/* =====================================================
   sbom.study  —  isometric technical documentation
   Palette: #0B1622 #132438 #1A2D44 #1E3A5F #2A3B4D
            #C8D6E5 #00D2FF #00E676 #FF6B35 #C8D6E5
   Type:    IBM Plex Mono · Space Grotesk · Overpass Mono
   ===================================================== */

:root {
    --bg-deep: #0B1622;
    --bg-secondary: #132438;
    --bg-tertiary: #1A2D44;
    --grid-line: #1E3A5F;
    --watermark: #2A3B4D;
    --text: #C8D6E5;
    --text-dim: #8FA3B8;
    --cyan: #00D2FF;
    --green: #00E676;
    --orange: #FF6B35;

    --iso-x: 0.866;   /* cos 30 */
    --iso-y: 0.5;     /* sin 30 */

    --frame-inset: 80px;
    --sidebar-width: 220px;

    --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);

    --font-mono: "IBM Plex Mono", "Menlo", monospace;
    --font-display: "Space Grotesk", "Inter", sans-serif;
    --font-accent: "Overpass Mono", "IBM Plex Mono", monospace;
}

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

html, body {
    background: var(--bg-deep);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 15px;
    line-height: 1.8;
    overflow-x: hidden;
}

body {
    min-height: 100vh;
    background:
        radial-gradient(1200px 800px at 80% 10%, rgba(0,210,255,0.05), transparent 60%),
        radial-gradient(900px 700px at 10% 90%, rgba(255,107,53,0.04), transparent 60%),
        linear-gradient(180deg, #0B1622 0%, #0a1320 50%, #0B1622 100%);
    background-attachment: fixed;
}

a { color: inherit; text-decoration: none; }

/* ---------- BACKGROUND PARALLAX PLANES ---------- */
.bg-plane {
    position: fixed;
    inset: -10vh -5vw;
    pointer-events: none;
    z-index: 0;
}

.bg-plane--deep {
    background:
        radial-gradient(60vmax 40vmax at 50% 35%, rgba(30,58,95,0.18), transparent 60%),
        radial-gradient(50vmax 35vmax at 80% 80%, rgba(0,210,255,0.06), transparent 60%);
    will-change: transform;
}

.bg-plane--grid {
    z-index: 1;
    will-change: transform;
}

.iso-grid {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 800ms var(--ease-out);
}

.is-loaded .iso-grid { opacity: 0.32; }

/* ---------- TRACES (continuous traveling dots) ---------- */
.traces {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1;
    pointer-events: none;
}

.travel-dot {
    fill: var(--cyan);
    filter: drop-shadow(0 0 4px rgba(0,210,255,0.8));
}

/* ---------- BLUEPRINT FRAME ---------- */
.frame {
    position: fixed;
    inset: var(--frame-inset);
    border: 1px solid rgba(30,58,95,0.55);
    pointer-events: none;
    z-index: 2;
}

.frame::before, .frame::after {
    content: "";
    position: absolute;
    inset: 6px;
    border: 1px dashed rgba(30,58,95,0.35);
}

.frame-corner {
    position: absolute;
    width: 22px;
    height: 22px;
    border: 1px solid var(--cyan);
    opacity: 0.65;
}
.frame-corner--tl { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.frame-corner--tr { top: -1px; right: -1px; border-left: none; border-bottom: none; }
.frame-corner--bl { bottom: -1px; left: -1px; border-right: none; border-top: none; }
.frame-corner--br { bottom: -1px; right: -1px; border-left: none; border-top: none; }

.frame-tag {
    position: absolute;
    font-family: var(--font-accent);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.18em;
    color: var(--text-dim);
    background: var(--bg-deep);
    padding: 2px 10px;
    text-transform: uppercase;
}
.frame-tag--top { top: -8px; left: 28px; }
.frame-tag--bottom { bottom: -8px; right: 28px; }

/* ---------- MASTHEAD ---------- */
.masthead {
    position: fixed;
    top: calc(var(--frame-inset) - 40px);
    left: var(--frame-inset);
    right: var(--frame-inset);
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 4;
    font-family: var(--font-accent);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-dim);
}
.masthead-left, .masthead-right { display: flex; align-items: center; gap: 12px; }
.masthead-mono { color: var(--text); }
.masthead-divider { color: var(--grid-line); }
.masthead-meta { color: var(--text-dim); }

