@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&family=DM+Sans:ital,wght@0,300;0,400;0,500;1,300&display=swap');

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

html { scroll-behavior: smooth; }

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--dark-bg-primary);
    color: var(--dark-text);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

.bg-fx {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 10% 0%, var(--dark-primary-15) 0%, var(--transparent) 60%),
        radial-gradient(ellipse 60% 40% at 90% 100%, var(--dark-secondary-15) 0%, var(--transparent) 60%),
        radial-gradient(ellipse 40% 60% at 50% 50%, var(--accent-1-primary-10) 0%, var(--transparent) 70%);
    pointer-events: none;
    z-index: 0;
}

.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(var(--dark-primary-05) 1px, transparent 1px),
        linear-gradient(90deg, var(--dark-primary-05) 1px, transparent 1px);
    background-size: 48px 48px;
    pointer-events: none;
    z-index: 0;
}

.app {
    position: relative;
    z-index: 1;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 32px 80px;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 0;
    margin-bottom: 0;
    border-bottom: 1px solid var(--dark-primary-12);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-logo {
    width: 30px;
    height: 30px;
    object-fit: contain;
}

.brand-fallback {
    width: 30px;
    height: 30px;
    background: var(--dark-primary-25);
    border: 1px solid var(--dark-primary-40);
    border-radius: 7px;
    display: none;
    align-items: center;
    justify-content: center;
    font-family: 'Syne', sans-serif;
    font-weight: 800;
    font-size: 13px;
    color: var(--dark-secondary);
}

.brand-name {
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    font-size: 16px;
    color: var(--dark-text);
    letter-spacing: -0.02em;
}

.brand-name .q {
    color: var(--dark-primary);
}

.topbar-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    border-radius: 8px;
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid var(--dark-primary-50);
    background: var(--dark-primary-20);
    color: var(--dark-secondary);
    letter-spacing: 0.01em;
    box-shadow: 0 0 12px var(--dark-primary-20), inset 0 0 8px var(--dark-primary-10);
}



.hero {
    display: grid;
    grid-template-columns: 1fr 320px;
    align-items: center;
    gap: 48px;
    padding: 56px 0 52px;
    border-bottom: 1px solid var(--dark-primary-08);
    margin-bottom: 36px;
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.hero-eyebrow {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--dark-secondary-50);
    margin-bottom: 16px;
}

.eyebrow-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--dark-primary);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.7); }
}

.hero-title {
    font-family: 'Syne', sans-serif;
    font-weight: 800;
    font-size: clamp(52px, 8vw, 88px);
    letter-spacing: -0.05em;
    line-height: 0.9;
    color: var(--dark-text);
    margin-bottom: 20px;
}

.hero-title .q {
    color: var(--dark-primary);
}

.hero-sub {
    font-size: 14px;
    color: var(--white-40);
    font-weight: 300;
    line-height: 1.7;
    max-width: 380px;
    margin-bottom: 32px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 20px;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.stat-num {
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    font-size: 22px;
    color: var(--dark-text);
    letter-spacing: -0.03em;
}

.stat-lbl {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--dark-secondary-40);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.stat-div {
    width: 1px;
    height: 28px;
    background: var(--dark-primary-20);
}

.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-svg {
    width: 100%;
    max-width: 300px;
    height: auto;
    overflow: visible;
}

.ring {
    transform-origin: 150px 150px;
}

.r1 { animation: spin-cw 60s linear infinite; }
.r2 { animation: spin-ccw 40s linear infinite; }
.r3 { animation: spin-cw 30s linear infinite; }
.r4 { animation: spin-ccw 20s linear infinite; }

@keyframes spin-cw {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes spin-ccw {
    from { transform: rotate(0deg); }
    to { transform: rotate(-360deg); }
}

.orb-center {
    animation: breathe 3s ease-in-out infinite;
    transform-origin: 150px 150px;
}

@keyframes breathe {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.06); opacity: 0.85; }
}

.pulse-ring {
    animation: pulse-expand 2.5s ease-out infinite;
    transform-origin: 150px 150px;
}

.pulse-2 {
    animation-delay: 1.25s;
}

@keyframes pulse-expand {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(2.2); opacity: 0; }
}

.orb-node {
    animation: orb-appear 0.6s ease-out both, orb-float 4s ease-in-out infinite;
}

.orb-node[data-delay="0"] { animation-delay: 0.1s, 0s; }
.orb-node[data-delay="1"] { animation-delay: 0.2s, 0.5s; }
.orb-node[data-delay="2"] { animation-delay: 0.3s, 1s; }
.orb-node[data-delay="3"] { animation-delay: 0.4s, 1.5s; }
.orb-node[data-delay="4"] { animation-delay: 0.5s, 2s; }
.orb-node[data-delay="5"] { animation-delay: 0.6s, 2.5s; }
.orb-node[data-delay="6"] { animation-delay: 0.7s, 3s; }
.orb-node[data-delay="7"] { animation-delay: 0.8s, 3.5s; }

@keyframes orb-appear {
    from { opacity: 0; transform: scale(0.6); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes orb-float {
    0%, 100% { opacity: 0.85; }
    50% { opacity: 1; }
}

