/* ===== Tools Page Styles ===== */

.tools-page {
    --tools-bg: #ffffff;
    --tools-surface: #f5f5f5;
    --tools-border: #ededed;
    --tools-border-strong: #dbdbdb;
    --tools-text: #1f2a37;
    --tools-text-muted: #7a7a7a;
    --tools-accent: #3273dc;
    --tools-accent-soft: rgba(50, 115, 220, 0.14);
    --tools-shadow: 0 4px 10px rgba(0, 0, 0, 0.05), 0 0 1px rgba(0, 0, 0, 0.1);
    --tools-radius-sm: 4px;
    --tools-radius-md: 4px;
    --tools-gap: 12px;
    margin: 0;
    color: var(--tools-text);
}

/* ----- Toolbar ----- */
.tools-toolbar {
    position: sticky;
    top: calc(8px + env(safe-area-inset-top));
    z-index: 8;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1rem;
    padding: 10px;
    border: 1px solid var(--tools-border);
    border-radius: var(--tools-radius-md);
    background: #fff;
    box-shadow: var(--tools-shadow);
}

.tools-category-select {
    flex-shrink: 0;
    min-width: 110px;
    padding: 8px 30px 8px 10px;
    font-size: 13px;
    color: var(--tools-text);
    background: var(--tools-surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%238497a8'/%3E%3C/svg%3E") no-repeat right 10px center;
    border: 1px solid var(--tools-border);
    border-radius: var(--tools-radius-sm);
    outline: none;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.tools-category-select:hover {
    background-color: #f6f8fa;
}

.tools-category-select:focus-visible {
    border-color: var(--tools-accent);
    box-shadow: 0 0 0 3px var(--tools-accent-soft);
}

.tools-search-wrap {
    position: relative;
    flex: 1;
    min-width: 0;
}

.tools-search-wrap .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #8a97a8;
    font-size: 12px;
    pointer-events: none;
    transition: color 0.18s ease;
}

.tools-search-wrap input {
    width: 100%;
    padding: 8px 12px 8px 30px;
    font-size: 13px;
    color: var(--tools-text);
    background: var(--tools-surface);
    border: 1px solid var(--tools-border);
    border-radius: var(--tools-radius-sm);
    outline: none;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.tools-search-wrap input::placeholder {
    color: #8a97a8;
}

.tools-search-wrap input:focus-visible {
    border-color: var(--tools-accent);
    box-shadow: 0 0 0 3px var(--tools-accent-soft);
    background: #fff;
}

.tools-search-wrap input:focus-visible + .search-icon {
    color: var(--tools-accent);
}

.tools-meta {
    flex-shrink: 0;
    min-width: 66px;
    font-size: 12px;
    line-height: 1;
    color: var(--tools-text-muted);
    text-align: right;
    white-space: nowrap;
}

/* ----- Group Section ----- */
.tools-group {
    margin-bottom: 1.5rem;
}

.tools-group.is-hidden {
    display: none;
}

.group-header {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0 0 10px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--tools-text-muted);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.group-header .group-icon {
    display: inline-flex;
    width: 14px;
    justify-content: center;
    color: #8a97a8;
}

.group-header .group-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--tools-border), transparent);
}

.group-header .group-count {
    font-size: 11px;
    font-weight: 600;
    color: #8a97a8;
    padding: 1px 6px;
    border: 1px solid var(--tools-border);
    border-radius: 999px;
    background: #f5f5f5;
}

/* ----- Tools Grid ----- */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: var(--tools-gap);
}

@media screen and (max-width: 1200px) {
    .tools-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media screen and (max-width: 900px) {
    .tools-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media screen and (max-width: 520px) {
    .tools-toolbar {
        top: env(safe-area-inset-top);
        flex-wrap: wrap;
        padding: 9px;
        gap: 8px;
    }

    .tools-category-select {
        min-width: 0;
        flex: 1;
    }

    .tools-search-wrap {
        width: 100%;
        flex-basis: 100%;
        order: 3;
    }