.status-dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 10px rgba(0,230,118,0.8);
    animation: dotPulse 2.4s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
}

/* ---------- SIDEBAR ---------- */
.sidebar {
    position: fixed;
    top: 50%;
    left: calc(var(--frame-inset) + 18px);
    transform: translateY(-50%);
    width: var(--sidebar-width);
    z-index: 5;
    pointer-events: auto;
}

.sidebar-label, .sidebar-mark {
    font-family: var(--font-accent);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.22em;
    color: var(--text-dim);
    text-transform: uppercase;
}
.sidebar-label { margin-bottom: 18px; padding-left: 4px; }

.cube-stack {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.cube-item {
    position: relative;
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 4px 8px 4px 4px;
    cursor: pointer;
    transition: transform 400ms var(--spring);
}

.cube-item:hover {
    transform: translate3d(8px, -4px, 0);
}

.cube-label {
    font-family: var(--font-accent);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.18em;
    color: var(--text-dim);
    transition: color 240ms var(--ease-out);
}

.cube-item:hover .cube-label,
.cube-item.is-active .cube-label {
    color: var(--cyan);
}

.iso-cube {
    position: relative;
    width: 28px;
    height: 32px;
    flex-shrink: 0;
    transform-style: preserve-3d;
    transition: transform 400ms var(--spring), filter 240ms var(--ease-out);
}

.iso-cube__top, .iso-cube__left, .iso-cube__right {
    position: absolute;
    width: 14px;
    height: 16px;
    transform-origin: 0 0;
}

.iso-cube__top {
    background: var(--bg-tertiary);
    transform: rotate(60deg) skewX(-30deg) scaleY(0.866);
    top: 0;
    left: 14px;
    border: 1px solid var(--grid-line);
}
.iso-cube__left {
    background: var(--bg-deep);
    transform: rotate(-30deg) skewX(-30deg) scaleY(0.866);
    top: 8px;
    left: 0;
    border: 1px solid var(--grid-line);
    border-left: 1px solid rgba(30,58,95,0.3);
}
.iso-cube__right {
    background: var(--bg-secondary);
    transform: rotate(30deg) skewX(-30deg) scaleY(0.866);
    top: 8px;
    left: 14px;
    border: 1px solid var(--grid-line);
}

.cube-item:hover .iso-cube,
.cube-item.is-active .iso-cube {
    filter: drop-shadow(0 0 8px rgba(0,210,255,0.55));
}

.cube-item.is-active .iso-cube__top { background: var(--cyan); border-color: var(--cyan); }
.cube-item.is-active .iso-cube__left { background: #003a4d; border-color: var(--cyan); }
.cube-item.is-active .iso-cube__right { background: #007090; border-color: var(--cyan); }

.cube-item.is-active {
    transform: translate3d(12px, -4px, 0);
}

.sidebar-foot {
    margin-top: 26px;
    padding-left: 4px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    color: var(--text-dim);
}

/* ---------- MAIN CONTENT FRAME ---------- */
.content {
    position: relative;
    z-index: 3;
    margin-left: calc(var(--frame-inset) + var(--sidebar-width) + 40px);
    margin-right: calc(var(--frame-inset) + 24px);
    padding-top: calc(var(--frame-inset) + 20px);
    padding-bottom: var(--frame-inset);
    will-change: transform;
}

.section {
    position: relative;
    min-height: 100vh;
    padding: 60px 0 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transform: translate3d(0, 0, 0);
    transition: transform 900ms var(--ease-out), opacity 900ms var(--ease-out);
}

.section.is-leaving {
    transform: translate3d(-30%, -17.3%, 0);
    opacity: 0;
}

.section.is-entering {
    animation: enterIso 900ms var(--ease-out) both;
}

@keyframes enterIso {
    0% { transform: translate3d(30%, 17.3%, 0); opacity: 0; }
    100% { transform: translate3d(0, 0, 0); opacity: 1; }
}

