/* =========================================================
   John Sweeney: liquid glass résumé
   Tokens first: color, glass, depth, motion. Components only
   reference tokens, so the whole system retunes from :root.
   ========================================================= */

:root {
    color-scheme: dark;

    /* Color */
    --bg: #05070d;
    --bg-raised: #0a0f1c;
    --ink: #e9eefb;
    --ink-2: #aab5cd;
    --ink-3: #8390ab;
    --accent: #6ee7ff;
    --accent-2: #a78bfa;
    --accent-ink: #04121a;
    --ok: #34d399;
    --line: rgba(255, 255, 255, 0.1);

    /* Glass material */
    --glass-fill: linear-gradient(145deg, rgba(255, 255, 255, 0.085), rgba(255, 255, 255, 0.025));
    --glass-fill-strong: linear-gradient(145deg, rgba(22, 30, 52, 0.92), rgba(10, 14, 28, 0.88));
    --glass-border: rgba(255, 255, 255, 0.13);
    --glass-edge: rgba(255, 255, 255, 0.22);
    --glass-blur: 18px;
    --glass-sat: 160%;

    /* Shape */
    --r-s: 12px;
    --r-m: 20px;
    --r-l: 28px;
    --r-pill: 999px;

    /* Depth: elements move forward or recede by state */
    --elev-rest: 0 1px 0 rgba(255, 255, 255, 0.06) inset, 0 18px 40px -24px rgba(0, 0, 0, 0.7);
    --elev-hover: 0 1px 0 rgba(255, 255, 255, 0.1) inset, 0 28px 60px -26px rgba(0, 0, 0, 0.85), 0 0 0 1px rgba(110, 231, 255, 0.12);
    --elev-focus: 0 1px 0 rgba(255, 255, 255, 0.12) inset, 0 40px 120px -30px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(110, 231, 255, 0.2);
    --lift-hover: -3px;
    --recede-scale: 0.975;
    --recede-blur: 3px;
    --recede-opacity: 0.35;
    --grow-hover: 1.12;
    --shrink-rest: 0.96;

    /* Motion: speed, easing, duration */
    --dur-instant: 90ms;
    --dur-fast: 180ms;
    --dur-base: 320ms;
    --dur-slow: 560ms;
    --dur-ambient: 28s;
    --ease-standard: cubic-bezier(0.2, 0, 0, 1);
    --ease-emphasized: cubic-bezier(0.3, 0, 0, 1);
    --ease-exit: cubic-bezier(0.4, 0, 1, 1);
    --ease-spring: cubic-bezier(0.34, 1.36, 0.64, 1);
    --tilt-max: 3deg;

    /* Type */
    --font-display: "Space Grotesk", system-ui, sans-serif;
    --font-body: "Inter", system-ui, sans-serif;
    --font-mono: "JetBrains Mono", ui-monospace, monospace;

    --page-max: 1180px;
    --gutter: clamp(16px, 4vw, 40px);

    /* Pointer position, written by JS */
    --mx: 50vw;
    --my: 30vh;
}

@media (prefers-reduced-motion: reduce) {
    :root {
        --dur-instant: 0.01ms;
        --dur-fast: 0.01ms;
        --dur-base: 0.01ms;
        --dur-slow: 0.01ms;
        --lift-hover: 0px;
        --tilt-max: 0deg;
        --grow-hover: 1;
        --shrink-rest: 1;
    }
}

/* ---------- Base ---------- */

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 96px;
    -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font: 400 16px/1.6 var(--font-body);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

body.is-locked {
    overflow: hidden;
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin: 0;
}

p {
    margin: 0;
}

code {
    font-family: var(--font-mono);
    font-size: 0.86em;
    padding: 0.1em 0.35em;
    border-radius: 6px;
    background: rgba(110, 231, 255, 0.08);
    color: #bdf4ff;
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 6px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

