/* ==========================================
   ds-exam-tools.css
   Compact exam dashboard styles
========================================== */

/* ==========================================
   Page Layout
========================================== */
.ds-tools-page {
    margin: 0;
    min-height: 100vh;
    background-color: #0b1120;
    color: #f8fafc;
}

.ds-tools-shell {
    width: min(960px, calc(100% - 32px));
    margin: 0 auto;
    padding: 28px 0 36px;
}

.site-header + .ds-tools-shell {
    padding-top: 24px;
}

/* ==========================================
   Header
========================================== */
.ds-tools-header {
    margin-bottom: 24px;
}

.ds-tools-title {
    margin: 0 0 10px;
}

.ds-tools-title__en,
.ds-tools-title__zh,
.ds-tools-subtitle__en,
.ds-tools-subtitle__zh,
.ds-tools-section__title-en,
.ds-tools-section__title-zh,
.ds-tools-card__title-en,
.ds-tools-card__title-zh,
.ds-tools-card__description-en,
.ds-tools-card__description-zh,
.ds-tools-card__tag-en,
.ds-tools-card__tag-zh {
    display: block;
}

.ds-tools-title__en {
    font-size: clamp(1.7rem, 3vw, 2.25rem);
    font-weight: 700;
    line-height: 1.2;
    color: #ffffff;
}

.ds-tools-title__zh {
    margin-top: 4px;
    font-size: clamp(1.1rem, 2.2vw, 1.45rem);
    font-weight: 600;
    line-height: 1.35;
    color: #cbd5e1;
}

.ds-tools-subtitle {
    margin: 0;
    max-width: 720px;
}

.ds-tools-subtitle__en {
    font-size: 1rem;
    line-height: 1.6;
    color: #dbe4f0;
}

.ds-tools-subtitle__zh {
    margin-top: 4px;
    font-size: 0.95rem;
    line-height: 1.65;
    color: #94a3b8;
}

/* ==========================================
   Sections
========================================== */
.ds-tools-section {
    margin-bottom: 18px;
}

.ds-tools-section__header {
    margin-bottom: 10px;
}

.ds-tools-section__title {
    margin: 0;
}

.ds-tools-section__title-en {
    font-size: 1.12rem;
    font-weight: 700;
    line-height: 1.35;
    color: #f8fafc;
}

.ds-tools-section__title-zh {
    margin-top: 2px;
    font-size: 0.9rem;
    line-height: 1.5;
    color: #94a3b8;
}

/* ==========================================
   Grid
========================================== */
.ds-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 12px;
}

.ds-tools-grid--single {
    grid-template-columns: 1fr;
}

/* ==========================================
   Cards
========================================== */
.ds-tools-card {
    display: block;
    padding: 16px;
    border: 1px solid rgba(148, 163, 184, 0.16);
    border-radius: 14px;
    background-color: #111827;
    box-shadow: 0 8px 24px rgba(2, 6, 23, 0.22);
    transition: border-color 0.18s ease, transform 0.18s ease;
}

.ds-tools-card:hover,
.ds-tools-card:focus-visible {
    transform: translateY(-2px);
    border-color: rgba(56, 189, 248, 0.4);
}

.ds-tools-card:focus-visible {
    outline: 2px solid rgba(125, 211, 252, 0.9);
    outline-offset: 2px;
}

.ds-tools-card__meta {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 10px;
}

.ds-tools-card__tag {
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 5px 9px;
    border-radius: 999px;
    background-color: rgba(56, 189, 248, 0.1);
    color: #7dd3fc;
}

.ds-tools-card__tag-en {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.ds-tools-card__tag-zh {
    margin-top: 2px;
    font-size: 0.72rem;
    line-height: 1.35;
    color: #bae6fd;
}

.ds-tools-card__icon {
    flex-shrink: 0;
    color: #93c5fd;
    font-size: 1rem;
    line-height: 1;
}

.ds-tools-card__title {
    margin: 0 0 8px;
}

.ds-tools-card__title-en {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.4;
    color: #f8fafc;
}

.ds-tools-card__title-zh {
    margin-top: 3px;
    font-size: 0.9rem;
    line-height: 1.5;
    color: #cbd5e1;
}

.ds-tools-card__description {
    margin: 0;
}

.ds-tools-card__description-en {
    font-size: 0.93rem;
    line-height: 1.6;
    color: #dbe4f0;
}

.ds-tools-card__description-zh {
    margin-top: 4px;
    font-size: 0.88rem;
    line-height: 1.6;
    color: #94a3b8;
}

/* ==========================================
   Responsive
========================================== */
@media (max-width: 640px) {
    .ds-tools-shell {
        width: min(100% - 20px, 960px);
        padding: 20px 0 28px;
    }

    .ds-tools-grid,
    .ds-tools-grid--single {
        grid-template-columns: 1fr;
    }

    .ds-tools-card {
        padding: 14px;
    }
}