/* Skills Encyclopedia (Custom) - No Tailwind
   Page: /skills/
   Depends on:
   - /style.css (shared header/footer + tokens)
   - /skills/skills-design.css (skills design system)
*/

.skills-encyclopedia .skills-hero {
    margin-bottom: 1.5rem;
}

.skills-ency-controls {
    margin-top: 1.5rem;
}

.skills-ency-controls-inner {
    display: grid;
    gap: 1rem;
}

.skills-ency-search {
    position: relative;
}

.skills-ency-search-icon {
    position: absolute;
    left: 0.9rem;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--skills-dim);
    pointer-events: none;
}

.skills-ency-search-input {
    width: 100%;
    min-height: var(--touch-target);
    padding: 0.8rem 1rem 0.8rem 3rem;
    border-radius: 14px;
    border: 1px solid var(--skills-border);
    background: rgba(255, 255, 255, 0.04);
    color: var(--skills-text);
    font-size: 1rem;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.skills-ency-search-input::placeholder {
    color: rgba(255, 255, 255, 0.45);
}

.skills-ency-search-input:focus {
    outline: none;
    border-color: rgba(var(--skills-accent-rgb), 0.55);
    background: rgba(255, 255, 255, 0.06);
}

.skills-ency-filterbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    justify-content: space-between;
}

.skills-ency-filter-left {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.skills-ency-filter-label {
    font-size: 0.9rem;
    color: var(--skills-dim);
    font-weight: 700;
}

.skills-ency-filter-btn {
    min-height: 40px;
    padding: 0.45rem 0.85rem;
    border-radius: 999px;
    border: 1px solid var(--skills-border);
    background: rgba(255, 255, 255, 0.03);
    color: rgba(255, 255, 255, 0.82);
    font-weight: 750;
    letter-spacing: 0.01em;
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease, transform 0.15s ease;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.skills-ency-filter-btn:hover {
    transform: translateY(-1px);
    border-color: rgba(var(--skills-accent-rgb), 0.45);
    background: rgba(var(--skills-accent-rgb), 0.10);
}

.skills-ency-filter-btn:focus-visible {
    outline: 2px solid rgba(var(--skills-accent-rgb), 0.75);
    outline-offset: 2px;
}

.skills-ency-filter-btn.is-active {
    border-color: rgba(var(--skills-accent-rgb), 0.65);
    background: rgba(var(--skills-accent-rgb), 0.18);
    color: #ffffff;
}

.skills-ency-active-filters {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.skills-ency-filter-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    border: 1px solid rgba(var(--skills-accent-rgb), 0.35);
    background: rgba(var(--skills-accent-rgb), 0.14);
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.88rem;
    font-weight: 750;
}

.skills-ency-filter-tag button {
    width: 22px;
    height: 22px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(0, 0, 0, 0.20);
    color: rgba(255, 255, 255, 0.85);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    line-height: 1;
    transition: background 0.15s ease, border-color 0.15s ease;
}

.skills-ency-filter-tag button:hover {
    background: rgba(0, 0, 0, 0.35);
    border-color: rgba(255, 255, 255, 0.22);
}

.skills-ency-filter-tag button:focus-visible {
    outline: 2px solid rgba(var(--skills-accent-rgb), 0.75);
    outline-offset: 2px;
}

.skills-ency-results {
    margin: 0;
    font-size: 0.92rem;
    color: var(--skills-dim);
}

.skills-ency-alphabet {
    position: sticky;
    top: calc(var(--nav-height) + 0.6rem);
    z-index: 12;
    margin-top: 1.25rem;
    padding: 0.7rem 0.6rem;
    border-radius: 14px;
    border: 1px solid var(--skills-border);
    background: rgba(15, 21, 36, 0.78);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.skills-ency-alphabet-inner {
    display: flex;
    gap: 0.35rem;
    justify-content: center;
    flex-wrap: wrap;
    max-width: 100%;
}

@media (max-width: 560px) {
    .skills-ency-alphabet-inner {
        justify-content: flex-start;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 0.35rem;
    }

    .skills-ency-alphabet-inner::-webkit-scrollbar {
        height: 6px;
    }

    .skills-ency-alphabet-inner::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, 0.12);
        border-radius: 999px;
    }
}

.skills-ency-letter-link {
    width: 2rem;
    height: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    border: 1px solid transparent;
    text-decoration: none;
    color: rgba(255, 255, 255, 0.78);
    font-weight: 850;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
    flex: 0 0 auto;
}

.skills-ency-letter-link:hover {
    transform: translateY(-1px);
    background: rgba(var(--skills-accent-rgb), 0.14);
    border-color: rgba(var(--skills-accent-rgb), 0.28);
    color: #ffffff;
}

.skills-ency-letter-link.is-active {
    background: rgba(var(--skills-accent-rgb), 0.22);
    border-color: rgba(var(--skills-accent-rgb), 0.45);
    color: #ffffff;
}

.skills-ency-letter-link.is-disabled {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: none;
}

.skills-ency-list {
    margin-top: 1.5rem;
    display: grid;
    gap: 1.25rem;
}

.skills-ency-letter-section {
    scroll-margin-top: calc(var(--nav-height) + 7rem);
}

.skills-ency-letter-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 0 0 0.75rem 0;
    padding-top: 0.75rem;
}

.skills-ency-letter {
    font-family: 'Instrument Serif', ui-serif, Georgia, serif;
    font-weight: 400;
    font-size: 3rem;
    line-height: 1;
    margin: 0;
    opacity: 0.14;
    color: rgba(var(--skills-accent-rgb), 1);
}