.skip-link {
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 100;
    padding: 10px 16px;
    border-radius: var(--r-s);
    background: var(--accent);
    color: var(--accent-ink);
    font-weight: 600;
    text-decoration: none;
    transform: translateY(-160%);
    transition: transform var(--dur-fast) var(--ease-standard);
}

.skip-link:focus {
    transform: none;
}

/* ---------- Ambient vector field ---------- */

.ambient {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.ambient-grid {
    position: absolute;
    inset: -1px;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 20%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 20%, transparent 75%);
}

.orb {
    position: absolute;
    width: 46vmax;
    height: 46vmax;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.32;
    will-change: transform;
    animation: drift var(--dur-ambient) ease-in-out infinite alternate;
}

.orb--a {
    background: radial-gradient(circle, #1f6fff, transparent 65%);
    top: -18vmax;
    left: -10vmax;
}

.orb--b {
    background: radial-gradient(circle, #7c3aed, transparent 65%);
    top: 20vh;
    right: -18vmax;
    animation-duration: calc(var(--dur-ambient) * 1.3);
    animation-direction: alternate-reverse;
}

.orb--c {
    background: radial-gradient(circle, #06b6d4, transparent 65%);
    bottom: -24vmax;
    left: 30vw;
    opacity: 0.22;
    animation-duration: calc(var(--dur-ambient) * 1.6);
}

@keyframes drift {
    to {
        transform: translate3d(6vmax, 4vmax, 0) scale(1.08);
    }
}

.spotlight {
    position: absolute;
    inset: 0;
    background: radial-gradient(520px circle at var(--mx) var(--my), rgba(110, 231, 255, 0.07), transparent 60%);
}

@media (prefers-reduced-motion: reduce) {
    .orb {
        animation: none;
    }
}

/* ---------- Glass material ---------- */

.glass {
    position: relative;
    background: var(--glass-fill);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-m);
    box-shadow: var(--elev-rest);
    backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
}

/* Specular highlight that follows the pointer (--px/--py set per element) */
.glass::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
    background: radial-gradient(380px circle at var(--px, 50%) var(--py, 0%), rgba(255, 255, 255, 0.1), transparent 45%);
    opacity: 0;
    transition: opacity var(--dur-base) var(--ease-standard);
}

/* Edge light: a gradient border revealed near the pointer */
.glass::after {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1px;
    pointer-events: none;
    background: radial-gradient(240px circle at var(--px, 50%) var(--py, 0%), var(--accent), transparent 60%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
    opacity: 0;
    transition: opacity var(--dur-base) var(--ease-standard);
}

.glass.is-lit::before,
.glass.is-lit::after {
    opacity: 1;
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
    .glass {
        background: var(--glass-fill-strong);
    }
}

/* ---------- Buttons & links ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 18px;
    border-radius: var(--r-pill);
    border: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--ink);
    font: 500 15px/1 var(--font-body);
    text-decoration: none;
    cursor: pointer;
    transition:
        transform var(--dur-fast) var(--ease-spring),
        background-color var(--dur-fast) var(--ease-standard),
        border-color var(--dur-fast) var(--ease-standard);
}

.btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--glass-edge);
    transform: translateY(-1px);
}

.btn:active {
    transform: scale(0.97);
    transition-duration: var(--dur-instant);
}

.btn--primary {
    background: linear-gradient(135deg, var(--accent), #8ab4ff);
    border-color: transparent;
    color: var(--accent-ink);
    font-weight: 600;
}

.btn--primary:hover {
    background: linear-gradient(135deg, #9cf0ff, #a9c6ff);
    border-color: transparent;
}

.btn--icon {
    width: 44px;
    padding: 0;
    justify-content: center;
    font-size: 18px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    font-weight: 500;
    text-decoration: none;
    border-bottom: 1px solid rgba(110, 231, 255, 0.3);
    padding-bottom: 2px;
}