.watermark {
    position: absolute;
    top: 40px;
    right: 0;
    font-family: var(--font-display);
    font-weight: 300;
    font-size: 220px;
    line-height: 0.85;
    color: var(--watermark);
    opacity: 0.12;
    pointer-events: none;
    letter-spacing: -0.04em;
    z-index: 0;
    animation: watermarkPulse 4s ease-in-out infinite;
}

@keyframes watermarkPulse {
    0%, 100% { opacity: 0.08; }
    50% { opacity: 0.15; }
}

.section-head {
    max-width: 720px;
    margin-bottom: 56px;
    position: relative;
    z-index: 2;
}
.section-head--narrow { max-width: 600px; }

.section-tag {
    display: inline-block;
    font-family: var(--font-accent);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.22em;
    color: var(--cyan);
    text-transform: uppercase;
    padding: 4px 10px;
    border: 1px solid rgba(0,210,255,0.45);
    margin-bottom: 18px;
}

.section-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 48px;
    line-height: 1.1;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text);
    margin-bottom: 18px;
}

.section-lede {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text);
    max-width: 60ch;
}

/* ---------- HERO ---------- */
.section--hero {
    padding-top: 40px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-stage {
    position: relative;
    aspect-ratio: 5 / 4;
    min-height: 460px;
}

.hero-cluster {
    position: absolute;
    inset: 0;
    transform-style: preserve-3d;
}

.hero-pipes {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.pipe-flow {
    animation: pipeDash 6s linear infinite;
    filter: drop-shadow(0 0 6px rgba(0,210,255,0.5));
}

@keyframes pipeDash {
    to { stroke-dashoffset: -200; }
}

/* HERO assembled cubes */
.hcube {
    position: absolute;
    width: 100px;
    height: 116px;
    transform-style: preserve-3d;
    opacity: 0;
    transform: translate3d(-30%, -17.3%, 0);
    transition: transform 900ms var(--spring), opacity 700ms var(--ease-out), filter 300ms var(--ease-out);
}

.hcube.is-in {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

.hcube__face {
    position: absolute;
    width: 50px;
    height: 58px;
    transform-origin: 0 0;
    border: 1px solid var(--grid-line);
}
.hcube__top {
    background: var(--bg-tertiary);
    transform: rotate(60deg) skewX(-30deg) scaleY(0.866);
    top: 0;
    left: 50px;
}
.hcube__left {
    background: var(--bg-deep);
    transform: rotate(-30deg) skewX(-30deg) scaleY(0.866);
    top: 29px;
    left: 0;
}
.hcube__right {
    background: var(--bg-secondary);
    transform: rotate(30deg) skewX(-30deg) scaleY(0.866);
    top: 29px;
    left: 50px;
}

.hcube--accent .hcube__top { background: #0a3a4f; border-color: var(--cyan); box-shadow: inset 0 0 12px rgba(0,210,255,0.25); }
.hcube--accent .hcube__left { background: #052838; border-color: rgba(0,210,255,0.5); }
.hcube--accent .hcube__right { background: #073a4f; border-color: rgba(0,210,255,0.5); }

.hcube--warn .hcube__top { background: #4a2410; border-color: var(--orange); box-shadow: inset 0 0 12px rgba(255,107,53,0.3); }
.hcube--warn .hcube__left { background: #2a150a; border-color: rgba(255,107,53,0.6); }
.hcube--warn .hcube__right { background: #381a0c; border-color: rgba(255,107,53,0.6); }

/* HERO TEXT */
.hero-text { position: relative; }

.hero-eyebrow {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-accent);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.22em;
    color: var(--cyan);
    text-transform: uppercase;
    margin-bottom: 22px;
}

.tick {
    width: 24px;
    height: 1px;
    background: var(--cyan);
    box-shadow: 0 0 6px rgba(0,210,255,0.8);
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 64px;
    line-height: 1.05;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text);
    margin-bottom: 20px;
    display: flex;
    align-items: baseline;
    gap: 4px;
    min-height: 1.2em;
}

.hero-title__inner { white-space: nowrap; }

.caret {
    color: var(--cyan);
    animation: caretBlink 1.1s steps(2) infinite;
    font-weight: 300;
    font-size: 64px;
    line-height: 1;
}

@keyframes caretBlink {
    0%, 50% { opacity: 1; }
    50.01%, 100% { opacity: 0; }
}

