:root {
    --bg: #0a0a14;
    --bg2: #11111f;
    --bg3: #181830;
    --accent: #7c6af7;
    --accent2: #f76a8c;
    --accent3: #6af7c8;
    --text: #e8e8f0;
    --text2: #9090b0;
    --border: #2a2a45;
    --code-bg: #0d0d20;
    --yellow: #f7c96a;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
}

/* HEADER */
header {
    background: linear-gradient(135deg, #0f0f2a 0%, #1a0a2e 100%);
    border-bottom: 1px solid var(--border);
    padding: 0 16px;
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 12px;
    height: 56px;
}

.logo {
    font-family: 'Unbounded', sans-serif;
    font-size: 14px;
    font-weight: 700;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    white-space: nowrap;
}

.search-wrap {
    flex: 1;
    position: relative;
}

.search-wrap input {
    width: 100%;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 12px 8px 36px;
    color: var(--text);
    font-size: 14px;
    outline: none;
    font-family: 'Inter', sans-serif;
}

.search-wrap input:focus {
    border-color: var(--accent);
}

.search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text2);
    font-size: 16px;
    pointer-events: none;
}

/* LAYOUT */
.app {
    display: flex;
    min-height: calc(100vh - 56px);
}

/* SIDEBAR */
nav#sidebar {
    width: 220px;
    min-width: 220px;
    background: var(--bg2);
    border-right: 1px solid var(--border);
    padding: 16px 0;
    position: sticky;
    top: 56px;
    height: calc(100vh - 56px);
    overflow-y: auto;
}

nav::-webkit-scrollbar {
    width: 4px;
}

nav::-webkit-scrollbar-track {
    background: transparent;
}

nav::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 2px;
}

.nav-section {
    margin-bottom: 8px;
}

.nav-title {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text2);
    padding: 8px 16px 4px;
}

.nav-item {
    display: block;
    padding: 7px 16px;
    font-size: 13px;
    color: var(--text2);
    cursor: pointer;
    border-left: 2px solid transparent;
    transition: all 0.15s;
    text-decoration: none;
}

.nav-item:hover {
    color: var(--text);
    background: var(--bg3);
}

.nav-item.active {
    color: var(--accent);
    border-left-color: var(--accent);
    background: rgba(124, 106, 247, 0.08);
}

/* MAIN */
main {
    flex: 1;
    padding: 24px 20px;
    max-width: 860px;
    overflow-y: auto;
}

/* SECTION */
.section {
    display: none;
    animation: fadeIn 0.2s ease;
}

.section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-title {
    font-family: 'Unbounded', sans-serif;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 6px;
    background: linear-gradient(90deg, var(--accent), var(--accent3));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-desc {
    color: var(--text2);
    font-size: 14px;
    margin-bottom: 24px;
    line-height: 1.6;
}

/* CARD */
.card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 12px;
    margin-bottom: 16px;
    overflow: hidden;
    transition: border-color 0.2s;
}

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

.card-header {
    padding: 14px 16px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    user-select: none;
}

.card-icon {
    font-size: 20px;
    min-width: 28px;
    text-align: center;
    margin-top: 1px;
}

.card-info {
    flex: 1;
}

.card-name {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent3);
    margin-bottom: 3px;
}

.card-short {
    font-size: 13px;
    color: var(--text2);
    line-height: 1.5;
}

.card-toggle {
    color: var(--text2);
    font-size: 18px;
    transition: transform 0.2s;
    min-width: 20px;
    text-align: center;
}

.card.open .card-toggle {
    transform: rotate(180deg);
}

.card-body {
    display: none;
    padding: 0 16px 16px;
    border-top: 1px solid var(--border);
}

.card.open .card-body {
    display: block;
}

.card-body p {
    font-size: 13px;
    color: var(--text2);
    line-height: 1.7;
    margin: 12px 0 8px;
}

.card-body strong {
    color: var(--text);
}

.tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    margin-right: 6px;
    margin-bottom: 10px;
}

.tag-dom {
    background: rgba(124, 106, 247, 0.2);
    color: var(--accent);
}

.tag-event {
    background: rgba(247, 106, 140, 0.2);
    color: var(--accent2);
}

.tag-array {
    background: rgba(106, 247, 200, 0.2);
    color: var(--accent3);
}

.tag-string {
    background: rgba(247, 201, 106, 0.2);
    color: var(--yellow);
}

.tag-async {
    background: rgba(106, 180, 247, 0.2);
    color: #6ab4f7;
}

pre {
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px;
    overflow-x: auto;
    margin: 8px 0;
}

code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    line-height: 1.7;
    color: var(--text);
}

.kw {
    color: #c792ea;
}

.fn {
    color: #82aaff;
}

.str {
    color: #c3e88d;
}

.num {
    color: var(--yellow);
}

.cm {
    color: #546e7a;
    font-style: italic;
}

.prop {
    color: var(--accent3);
}

.tip {
    background: rgba(124, 106, 247, 0.08);
    border-left: 3px solid var(--accent);
    border-radius: 0 8px 8px 0;
    padding: 10px 14px;
    margin: 10px 0;
    font-size: 13px;
    color: var(--text2);
    line-height: 1.6;
}

.tip strong {
    color: var(--accent);
}

/* MOBILE NAV */
.mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg2);
    border-top: 1px solid var(--border);
    z-index: 200;
    overflow-x: auto;
    white-space: nowrap;
    padding: 8px 0;
}

.mobile-nav-item {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    padding: 4px 14px;
    font-size: 10px;
    color: var(--text2);
    cursor: pointer;
    gap: 3px;
    min-width: 64px;
}