.skills-ency-letter-rule {
    height: 1px;
    flex: 1;
    background: rgba(255, 255, 255, 0.06);
}

.skills-ency-entry {
    border: 1px solid var(--skills-border);
    border-radius: var(--skills-radius-sm);
    background: rgba(255, 255, 255, 0.028);
    transition: border-color 0.2s ease, background 0.2s ease;
    overflow: hidden;
}

.skills-ency-entry:hover {
    border-color: rgba(var(--skills-accent-rgb), 0.38);
    background: rgba(255, 255, 255, 0.04);
}

.skills-ency-entry[open] {
    border-color: rgba(var(--skills-accent-rgb), 0.55);
    background: rgba(var(--skills-accent-rgb), 0.08);
}

.skills-ency-entry summary {
    list-style: none;
    cursor: pointer;
    padding: 1rem 1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    -webkit-tap-highlight-color: transparent;
}

.skills-ency-entry summary::-webkit-details-marker {
    display: none;
}

.skills-ency-entry summary:focus-visible {
    outline: 2px solid rgba(var(--skills-accent-rgb), 0.8);
    outline-offset: -2px;
}

.skills-ency-entry-emoji {
    font-size: 1.25rem;
    line-height: 1;
    margin-top: 0.1rem;
    flex: 0 0 auto;
}

.skills-ency-entry-main {
    flex: 1 1 auto;
    min-width: 0;
}

.skills-ency-entry-title-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.6rem;
}

.skills-ency-entry-title {
    font-size: 1.05rem;
    font-weight: 850;
    letter-spacing: -0.01em;
    color: #ffffff;
}

.skills-ency-entry-meta {
    display: block;
    margin-top: 0.2rem;
    font-size: 0.9rem;
    color: var(--skills-dim);
    font-weight: 650;
}

.skills-ency-entry-chevron {
    width: 20px;
    height: 20px;
    flex: 0 0 auto;
    margin-top: 0.15rem;
    color: rgba(255, 255, 255, 0.55);
    transition: transform 0.2s ease;
}

.skills-ency-entry[open] .skills-ency-entry-chevron {
    transform: rotate(180deg);
}

.skills-ency-entry-body {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.9rem 1rem 1rem;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 1rem;
}

@media (max-width: 900px) {
    .skills-ency-entry-body {
        grid-template-columns: 1fr;
    }
}

.skills-ency-entry-desc {
    margin: 0;
    color: var(--skills-muted);
    line-height: 1.7;
}

.skills-ency-entry-subhead {
    margin: 0.85rem 0 0.5rem 0;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--skills-dim);
    font-weight: 900;
}

.skills-ency-related {
    margin-top: 0.85rem;
}

.skills-ency-related ul {
    margin: 0;
    padding: 0 0 0 1.15rem;
    color: rgba(255, 255, 255, 0.78);
}

.skills-ency-related li + li {
    margin-top: 0.25rem;
}

.skills-ency-related a {
    color: rgba(255, 255, 255, 0.88);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: color 0.15s ease, border-color 0.15s ease;
}

.skills-ency-related a:hover {
    color: #ffffff;
    border-color: rgba(var(--skills-accent-rgb), 0.6);
}

.skills-ency-entry-actions {
    display: grid;
    gap: 0.6rem;
    align-content: start;
}

.skills-ency-action {
    min-height: var(--touch-target);
    padding: 0.65rem 0.85rem;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.04);
    color: rgba(255, 255, 255, 0.88);
    text-decoration: none;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: border-color 0.2s ease, background 0.2s ease, transform 0.15s ease;
    text-align: center;
}

.skills-ency-action:hover {
    transform: translateY(-1px);
    border-color: rgba(var(--skills-accent-rgb), 0.45);
    background: rgba(var(--skills-accent-rgb), 0.12);
    color: #ffffff;
}

.skills-ency-action:focus-visible {
    outline: 2px solid rgba(var(--skills-accent-rgb), 0.75);
    outline-offset: 2px;
}

.skills-ency-action--primary {
    border-color: rgba(var(--skills-accent-rgb), 0.38);
    background: rgba(var(--skills-accent-rgb), 0.16);
    color: rgba(255, 255, 255, 0.95);
}

.skills-ency-action--primary:hover {
    border-color: rgba(var(--skills-accent-rgb), 0.62);
    background: rgba(var(--skills-accent-rgb), 0.22);
}

.skills-ency-empty,
.skills-ency-error {
    margin-top: 1.5rem;
    padding: 1.25rem;
    border-radius: var(--skills-radius);
    border: 1px solid var(--skills-border);
    background: rgba(255, 255, 255, 0.03);
    text-align: center;
    color: var(--skills-muted);
}

.skills-ency-empty svg,
.skills-ency-error svg {
    width: 56px;
    height: 56px;
    margin: 0 auto 0.75rem;
    opacity: 0.18;
}

.skills-ency-empty p,
.skills-ency-error p {
    margin: 0;
}

.skills-ency-empty p + p,
.skills-ency-error p + p {
    margin-top: 0.35rem;
    color: var(--skills-dim);
}

@media (prefers-reduced-motion: reduce) {
    .skills-ency-letter-link,
    .skills-ency-entry,
    .skills-ency-entry-chevron,
    .skills-ency-filter-btn,
    .skills-ency-action {
        transition: none;
    }
}