.hero-sub {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    max-width: 52ch;
    margin-bottom: 28px;
}

.hero-spec {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px 28px;
    padding: 20px 0;
    border-top: 1px solid rgba(30,58,95,0.6);
    border-bottom: 1px solid rgba(30,58,95,0.6);
    margin-bottom: 28px;
}

.hero-spec > div {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hero-spec dt {
    font-family: var(--font-accent);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--text-dim);
    text-transform: uppercase;
}

.hero-spec dd {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-dim);
}
.dot--ok { background: var(--green); box-shadow: 0 0 8px rgba(0,230,118,0.6); }
.dot--warn { background: var(--orange); box-shadow: 0 0 8px rgba(255,107,53,0.6); }

.hero-cta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-accent);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.link-arrow {
    color: var(--cyan);
    font-size: 14px;
}

.link--draw {
    position: relative;
    color: var(--cyan);
    padding-bottom: 4px;
}

.link--draw::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 1px;
    background: var(--cyan);
    transition: width 300ms var(--ease-out);
    box-shadow: 0 0 6px rgba(0,210,255,0.6);
}

.link--draw:hover::after { width: 100%; }

/* annotation callouts */
.annotation {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-accent);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.16em;
    color: var(--text-dim);
    text-transform: uppercase;
    pointer-events: none;
    z-index: 3;
}
.annotation .annot-line {
    width: 60px;
    height: 1px;
    background: var(--text-dim);
    position: relative;
}
.annotation .annot-line::before {
    content: "";
    position: absolute;
    left: 0;
    top: -3px;
    width: 1px;
    height: 7px;
    background: var(--text-dim);
}
.annotation--a { top: 110px; left: 22%; }
.annotation--b { bottom: 90px; left: 28%; }

/* ---------- LAYERS / CARDS ---------- */
.card-rack {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    position: relative;
    z-index: 2;
}

.card-stack {
    position: relative;
    height: 280px;
    perspective: 1200px;
}

.card-stack .card {
    position: absolute;
    inset: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--grid-line);
    padding: 24px 22px;
    transition: transform 400ms var(--spring), box-shadow 400ms var(--ease-out), background 240ms var(--ease-out);
    box-shadow: 0 4px 24px rgba(0,0,0,0.35);
}

.card-stack .card--mid {
    transform: translate(8px, 8px);
    background: var(--bg-tertiary);
    z-index: 1;
}
.card-stack .card--low {
    transform: translate(16px, 16px);
    background: var(--bg-deep);
    z-index: 0;
    opacity: 0.7;
}
.card-stack .card--top {
    z-index: 2;
    display: flex;
    flex-direction: column;
}

.card-stack:hover .card--top {
    transform: translateY(-8px) rotate(-0.6deg);
    box-shadow: 0 22px 40px rgba(0,0,0,0.55), 0 0 0 1px rgba(0,210,255,0.35);
    background: linear-gradient(180deg, #15263d 0%, #122035 100%);
}
.card-stack:hover .card--mid { transform: translate(12px, 12px); }
.card-stack:hover .card--low { transform: translate(20px, 20px); }

.card-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.card-num {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 26px;
    color: var(--cyan);
    letter-spacing: 0.06em;
}

.card-tag {
    font-family: var(--font-accent);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--text-dim);
    text-transform: uppercase;
    padding: 3px 8px;
    border: 1px solid var(--grid-line);
}

.card-title {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 20px;
    line-height: 1.25;
    letter-spacing: 0.02em;
    color: var(--text);
    margin-bottom: 12px;
}

.card-body {
    flex: 1;
    font-size: 13px;
    line-height: 1.7;
    color: var(--text);
    margin-bottom: 14px;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-accent);
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 0.16em;
    color: var(--text-dim);
    text-transform: uppercase;
    padding-top: 12px;
    border-top: 1px solid rgba(30,58,95,0.6);
}

.pipe-divider {
    width: 100%;
    height: 80px;
    margin-top: 80px;
    opacity: 0.7;
}
.pipe-divider svg { width: 100%; height: 100%; }

/* ---------- EXPLORER ---------- */
.explorer-shell {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    gap: 40px;
    position: relative;
    z-index: 2;
}

