:root {
    --bg: #141920;
    --panel: #1b2229;
    --border: #263040;
    --accent: #00e5a0;
    --accent2: #0099ff;
    --warn: #ffb300;
    --danger: #ff3d3d;
    --text: #c8d4de;
    --muted: #4a5a6a;
    --mono: 'Share Tech Mono', monospace;
    --sans: 'Barlow', sans-serif;
    --pre-bg: rgba(0,0,0,0.3);
    --sensor-name-color: #fff;
    --schema-pre-bg: rgba(0,0,0,0.4);
}
:root.light {
    --bg: #f0f3f7;
    --panel: #ffffff;
    --border: #d4dde8;
    --accent: #00a370;
    --accent2: #0070cc;
    --warn: #c47f00;
    --danger: #d42b2b;
    --text: #2c3a47;
    --muted: #7a8fa3;
    --pre-bg: rgba(0,0,0,0.04);
    --sensor-name-color: #0f1923;
    --schema-pre-bg: rgba(0,0,0,0.05);
}

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

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main { flex: 1; }

body::after {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0,0,0,0.03) 2px,
        rgba(0,0,0,0.03) 4px
    );
    pointer-events: none;
    z-index: 9999;
}
:root.light body::after { display: none; }

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* ── HEADER ── */
header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px clamp(16px, 4vw, 48px);
    border-bottom: 1px solid var(--border);
    background: var(--panel);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo { display: flex; align-items: center; gap: 12px; }
.logo-icon {
    width: 32px; height: 32px;
    border: 2px solid var(--accent);
    border-radius: 4px;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--mono);
    font-size: 13px;
    color: var(--accent);
    animation: pulse-border 3s infinite;
}
@keyframes pulse-border {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0,229,160,0.4); }
    50%       { box-shadow: 0 0 0 6px rgba(0,229,160,0); }
}
.logo-text {
    font-weight: 700;
    font-size: 15px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--sensor-name-color);
}
.logo-sub {
    font-size: 12px;
    color: var(--muted);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 300;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.hub-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-family: var(--mono);
    color: var(--muted);
}
.dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--muted);
}
.dot.ok { background: var(--accent); box-shadow: 0 0 8px var(--accent); }

.theme-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.08em;
    transition: all 0.2s;
    user-select: none;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.toggle-track {
    width: 32px; height: 17px;
    border-radius: 9px;
    background: var(--border);
    position: relative;
    transition: background 0.25s;
    flex-shrink: 0;
}
.theme-toggle.active .toggle-track { background: var(--accent); }
.toggle-thumb {
    width: 11px; height: 11px;
    border-radius: 50%;
    background: var(--muted);
    position: absolute;
    top: 3px; left: 3px;
    transition: transform 0.25s, background 0.25s;
}
.theme-toggle.active .toggle-thumb { transform: translateX(15px); background: #000; }

/* ── MAIN LAYOUT ── */
main {
    padding: 40px clamp(16px, 4vw, 48px);
}

/* ── HERO ── */
.hero {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 40px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border);
}
.hero-left { flex: 1; }
.repo-name {
    font-family: var(--mono);
    font-size: 28px;
    color: var(--accent);
    letter-spacing: 0.04em;
    margin-bottom: 6px;
}
.repo-desc {
    font-size: 15px;
    font-weight: 300;
    color: var(--text);
    margin-bottom: 18px;
    max-width: 560px;
    line-height: 1.6;
}
.hero-meta {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}
.meta-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.meta-label {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
}
.meta-value {
    font-family: var(--mono);
    font-size: 14px;
    color: var(--accent2);
}

.hero-actions { display: flex; flex-direction: column; gap: 10px; align-items: flex-end; }

.btn {
    font-family: var(--sans);
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 10px 22px;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #000; }
.btn-primary:hover { filter: brightness(1.15); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-outline {
    background: transparent;
    color: var(--accent2);
    border: 1.5px solid var(--accent2);
}
.btn-outline:hover { background: rgba(0,153,255,0.08); }

/* ── SECTION TITLE ── */
.section-title {
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

/* ── STATS ROW ── */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px;
    margin-bottom: 40px;
}
.stat-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 16px 20px;
}
.stat-number {
    font-family: var(--mono);
    font-size: 28px;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 4px;
}
.stat-label {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
}

/* ── PACKAGE TABLE ── */
.table-wrap {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 40px;
}
.table-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
}
.search-input {
    background: var(--pre-bg);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 7px 12px;
    font-family: var(--mono);
    font-size: 13px;
    color: var(--text);
    outline: none;
    transition: border-color 0.2s;
    width: 220px;
}
.search-input:focus { border-color: var(--accent); }
.search-input::placeholder { color: var(--muted); opacity: 0.6; }

.pkg-count {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--muted);
}

table { width: 100%; border-collapse: collapse; }
thead tr { background: var(--schema-pre-bg); }
th {
    text-align: left;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    padding: 10px 20px;
    border-bottom: 1px solid var(--border);
}
td {
    padding: 12px 20px;
    border-bottom: 1px solid rgba(38,48,64,0.5);
    font-family: var(--mono);
    font-size: 13px;
    color: var(--text);
}
:root.light td { border-bottom-color: var(--border); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(0,229,160,0.025); }
td.pkg-name { color: var(--accent2); font-size: 14px; }
td.pkg-ver  { color: var(--accent); }
td.pkg-desc { color: var(--text); }

