 1rem;
    border: 1px solid var(--accent-color);
    border-radius: 12px;
    background: rgba(99, 102, 241, 0.06);
    margin-bottom: 0.9rem;
}
.at-head-lbl {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
}
.at-head-val {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--accent-color);
    line-height: 1.1;
}

.at-action {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    padding: 0.9rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    margin-bottom: 0.9rem;
}
.at-action-icon { font-size: 1.15rem; line-height: 1.4; flex: 0 0 auto; }
.at-action-text { color: var(--text-primary); font-size: 0.98rem; line-height: 1.45; }
.at-action.at-ok { border-color: #86efac; background: #f0fdf4; }
.at-action.at-warn { border-color: #fcd34d; background: #fffbeb; }

.at-res-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
}
@media (max-width: 560px) {
    .at-res-grid { grid-template-columns: 1fr; }
}
.at-res {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 1rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-color);
    text-align: center;
}
.at-res-val {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    word-break: break-word;
}
.at-res-lbl {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
}

.at-note {
    margin: 0.9rem 0 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
}