.explorer-stage {
    position: relative;
    aspect-ratio: 10 / 6.2;
    background:
        linear-gradient(180deg, rgba(19,36,56,0.5), rgba(11,22,34,0.7));
    border: 1px solid var(--grid-line);
    overflow: hidden;
}

.explorer-stage::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(transparent 49.5%, rgba(30,58,95,0.25) 50%, transparent 50.5%),
        linear-gradient(90deg, transparent 49.5%, rgba(30,58,95,0.18) 50%, transparent 50.5%);
    background-size: 60px 60px;
    pointer-events: none;
}

.explorer-pipes {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}
#pipesActive { filter: drop-shadow(0 0 6px rgba(0,210,255,0.7)); transition: opacity 240ms var(--ease-out); }

.iso-board {
    position: absolute;
    inset: 0;
    z-index: 2;
}

.cube {
    position: absolute;
    width: 80px;
    height: 92px;
    cursor: pointer;
    transform-style: preserve-3d;
    transition: transform 400ms var(--spring), filter 240ms var(--ease-out);
}

.cube__face {
    position: absolute;
    width: 40px;
    height: 46px;
    transform-origin: 0 0;
    border: 1px solid var(--grid-line);
    transition: background 240ms var(--ease-out), border-color 240ms var(--ease-out);
}
.cube__top {
    background: var(--bg-tertiary);
    transform: rotate(60deg) skewX(-30deg) scaleY(0.866);
    top: 0;
    left: 40px;
}
.cube__left {
    background: var(--bg-deep);
    transform: rotate(-30deg) skewX(-30deg) scaleY(0.866);
    top: 23px;
    left: 0;
}
.cube__right {
    background: var(--bg-secondary);
    transform: rotate(30deg) skewX(-30deg) scaleY(0.866);
    top: 23px;
    left: 40px;
}

.cube__label {
    position: absolute;
    top: 40px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-accent);
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 0.14em;
    color: var(--text-dim);
    text-transform: uppercase;
    white-space: nowrap;
    pointer-events: none;
    z-index: 3;
    transition: color 240ms var(--ease-out);
}

.cube[data-vuln="true"] .cube__top { background: #4a2410; border-color: var(--orange); }
.cube[data-vuln="true"] .cube__left { background: #2a150a; border-color: rgba(255,107,53,0.55); }
.cube[data-vuln="true"] .cube__right { background: #381a0c; border-color: rgba(255,107,53,0.55); }
.cube[data-vuln="true"] .cube__label { color: var(--orange); }

.cube[data-verified="true"] .cube__top { background: #0a4a2a; border-color: var(--green); }
.cube[data-verified="true"] .cube__left { background: #052a17; border-color: rgba(0,230,118,0.55); }
.cube[data-verified="true"] .cube__right { background: #073a22; border-color: rgba(0,230,118,0.55); }
.cube[data-verified="true"] .cube__label { color: var(--green); }

.cube.is-up {
    filter: drop-shadow(0 0 14px rgba(0,210,255,0.7));
}
.cube.is-up .cube__top { border-color: var(--cyan); }
.cube.is-up .cube__left { border-color: rgba(0,210,255,0.7); }
.cube.is-up .cube__right { border-color: rgba(0,210,255,0.7); }

.cube.is-down {
    filter: drop-shadow(0 0 14px rgba(255,107,53,0.7));
}
.cube.is-down .cube__top { border-color: var(--orange); }
.cube.is-down .cube__left { border-color: rgba(255,107,53,0.7); }
.cube.is-down .cube__right { border-color: rgba(255,107,53,0.7); }

.cube:hover, .cube.is-active {
    transform: translateY(-6px);
}

.cube.is-open .cube__top {
    transform: rotate(60deg) skewX(-30deg) scaleY(0.866) translateY(-22px);
    background: var(--cyan);
    border-color: var(--cyan);
}

.cube.is-active .cube__label { color: var(--cyan); }

/* readout panel */
.explorer-readout {
    background: var(--bg-secondary);
    border: 1px solid var(--grid-line);
    padding: 28px 26px;
    position: relative;
}