.tag {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 2px;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: rgba(74,90,106,0.15);
    color: var(--muted);
    border: 1px solid rgba(74,90,106,0.3);
}
.tag.meta {
    background: rgba(74,90,106,0.15);
    color: var(--muted);
    border-color: rgba(74,90,106,0.3);
}
.tag.custom {
    background: rgba(0,229,160,0.1);
    color: var(--accent);
    border-color: rgba(0,229,160,0.25);
}
.tag.patched {
    background: rgba(0,153,255,0.1);
    color: var(--accent2);
    border-color: rgba(0,153,255,0.25);
}
.tag.fork {
    background: rgba(160,100,255,0.1);
    color: #a064ff;
    border-color: rgba(160,100,255,0.25);
}

/* ── MODAL ── */
.modal-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.65);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(2px);
}
.modal-backdrop.open { display: flex; }

.modal {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 6px;
    width: 600px;
    max-width: calc(100vw - 40px);
    max-height: calc(100vh - 80px);
    overflow-y: auto;
    position: relative;
    animation: modal-in 0.18s ease;
}
@keyframes modal-in {
    from { opacity: 0; transform: translateY(-12px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--border);
}
.modal-title {
    font-family: var(--mono);
    font-size: 13px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
}
.modal-close {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--muted);
    font-family: var(--mono);
    font-size: 16px;
    width: 28px; height: 28px;
    border-radius: 3px;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.15s;
    line-height: 1;
}
.modal-close:hover { border-color: var(--danger); color: var(--danger); }

.modal-body { padding: 24px; }

.step {
    display: flex;
    gap: 16px;
    margin-bottom: 28px;
}
.step:last-child { margin-bottom: 0; }

.step-num {
    flex-shrink: 0;
    width: 26px; height: 26px;
    border-radius: 50%;
    border: 1.5px solid var(--accent);
    color: var(--accent);
    font-family: var(--mono);
    font-size: 12px;
    display: flex; align-items: center; justify-content: center;
    margin-top: 2px;
}
.step-content { flex: 1; }
.step-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--sensor-name-color);
    margin-bottom: 8px;
    letter-spacing: 0.03em;
}
.step-desc {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.6;
    margin-bottom: 10px;
}

.code-block {
    position: relative;
    background: var(--pre-bg);
    border: 1px solid var(--border);
    border-left: 2px solid var(--accent);
    border-radius: 3px;
    padding: 12px 14px;
    font-family: var(--mono);
    font-size: 13px;
    color: var(--text);
    overflow-x: auto;
    white-space: pre;
}
.code-block .comment { color: var(--muted); }
.code-block .kw      { color: var(--accent2); }
.code-block .val     { color: var(--accent); }

.copy-btn {
    position: absolute;
    top: 7px; right: 8px;
    background: var(--border);
    border: none;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 3px 8px;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.15s;
}
.copy-btn:hover { background: var(--accent); color: #000; }
.copy-btn.copied { background: var(--accent); color: #000; }

.step-divider {
    width: 1.5px;
    height: 16px;
    background: var(--border);
    margin-left: 12px;
    margin-bottom: 0;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.modal-note {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--muted);
}

/* ── FOOTER ── */
footer {
    border-top: 1px solid var(--border);
    padding: 24px clamp(16px, 4vw, 48px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--muted);
}

/* ── FILTER HIDDEN ── */
.pkg-row.hidden { display: none; }

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
    /* header */
    .hub-status span { display: none; }
    .header-right { gap: 10px; }
    .theme-toggle { padding: 6px 8px; }
    #theme-label { display: none; }
    .logo-sub { display: none; }

    /* hero */
    .hero { flex-direction: column; gap: 20px; }
    .repo-name { font-size: 20px; }
    .repo-desc { font-size: 14px; max-width: 100%; }
    .hero-meta { gap: 16px; }
    .hero-actions {
        flex-direction: row;
        width: 100%;
    }
    .hero-actions .btn { flex: 1; text-align: center; }

    /* table */
    td.pkg-desc, th:nth-child(3) { display: none; }
    .search-input { width: 100%; }
    .table-toolbar { flex-direction: column; align-items: flex-start; gap: 10px; }

    /* modal */
    .modal {
        max-height: 90vh;
        width: calc(100vw - 40px);
    }
    .modal-header { padding: 16px 16px 12px; }
    .modal-body { padding: 16px; overflow-x: hidden; }
    .modal-footer {
        padding: 12px 16px;
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    .modal-footer .btn { text-align: center; }
    .modal-note { font-size: 11px; white-space: normal; }
    .step-desc { font-size: 12px; word-break: break-word; }
    .step-title { word-break: break-word; }
    .step-content { min-width: 0; overflow: hidden; }
    .code-block {
        font-size: 12px;
        padding: 10px 12px;
        padding-right: 56px;
        overflow-x: auto;
        white-space: pre;
        max-width: 100%;
    }

    /* footer */
    footer { flex-direction: column; gap: 4px; text-align: center; }
}