.text-link:hover {
    border-bottom-color: var(--accent);
}

.text-link img {
    filter: invert(1) brightness(1.4);
    opacity: 0.8;
}

/* ---------- Nav ---------- */

.nav-wrap {
    position: fixed;
    top: 14px;
    left: 0;
    right: 0;
    z-index: 30;
    display: flex;
    justify-content: center;
    padding: 0 var(--gutter);
    pointer-events: none;
    transition: opacity var(--dur-base) var(--ease-standard), filter var(--dur-base) var(--ease-standard);
}

.nav {
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px;
    border-radius: var(--r-pill);
    max-width: 100%;
}

.nav-mark {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    flex: none;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: var(--accent-ink);
    font: 700 14px/1 var(--font-display);
    text-decoration: none;
}

.nav-links {
    position: relative;
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    overflow-x: auto;
    scrollbar-width: none;
}

.nav-links::-webkit-scrollbar {
    display: none;
}

.nav-links a {
    position: relative;
    z-index: 1;
    display: block;
    padding: 10px 14px;
    border-radius: var(--r-pill);
    color: var(--ink-2);
    font: 500 14px/1.2 var(--font-body);
    text-decoration: none;
    white-space: nowrap;
    transition: color var(--dur-fast) var(--ease-standard);
}

.nav-links a:hover,
.nav-links a[aria-current="true"] {
    color: var(--ink);
}

/* The bead morphs between links to show where you are */
.nav-bead,
.filter-bead {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: var(--bead-w, 0px);
    transform: translateX(var(--bead-x, 0px));
    border-radius: var(--r-pill);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), 0 0 0 1px rgba(110, 231, 255, 0.18);
    opacity: var(--bead-o, 0);
    pointer-events: none;
    transition:
        transform var(--dur-slow) var(--ease-spring),
        width var(--dur-slow) var(--ease-spring),
        opacity var(--dur-base) var(--ease-standard);
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex: none;
    min-height: 38px;
    padding: 0 14px;
    border-radius: var(--r-pill);
    background: linear-gradient(135deg, var(--accent), #8ab4ff);
    color: var(--accent-ink);
    font: 600 14px/1 var(--font-body);
    text-decoration: none;
    transition: transform var(--dur-fast) var(--ease-spring);
}

.nav-cta:hover {
    transform: translateY(-1px);
}

.nav-cta.is-source {
    opacity: 0;
}

/* ---------- Layout ---------- */

main {
    transition:
        transform var(--dur-slow) var(--ease-emphasized),
        filter var(--dur-slow) var(--ease-emphasized),
        opacity var(--dur-slow) var(--ease-emphasized);
    transform-origin: 50% 40vh;
}

/* Depth by focus: the page recedes while a panel is open */
body.stage-open main,
body.stage-open .footer {
    transform: scale(var(--recede-scale));
    filter: blur(var(--recede-blur));
    opacity: var(--recede-opacity);
}

body.stage-open .nav-wrap {
    opacity: 0;
    pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
    body.stage-open main,
    body.stage-open .footer {
        transform: none;
    }
}

.section,
.hero {
    max-width: var(--page-max);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

.section {
    padding-top: clamp(72px, 10vw, 128px);
}

.section-head {
    max-width: 720px;
    margin-bottom: 32px;
}

.section-head h2 {
    font-size: clamp(32px, 5vw, 52px);
    margin: 8px 0 12px;
}

.section-sub {
    color: var(--ink-2);
    font-size: 17px;
    max-width: 62ch;
}

.section-foot {
    margin-top: 28px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--accent);
    font: 500 13px/1.4 var(--font-mono);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.live-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--ok);
    box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6);
    animation: pulse 2.4s var(--ease-standard) infinite;
}

@keyframes pulse {
    70% {
        box-shadow: 0 0 0 10px rgba(52, 211, 153, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(52, 211, 153, 0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .live-dot {
        animation: none;
    }
}

/* ---------- Hero ---------- */

.hero {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    align-items: center;
    gap: 24px 40px;
    padding-top: clamp(112px, 16vh, 168px);
}