    .tools-meta {
        order: 2;
        margin-left: auto;
    }

    .tools-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }
}

/* ----- Tool Card ----- */
.tool-card {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 8px 9px;
    min-height: 0;
    background: var(--tools-bg);
    border: 1px solid var(--tools-border);
    border-radius: var(--tools-radius-sm);
    text-decoration: none;
    color: inherit;
    box-shadow: var(--tools-shadow);
    transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
    overflow: hidden;
}

.tool-card:hover,
.tool-card:focus-visible {
    transform: translateY(-1px);
    border-color: #cfd6df;
    box-shadow: var(--tools-shadow);
}

.tool-card:active {
    transform: translateY(0);
}

.tool-card:focus-visible {
    outline: none;
    box-shadow: var(--tools-shadow), 0 0 0 3px var(--tools-accent-soft);
}

.tool-card.is-hidden {
    display: none;
}

/* ----- Favicon ----- */
.tool-favicon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: none;
    object-fit: contain;
    margin-top: 2px;
    background: transparent;
}

.tool-favicon-fallback {
    flex-shrink: 0;
    display: none;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: none;
    background: #eef3fc;
    color: #3273dc;
    font-size: 12px;
    font-weight: 700;
    margin-top: 2px;
}

.tool-favicon-fallback.is-active {
    display: flex;
}

/* Fallback icon color variants */
.tool-favicon-fallback.color-blue { background-color: #eef3fc; color: #3273dc; }
.tool-favicon-fallback.color-green { background-color: #e8f5e9; color: #2f8f3b; }
.tool-favicon-fallback.color-orange { background-color: #fff3e0; color: #dd6a00; }
.tool-favicon-fallback.color-purple { background-color: #f3e8fc; color: #7f3db8; }
.tool-favicon-fallback.color-red { background-color: #ffebee; color: #c83336; }
.tool-favicon-fallback.color-cyan { background-color: #e0f7fa; color: #008da0; }
.tool-favicon-fallback.color-pink { background-color: #fce4ec; color: #c1175d; }
.tool-favicon-fallback.color-teal { background-color: #e0f2f1; color: #00776d; }

.tool-card-body {
    flex: 1;
    min-width: 0;
}

.tool-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--tools-text);
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tool-desc {
    font-size: 11px;
    color: var(--tools-text-muted);
    line-height: 1.3;
    margin-top: 1px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ----- External Link Badge ----- */
.tool-badge {
    position: absolute;
    top: 0;
    right: 0;
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #b8c2cf;
    font-size: 8px;
    border-bottom-left-radius: 4px;
    transition: color 0.18s ease;
}

.tool-card:hover .tool-badge,
.tool-card:focus-visible .tool-badge {
    color: var(--tools-accent);
}

.tool-card:hover .tool-name,
.tool-card:focus-visible .tool-name {
    color: var(--tools-accent);
}

/* ----- Empty State ----- */
.tools-no-results {
    display: none;
    text-align: center;
    padding: 2.8rem 1rem;
    border: 1px dashed var(--tools-border-strong);
    border-radius: var(--tools-radius-md);
    color: var(--tools-text-muted);
    background: linear-gradient(180deg, #fcfdff 0%, #f8fafc 100%);
}

.tools-no-results.is-visible {
    display: block;
}

.tools-no-results .no-results-icon {
    font-size: 1.4rem;
    color: #8a97a8;
    margin-bottom: 0.45rem;
}

.tools-no-results p {
    margin: 0 0 0.75rem;
    font-size: 13px;
}

.tools-reset-btn {
    padding: 7px 12px;
    border: 1px solid var(--tools-border-strong);
    border-radius: 999px;
    font-size: 12px;
    color: var(--tools-text);
    background: #fff;
    cursor: pointer;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.tools-reset-btn:hover {
    background: #f6f8fa;
    border-color: #b6c0cc;
}

.tools-reset-btn:focus-visible {
    outline: none;
    border-color: var(--tools-accent);
    box-shadow: 0 0 0 3px var(--tools-accent-soft);
}

@media (prefers-reduced-motion: reduce) {
    .tools-page *,
    .tools-page *::before,
    .tools-page *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
    }
}