.scan-dot {
    animation: scan-orbit 8s linear infinite;
    transform-origin: 150px 150px;
}

@keyframes scan-orbit {
    from { transform: rotate(0deg) translateX(0) translateY(0); }
    to { transform: rotate(360deg); }
}

.search-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.search-wrap {
    position: relative;
    flex: 1;
    max-width: 480px;
}

.search-icon {
    position: absolute;
    left: 13px;
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 14px;
    color: var(--dark-secondary-40);
    pointer-events: none;
}

#search {
    width: 100%;
    padding: 10px 16px 10px 40px;
    background: var(--dark-primary-08);
    border: 1px solid var(--dark-primary-20);
    border-radius: 10px;
    color: var(--dark-text);
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}

#search::placeholder { color: var(--dark-secondary-40); }

#search:focus {
    border-color: var(--dark-primary-50);
    background: var(--dark-primary-12);
    box-shadow: 0 0 0 3px var(--dark-primary-10);
}

.match-count {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--dark-secondary-40);
    white-space: nowrap;
}

.tree-wrap {
    border: 1px solid var(--dark-primary-15);
    border-radius: 14px;
    background: var(--dark-bg-secondary);
    overflow: hidden;
}

.tree {
    list-style: none;
    padding: 6px 0;
    margin: 0;
}

.tree .tree {
    margin-left: 0;
    padding: 2px 0 4px 0;
    border-left: none;
}

.node-item { position: relative; }

.node-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 20px;
    cursor: pointer;
    user-select: none;
    transition: background 0.12s;
    text-decoration: none;
    border-radius: 0;
}

.tree .tree .node-row { padding-left: 44px; }
.tree .tree .tree .node-row { padding-left: 72px; }

.node-row:hover { background: var(--dark-primary-08); }
.node-row.expanded { background: var(--dark-primary-05); }

a.node-row:hover .node-label { color: var(--dark-secondary); }

.caret {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    color: var(--dark-secondary-40);
    transition: transform 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.caret svg { width: 10px; height: 10px; }
.caret.open { transform: rotate(90deg); }

.dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}

.dot-w { background: var(--info-primary); }
.dot-l { background: var(--dark-accent-3); }
.dot-n { background: var(--warning-primary); }
.dot-m { background: var(--accent-1-500); }
.dot-h { background: var(--error-primary); }
.dot-i { background: var(--warn-2-500); }
.dot-x { background: var(--neutral-slate-500); }

.node-label {
    font-size: 13px;
    color: var(--dark-text);
    line-height: 1.5;
    font-family: 'DM Sans', sans-serif;
    transition: color 0.12s;
    flex: 1;
}

.node-label.cat {
    font-weight: 500;
    font-size: 13px;
    font-family: 'Syne', sans-serif;
    color: var(--dark-text);
}

.node-label.leaf {
    color: var(--white-50);
    font-size: 12px;
}

.node-tag {
    font-size: 10px;
    padding: 2px 9px;
    border-radius: 20px;
    flex-shrink: 0;
    font-family: 'Syne', sans-serif;
    font-weight: 500;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.tag-c {
    background: var(--transparent);
    color: var(--dark-secondary-40);
    border: 1px solid var(--dark-primary-15);
}

.tag-e {
    background: var(--info-light);
    color: var(--info-primary);
    border: 1px solid var(--info-border);
}

.tag-t {
    background: var(--success-light);
    color: var(--success-primary);
    border: 1px solid var(--success-border);
}

.tag-s {
    background: var(--warning-light);
    color: var(--warning-primary);
    border: 1px solid var(--warning-border);
}

.tag-k {
    background: var(--dark-primary-12);
    color: var(--dark-secondary);
    border: 1px solid var(--dark-primary-25);
}

.children {
    overflow: hidden;
    border-top: 1px solid var(--dark-primary-08);
    border-bottom: 1px solid var(--dark-primary-08);
    background: var(--dark-primary-05);
}

.children.hide { display: none; }

.children .children {
    border-top: none;
    border-bottom: none;
    background: var(--dark-primary-05);
}

.link-arrow {
    font-size: 13px;
    color: var(--dark-secondary-40);
    flex-shrink: 0;
    transition: color 0.12s, transform 0.12s;
    font-family: 'JetBrains Mono', monospace;
}

a.node-row:hover .link-arrow {
    color: var(--dark-secondary);
    transform: translateX(3px);
}

.hit-row { background: var(--dark-primary-10); }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--dark-primary-05); }
::-webkit-scrollbar-thumb { background: var(--dark-primary-25); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--dark-primary-40); }
::selection { background: var(--dark-primary-30); color: var(--dark-text); }

@media (max-width: 768px) {
    .app { padding: 0 16px 48px; }
    .hero { grid-template-columns: 1fr; gap: 32px; padding: 40px 0 36px; }
    .hero-visual { display: none; }
    .hero-title { font-size: 52px; }
    .topbar-nav { gap: 6px; }
    .nav-btn { padding: 6px 12px; font-size: 12px; }
    .tree .tree .node-row { padding-left: 32px; }
    .tree .tree .tree .node-row { padding-left: 52px; }
}