.hero h1 {
    font-size: clamp(48px, 8vw, 96px);
    font-weight: 700;
    letter-spacing: -0.04em;
    margin: 16px 0 10px;
    background: linear-gradient(180deg, #fff 30%, #b9c6e4);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-role {
    font: 500 clamp(18px, 2.2vw, 22px)/1.35 var(--font-display);
    color: var(--ink);
    margin-bottom: 18px;
}

.lead {
    color: var(--ink-2);
    font-size: 17px;
    max-width: 56ch;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 28px;
}

.hero-visual {
    position: relative;
    display: grid;
    place-items: center;
    aspect-ratio: 1;
    max-width: 480px;
    width: 100%;
    justify-self: center;
}

.topology {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    overflow: visible;
}

.topology .orbit {
    fill: none;
    stroke: rgba(255, 255, 255, 0.08);
    stroke-dasharray: 2 6;
}

.topology .orbit--inner {
    stroke: rgba(167, 139, 250, 0.14);
}

.orbit-spin {
    transform-origin: 240px 240px;
    animation: spin 120s linear infinite;
}

.topology .links line {
    stroke: url(#linkGrad);
    stroke-width: 1.2;
    stroke-opacity: 0.5;
    stroke-dasharray: 3 7;
    animation: flow 2.8s linear infinite;
}

.topology .nodes circle:last-of-type {
    fill: var(--accent);
}

.topology text {
    fill: var(--ink-3);
    font: 500 11px var(--font-mono);
    text-anchor: middle;
}

.topology .nodes g text {
    animation: counter-spin 120s linear infinite;
    transform-box: fill-box;
    transform-origin: center;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes counter-spin {
    to {
        transform: rotate(-360deg);
    }
}

@keyframes flow {
    to {
        stroke-dashoffset: -20;
    }
}

@media (prefers-reduced-motion: reduce) {
    .orbit-spin,
    .topology .links line,
    .topology .nodes g text {
        animation: none;
    }
}

.portrait {
    width: 46%;
    aspect-ratio: 1;
    border-radius: 50%;
    padding: 8px;
}

.portrait img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.metrics {
    grid-column: 1 / -1;
    list-style: none;
    margin: 24px 0 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
}

.metric {
    padding: 18px 18px 16px;
    border-radius: var(--r-m);
}

.metric-value {
    display: block;
    font: 600 30px/1 var(--font-display);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.metric-label {
    display: block;
    margin-top: 8px;
    color: var(--ink-2);
    font-size: 13px;
    line-height: 1.4;
}

/* ---------- Filters ---------- */

/* The primary control for the Work section: full width, brighter edge */
.filters {
    position: relative;
    display: flex;
    justify-content: space-between;
    gap: 4px;
    width: 100%;
    padding: 8px 12px;
    border-radius: var(--r-pill);
    margin-bottom: 24px;
    border-color: rgba(110, 231, 255, 0.28);
    box-shadow:
        var(--elev-rest),
        0 0 0 1px rgba(110, 231, 255, 0.08),
        0 10px 40px -12px rgba(110, 231, 255, 0.25);
    overflow-x: auto;
    scrollbar-width: none;
}

.filters::-webkit-scrollbar {
    display: none;
}

/* Keep the edge light inside the scroll box so it can't add a stray pixel */
.filters::after {
    inset: 0;
}

.filter {
    position: relative;
    z-index: 1;
    flex: 1 0 auto;
    min-height: 46px;
    padding: 0 18px;
    border: 0;
    border-radius: var(--r-pill);
    background: none;
    color: var(--ink-2);
    font: 500 15px/1 var(--font-body);
    white-space: nowrap;
    cursor: pointer;
    transition:
        color var(--dur-fast) var(--ease-standard),
        transform var(--dur-base) var(--ease-spring);
}