.explorer-readout::before {
    content: "";
    position: absolute;
    top: 14px;
    right: 14px;
    width: 8px;
    height: 8px;
    background: var(--cyan);
    box-shadow: 0 0 8px rgba(0,210,255,0.7);
    animation: dotPulse 2s ease-in-out infinite;
}

.readout-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
}
.readout-bar {
    width: 36px;
    height: 1px;
    background: var(--cyan);
    box-shadow: 0 0 6px rgba(0,210,255,0.7);
}
.readout-tag {
    font-family: var(--font-accent);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.22em;
    color: var(--cyan);
    text-transform: uppercase;
}

.readout-name {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 22px;
    line-height: 1.2;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text);
    margin-bottom: 22px;
    min-height: 1.2em;
}

.readout-spec {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 18px;
    padding: 18px 0;
    border-top: 1px solid rgba(30,58,95,0.7);
    border-bottom: 1px solid rgba(30,58,95,0.7);
    margin-bottom: 22px;
}

.readout-spec > div { display: flex; flex-direction: column; gap: 2px; }

.readout-spec dt {
    font-family: var(--font-accent);
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 0.18em;
    color: var(--text-dim);
    text-transform: uppercase;
}
.readout-spec dd {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text);
}

.readout-graph {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 18px;
}
.readout-graph-row {
    display: grid;
    grid-template-columns: 70px 1fr 30px;
    align-items: center;
    gap: 10px;
}
.readout-graph-label {
    font-family: var(--font-accent);
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 0.14em;
    color: var(--text-dim);
    text-transform: uppercase;
}
.readout-graph-bar {
    position: relative;
    height: 4px;
    background: var(--bg-tertiary);
    overflow: hidden;
}
.readout-graph-fill {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    background: var(--cyan);
    box-shadow: 0 0 6px rgba(0,210,255,0.6);
    transition: width 400ms var(--ease-out);
}
.readout-graph-fill--warn { background: var(--orange); box-shadow: 0 0 6px rgba(255,107,53,0.6); }
.readout-graph-num {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text);
    text-align: right;
}

.readout-note {
    font-size: 12px;
    line-height: 1.6;
    color: var(--text-dim);
    font-style: italic;
}

/* ---------- AUDIT LEDGER ---------- */
.audit-ledger {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--grid-line);
    position: relative;
    z-index: 2;
}

.audit-row {
    display: grid;
    grid-template-columns: 90px 1fr 130px;
    gap: 24px;
    padding: 26px 0;
    border-bottom: 1px solid var(--grid-line);
    align-items: start;
    transition: background 300ms var(--ease-out), padding 300ms var(--ease-out);
    position: relative;
}

.audit-row::before {
    content: "";
    position: absolute;
    left: -12px;
    top: 32px;
    width: 8px;
    height: 1px;
    background: var(--grid-line);
    transition: background 240ms var(--ease-out), width 240ms var(--ease-out);
}

.audit-row:hover {
    background: linear-gradient(90deg, rgba(0,210,255,0.04), transparent 80%);
    padding-left: 18px;
}

.audit-row:hover::before {
    background: var(--cyan);
    width: 16px;
    box-shadow: 0 0 6px rgba(0,210,255,0.7);
}

.audit-num {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: 32px;
    line-height: 1;
    color: var(--cyan);
    letter-spacing: 0.06em;
}

.audit-body h3 {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 22px;
    line-height: 1.3;
    letter-spacing: 0.02em;
    color: var(--text);
    margin-bottom: 8px;
}
.audit-body p {
    font-size: 14px;
    color: var(--text-dim);
    max-width: 60ch;
}

.audit-state {
    justify-self: end;
    font-family: var(--font-accent);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    padding: 6px 10px;
    border: 1px solid currentColor;
}
.audit-state--ok { color: var(--green); }
.audit-state--mid { color: var(--cyan); }
.audit-state--warn { color: var(--orange); }

/* ---------- METRICS ---------- */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    position: relative;
    z-index: 2;
}

.metric-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--grid-line);
    padding: 26px 24px;
    position: relative;
    transition: transform 400ms var(--spring), box-shadow 400ms var(--ease-out);
}

.metric-panel:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 36px rgba(0,0,0,0.45), 0 0 0 1px rgba(0,210,255,0.25);
}