.mobile-nav-item.active {
    color: var(--accent);
}

.mobile-nav-item span:first-child {
    font-size: 18px;
}



/* SEARCH RESULTS */
.search-results {
    display: none;
}

.search-results.active {
    display: block;
}

.search-result-item {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 16px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: border-color 0.2s;
}

.search-result-item:hover {
    border-color: var(--accent);
}

.search-result-name {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--accent3);
    margin-bottom: 4px;
}

.search-result-desc {
    font-size: 12px;
    color: var(--text2);
}

.search-result-cat {
    font-size: 11px;
    color: var(--accent);
    margin-top: 4px;
}

.home-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-top: 8px;
}

.home-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px 10px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.home-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.home-card-icon {
    font-size: 24px;
    margin-bottom: 6px;
}

.home-card-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 4px;
}

.home-card-count {
    font-size: 11px;
    color: var(--text2);
}

/* ================================
   АДАПТИВ 700px — планшети і телефони
   Ховаємо бокову навігацію,
   показуємо нижню мобільну навігацію
================================ */
@media (max-width: 700px) {
    nav#sidebar {
        display: none !important;
        width: 0 !important;
        min-width: 0 !important;
    }

    .mobile-nav {
        display: flex !important;
    }

    .app {
        flex-direction: column;
    }

    main {
        padding: 16px 12px 80px;
        max-width: 100%;
        width: 100%;
    }

    .logo {
        font-size: 12px;
    }

    .section-title {
        font-size: 18px;
    }

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

    .home-card {
        padding: 14px 10px;
    }

    .home-card-icon {
        font-size: 24px;
        margin-bottom: 6px;
    }

    .home-card-title {
        font-size: 12px;
    }
}

/* ================================
   АДАПТИВ 420px (великі телефони)
   iPhone Plus, Samsung Galaxy тощо
================================ */
@media (max-width: 420px) {
    header {
        padding: 0 10px;
        gap: 8px;
    }

    .logo {
        font-size: 11px;
    }

    .search-wrap input {
        font-size: 13px;
        padding: 7px 10px 7px 32px;
    }

    main {
        padding: 14px 10px 80px;
    }

    .section-title {
        font-size: 17px;
    }

    .section-desc {
        font-size: 13px;
    }

    .card-header {
        padding: 12px 12px;
        gap: 10px;
    }

    .card-name {
        font-size: 13px;
    }

    .card-short {
        font-size: 12px;
    }

    .card-body {
        padding: 0 12px 14px;
    }

    .card-body p {
        font-size: 12px;
    }

    pre {
        padding: 10px;
    }

    code {
        font-size: 11px;
    }

    .tip {
        font-size: 12px;
        padding: 8px 12px;
    }

    .home-grid {
        grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
        gap: 10px;
    }

    .home-card {
        padding: 12px 10px;
    }

    .home-card-icon {
        font-size: 24px;
    }

    .home-card-title {
        font-size: 12px;
    }

    .mobile-nav-item {
        padding: 4px 10px;
        min-width: 56px;
        font-size: 9px;
    }

    .mobile-nav-item span:first-child {
        font-size: 16px;
    }

    .search-result-item {
        padding: 10px 12px;
    }

    .search-result-name {
        font-size: 12px;
    }

    .search-result-desc {
        font-size: 11px;
    }
}

/* ================================
   АДАПТИВ 320px (малі телефони)
   iPhone SE, старі Android тощо
================================ */
@media (max-width: 320px) {
    header {
        padding: 0 8px;
        gap: 6px;
        height: 50px;
    }

    .logo {
        font-size: 10px;
        white-space: nowrap;
    }

    .search-wrap input {
        font-size: 12px;
        padding: 6px 8px 6px 28px;
        border-radius: 6px;
    }

    .search-icon {
        font-size: 14px;
        left: 7px;
    }

    main {
        padding: 10px 8px 76px;
    }

    .section-title {
        font-size: 15px;
        margin-bottom: 4px;
    }

    .section-desc {
        font-size: 12px;
        margin-bottom: 16px;
    }

    .card {
        border-radius: 8px;
        margin-bottom: 12px;
    }

    .card-header {
        padding: 10px;
        gap: 8px;
    }

    .card-icon {
        font-size: 16px;
        min-width: 22px;
    }

    .card-name {
        font-size: 12px;
    }

    .card-short {
        font-size: 11px;
    }

    .card-toggle {
        font-size: 14px;
    }

    .card-body {
        padding: 0 10px 12px;
    }

    .card-body p {
        font-size: 11px;
        margin: 8px 0 6px;
    }

    pre {
        padding: 8px;
        border-radius: 6px;
    }

    code {
        font-size: 10px;
        line-height: 1.6;
    }

    .tip {
        font-size: 11px;
        padding: 7px 10px;
    }

    .tag {
        font-size: 10px;
        padding: 1px 6px;
    }

    .home-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .home-card {
        padding: 10px 8px;
        border-radius: 8px;
    }

    .home-card-icon {
        font-size: 20px;
        margin-bottom: 6px;
    }

    .home-card-title {
        font-size: 11px;
    }

    .home-card-count {
        font-size: 10px;
    }

    .mobile-nav-item {
        padding: 3px 8px;
        min-width: 48px;
        font-size: 8px;
        gap: 2px;
    }

    .mobile-nav-item span:first-child {
        font-size: 14px;
    }

    .search-result-item {
        padding: 8px 10px;
        border-radius: 8px;
    }

    .search-result-name {
        font-size: 11px;
    }

    .search-result-desc {
        font-size: 10px;
    }

    .search-result-cat {
        font-size: 10px;
    }
}