.filter:hover,
.filter[aria-pressed="true"] {
    color: var(--ink);
}

/* Options swell toward the pointer */
@media (hover: hover) {
    .filter:hover {
        transform: scale(1.14);
        color: var(--accent);
    }

    .filter[aria-pressed="true"]:hover {
        color: var(--ink);
    }
}

.filter:active {
    transform: scale(0.96);
    transition-duration: var(--dur-instant);
}

.filter-bead {
    top: var(--bead-y, 8px);
    height: var(--bead-h, 46px);
    background: linear-gradient(135deg, rgba(110, 231, 255, 0.22), rgba(167, 139, 250, 0.22));
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25), 0 0 0 1px rgba(110, 231, 255, 0.35), 0 6px 20px -6px rgba(110, 231, 255, 0.45);
}

/* ---------- Project panels ---------- */

.panels {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 330px), 1fr));
    gap: 16px;
}

.panel {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 24px;
    border-radius: var(--r-l);
    transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) translateY(var(--ty, 0px)) scale(var(--s, 1));
    transition:
        transform var(--dur-base) var(--ease-standard),
        box-shadow var(--dur-base) var(--ease-standard),
        border-color var(--dur-base) var(--ease-standard),
        opacity var(--dur-base) var(--ease-standard);
}

/* The active panel comes forward: larger, lifted, above its neighbors.
   With JS, "active" is tracked in script (.is-active) so it survives the
   centering scroll; without JS it falls back to :hover. */
html:not(.js) .panel:hover,
.panel.is-active,
.panel:has(:focus-visible) {
    --ty: var(--lift-hover);
    --s: var(--grow-hover);
    z-index: 2;
    box-shadow: var(--elev-focus);
    border-color: var(--glass-edge);
}

/* Grow inward from the grid edge so edge panels stay on the page */
.panel {
    transform-origin: var(--origin, center);
}

/* …and the rest recede, so the active one stands out */
@media (hover: hover) {
    html:not(.js) .panels:has(.panel:hover) .panel:not(:hover),
    .panels.has-active .panel:not(.is-active) {
        opacity: 0.4;
        --s: var(--shrink-rest);
    }
}

.panels:has(.panel :focus-visible) .panel:not(:has(:focus-visible)) {
    opacity: 0.4;
}

.panel.is-source {
    opacity: 0;
    transition-duration: var(--dur-instant);
}

.panel[hidden] {
    display: none;
}

.panel-tags {
    color: var(--accent);
    font: 500 12px/1.4 var(--font-mono);
    letter-spacing: 0.02em;
}

.panel-title {
    font-size: 21px;
    line-height: 1.2;
}

.panel-open {
    all: unset;
    cursor: pointer;
}

/* The whole panel is the hit area */
.panel-open::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    z-index: 1;
}

.panel-open:focus-visible {
    outline: none;
}

.panel-open:focus-visible::after {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.panel-summary {
    color: var(--ink-2);
    font-size: 15px;
    flex: 1;
}

.panel-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-top: 6px;
    font-size: 13px;
    color: var(--ink-3);
}

.panel-meta::after {
    content: "Open";
    font: 500 12px/1 var(--font-mono);
    color: var(--ink-2);
    padding: 7px 12px;
    border-radius: var(--r-pill);
    border: 1px solid var(--glass-border);
    transition: color var(--dur-fast) var(--ease-standard), border-color var(--dur-fast) var(--ease-standard);
}

.panel:hover .panel-meta::after {
    color: var(--accent);
    border-color: rgba(110, 231, 255, 0.4);
}

html:not(.js) .panel-meta::after {
    content: none;
}

.lock {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.code-link {
    position: relative;
    z-index: 2; /* above the stretched open button */
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--ink-2);
    text-decoration: none;
}

.code-link:hover {
    color: var(--accent);
}

/* Detail is hidden in cards only when JS can open the stage */
.js .panels .panel-detail {
    display: none;
}