.metric-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 18px;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(30,58,95,0.6);
}

.metric-label {
    font-family: var(--font-accent);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.22em;
    color: var(--text-dim);
    text-transform: uppercase;
}

.metric-val {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 18px;
    color: var(--cyan);
    letter-spacing: 0.04em;
}

.metric-spark {
    width: 100%;
    height: 80px;
    margin-bottom: 14px;
}

.metric-note {
    font-size: 12px;
    color: var(--text-dim);
    line-height: 1.6;
}

.metric-donut {
    width: 110px;
    height: 110px;
    float: left;
    margin-right: 24px;
}

.metric-legend {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding-top: 6px;
    font-family: var(--font-accent);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--text);
    text-transform: uppercase;
}

.metric-legend li { display: flex; align-items: center; gap: 10px; }

.metric-bars {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.metric-bars li {
    display: grid;
    grid-template-columns: 50px 1fr 30px;
    align-items: center;
    gap: 10px;
}

.bar-label {
    font-family: var(--font-accent);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.16em;
    color: var(--text-dim);
}

.bar-track {
    height: 4px;
    background: var(--bg-tertiary);
    position: relative;
    overflow: hidden;
}
.bar-fill {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
}

.bar-num {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text);
    text-align: right;
}

.metric-ring {
    position: relative;
    width: 130px;
    height: 130px;
    float: left;
    margin-right: 22px;
}
.metric-ring svg { width: 100%; height: 100%; }
.metric-ring-num {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 32px;
    color: var(--green);
    letter-spacing: 0.04em;
}
.metric-ring-num span {
    font-size: 16px;
    color: var(--text-dim);
    margin-left: 2px;
}

/* ---------- ARCHIVE ---------- */
.archive-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    position: relative;
    z-index: 2;
}

.archive-entry {
    background: linear-gradient(180deg, rgba(19,36,56,0.7), rgba(11,22,34,0.5));
    border: 1px solid var(--grid-line);
    padding: 26px 24px;
    transition: transform 400ms var(--spring), box-shadow 400ms var(--ease-out), border-color 240ms var(--ease-out);
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 220px;
}

.archive-entry:hover {
    transform: translateY(-6px);
    border-color: rgba(0,210,255,0.45);
    box-shadow: 0 16px 32px rgba(0,0,0,0.45);
}

.archive-num {
    font-family: var(--font-accent);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.22em;
    color: var(--cyan);
    text-transform: uppercase;
}

.archive-title {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 18px;
    line-height: 1.3;
    color: var(--text);
    letter-spacing: 0.02em;
}

.archive-body {
    flex: 1;
    font-size: 13px;
    line-height: 1.7;
    color: var(--text-dim);
}

.colophon {
    margin-top: 80px;
    padding-top: 24px;
    border-top: 1px solid var(--grid-line);
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-family: var(--font-accent);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.18em;
    color: var(--text);
    text-transform: uppercase;
}

.colophon-row {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.colophon-row .dim { color: var(--text-dim); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1280px) {
    :root { --frame-inset: 48px; --sidebar-width: 180px; }
    .section-title { font-size: 40px; }
    .hero-title { font-size: 52px; }
    .caret { font-size: 52px; }
    .watermark { font-size: 160px; }
    .card-rack { grid-template-columns: repeat(2, 1fr); }
    .archive-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 960px) {
    :root { --frame-inset: 32px; --sidebar-width: 0px; }
    .sidebar { display: none; }
    .frame-tag { font-size: 9px; }
    .content {
        margin-left: calc(var(--frame-inset) + 14px);
        margin-right: calc(var(--frame-inset) + 14px);
    }
    .hero-grid { grid-template-columns: 1fr; }
    .hero-stage { min-height: 380px; }
    .explorer-shell { grid-template-columns: 1fr; }
    .metrics-grid { grid-template-columns: 1fr; }
    .archive-grid { grid-template-columns: 1fr; }
    .audit-row { grid-template-columns: 60px 1fr; }
    .audit-state { grid-column: 2; justify-self: start; margin-top: 4px; }
    .section-title { font-size: 32px; }
    .hero-title { font-size: 40px; }
    .caret { font-size: 40px; }
    .watermark { font-size: 120px; top: 20px; }
}