:root {
    --bg: #000;
    --green: #7fbf7f;
    --green-bright: #90ee90;
    --green-dim: #4d8b4d;
    --border: #2f5f2f;
    --panel: rgba(8, 16, 8, 0.85);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    background: var(--bg);
    color: var(--green);
    font-family: "Source Code Pro", ui-monospace, monospace;
    line-height: 1.5;
    text-shadow: 0 0 2px rgba(127, 191, 127, 0.25);
}

a { color: var(--green-bright); text-decoration: none; }
a:hover { text-shadow: 0 0 6px rgba(144, 238, 144, 0.5); }

/* ---------- loader ---------- */
#loader {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    z-index: 50;
}
#loader[hidden] { display: none; }
.loader-box {
    width: min(440px, 86vw);
    border: 1px solid var(--green-dim);
    background: var(--panel);
    padding: 28px 26px;
    box-shadow: 0 0 22px rgba(127, 191, 127, 0.12);
}
.loader-title {
    color: var(--green-bright);
    letter-spacing: 4px;
    font-size: 15px;
    font-weight: 600;
}
.loader-sub { font-size: 12px; opacity: 0.75; margin: 10px 0 18px; }
.bar {
    height: 6px;
    background: rgba(77, 139, 77, 0.25);
    border: 1px solid var(--border);
    overflow: hidden;
}
#bar-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--green-dim), var(--green-bright));
    transition: width 0.15s ease;
    box-shadow: 0 0 8px rgba(144, 238, 144, 0.5);
}
#loader-status { font-size: 11px; margin-top: 10px; opacity: 0.7; letter-spacing: 1px; }

/* ---------- layout ---------- */
#app[hidden] { display: none; }
#app {
    max-width: 1180px;
    margin: 0 auto;
    padding: 28px 20px 40px;
}
header h1 {
    margin: 0;
    color: var(--green-bright);
    letter-spacing: 5px;
    font-size: 1.7em;
    text-shadow: 0 0 7px rgba(127, 191, 127, 0.4);
}
.tagline { max-width: 720px; font-size: 13px; opacity: 0.8; margin: 8px 0 0; }

/* ---------- input ---------- */
.input-area { margin: 26px 0 18px; }
.input-row { display: flex; gap: 10px; }
#text {
    flex: 1;
    font-family: inherit;
    font-size: 14px;
    color: var(--green-bright);
    background: rgba(10, 20, 10, 0.85);
    border: 1px solid var(--green-dim);
    padding: 10px 12px;
    outline: none;
}
#text:focus { border-color: var(--green-bright); box-shadow: 0 0 8px rgba(144, 238, 144, 0.2); }
button {
    font-family: inherit;
    font-size: 13px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--green);
    background: rgba(10, 20, 10, 0.85);
    border: 1px solid var(--green-dim);
    padding: 0 22px;
    cursor: pointer;
    transition: all 0.18s ease;
}
button:hover:not(:disabled) { background: var(--green-dim); color: #000; }
button:disabled { opacity: 0.4; cursor: progress; }

.tokens { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; min-height: 28px; }
.tok {
    border: 1px solid var(--border);
    background: rgba(20, 36, 20, 0.6);
    padding: 3px 7px;
    font-size: 12px;
    cursor: pointer;
    white-space: pre;
    transition: all 0.12s ease;
}
.tok:hover { border-color: var(--green-bright); }
.tok.sel {
    background: var(--green-dim);
    color: #000;
    border-color: var(--green-bright);
    box-shadow: 0 0 8px rgba(144, 238, 144, 0.4);
}

.legend { font-size: 11.5px; margin-top: 12px; opacity: 0.85; display: flex; gap: 8px; flex-wrap: wrap; align-items: baseline; }
.legend-label { color: var(--green-dim); text-transform: uppercase; letter-spacing: 1px; }
#query-label { color: var(--green-bright); }
.legend-hint { opacity: 0.5; }

/* ---------- panels ---------- */
.grid-area {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 18px;
    margin-top: 8px;
    align-items: start;
}
.panel {
    border: 1px solid var(--border);
    background: var(--panel);
    padding: 14px;
}
.panel-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 10px;
    font-size: 12px;
    letter-spacing: 1px;
    margin-bottom: 12px;
    color: var(--green-bright);
}
.dim { color: var(--green-dim); font-weight: 400; }
#grid { width: 100%; height: auto; display: block; cursor: pointer; image-rendering: pixelated; }

/* detail */
#detail { width: 100%; height: auto; display: block; }
.arc-wrap { margin-top: 16px; }
.arc-title { font-size: 11.5px; letter-spacing: 1px; color: var(--green-dim); text-transform: uppercase; }
.hl { color: var(--green-bright); text-transform: none; letter-spacing: 0; }
#arc { width: 100%; height: auto; display: block; margin-top: 6px; }

.pred { margin-top: 18px; border-top: 1px solid var(--border); padding-top: 12px; }
.pred-title { font-size: 11.5px; letter-spacing: 1px; color: var(--green-dim); text-transform: uppercase; margin-bottom: 8px; }
.pred-row { display: flex; align-items: center; gap: 8px; font-size: 12px; margin: 4px 0; }
.pred-tok { width: 96px; white-space: pre; overflow: hidden; text-overflow: ellipsis; color: var(--green-bright); }
.pred-bar-bg { flex: 1; height: 10px; background: rgba(77, 139, 77, 0.18); border: 1px solid var(--border); }
.pred-bar { height: 100%; background: linear-gradient(90deg, var(--green-dim), var(--green-bright)); }
.pred-pct { width: 52px; text-align: right; opacity: 0.8; }

footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 24px;
    font-size: 12px;
}

#tooltip {
    position: fixed;
    pointer-events: none;
    background: rgba(5, 12, 5, 0.96);
    border: 1px solid var(--green-dim);
    padding: 5px 8px;
    font-size: 11px;
    color: var(--green-bright);
    z-index: 40;
    white-space: pre;
    display: none;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.6);
}

@media (max-width: 820px) {
    .grid-area { grid-template-columns: 1fr; }
    header h1 { font-size: 1.4em; letter-spacing: 3px; }
}