.panel-detail {
    margin-top: 12px;
}

.rule {
    display: inline-block;
    font: 500 14px/1.4 var(--font-mono);
    color: var(--accent);
    padding: 6px 12px;
    border-radius: var(--r-s);
    background: rgba(110, 231, 255, 0.08);
    border: 1px solid rgba(110, 231, 255, 0.2);
    margin-bottom: 20px;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.detail-grid h4 {
    font: 500 12px/1.2 var(--font-mono);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-3);
    margin-bottom: 10px;
}

.detail-grid ul,
.role-inner > ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 10px;
}

.detail-grid li,
.role-inner > ul > li {
    position: relative;
    padding-left: 16px;
    color: var(--ink-2);
    font-size: 15px;
    line-height: 1.55;
}

.detail-grid li::before,
.role-inner > ul > li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.62em;
    width: 6px;
    height: 6px;
    border-radius: 2px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.stack {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
    color: var(--ink-3);
    font: 400 13px/1.7 var(--font-mono);
}

.panel-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

/* ---------- Archive disclosure ---------- */

.archive {
    margin-top: 16px;
    border-radius: var(--r-l);
}

.archive[hidden] {
    display: none;
}

.archive summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 24px;
    cursor: pointer;
    list-style: none;
    font: 500 16px/1.3 var(--font-display);
}

.archive summary::-webkit-details-marker {
    display: none;
}

.archive summary i,
.role-toggle i {
    color: var(--ink-3);
    transition: transform var(--dur-base) var(--ease-spring);
}

.archive[open] summary i {
    transform: rotate(180deg);
}

.archive-body {
    padding: 0 24px 20px;
}

.archive-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.archive-list li {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 8px 16px;
    padding: 12px 0;
    border-top: 1px solid var(--line);
    color: var(--ink-2);
    font-size: 15px;
}

.archive-links {
    display: flex;
    gap: 14px;
}

.archive-links a {
    color: var(--accent);
    font: 500 13px/1 var(--font-mono);
    text-decoration: none;
}

.archive-links a:hover {
    text-decoration: underline;
}

/* ---------- Principles pipeline ---------- */

.pipeline {
    position: relative;
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 14px;
}

/* The signal line the nodes sit on, with a pulse travelling along it */
.pipeline::before {
    content: "";
    position: absolute;
    left: 4%;
    right: 4%;
    top: 50%;
    height: 1px;
    background:
        linear-gradient(90deg, transparent, var(--accent) 50%, transparent) no-repeat,
        linear-gradient(90deg, rgba(110, 231, 255, 0.15), rgba(167, 139, 250, 0.3));
    background-size: 22% 100%, 100% 100%;
    background-position: -30% 0, 0 0;
    animation: signal 3.6s var(--ease-standard) infinite;
    z-index: -1;
}

@keyframes signal {
    to {
        background-position: 130% 0, 0 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    .pipeline::before {
        animation: none;
        background-position: 50% 0, 0 0;
    }
}

.stage-node {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 20px 18px;
    border-radius: var(--r-m);
    transition: transform var(--dur-base) var(--ease-spring), box-shadow var(--dur-base) var(--ease-standard);
}

.stage-node:hover {
    transform: translateY(var(--lift-hover));
    box-shadow: var(--elev-hover);
}

.node-tech {
    font: 500 13px/1.2 var(--font-mono);
    color: var(--accent);
}

.node-verb {
    font: 600 24px/1.1 var(--font-display);
    letter-spacing: -0.02em;
}

.node-note {
    margin-top: 6px;
    color: var(--ink-3);
    font-size: 13px;
    line-height: 1.45;
}

.pull {
    margin: 20px 0 0;
    padding: 28px 32px;
    border-radius: var(--r-l);
}

.pull p {
    font: 600 clamp(22px, 3vw, 30px)/1.25 var(--font-display);
    letter-spacing: -0.02em;
}

.pull footer {
    margin-top: 12px;
    color: var(--ink-2);
    font-size: 15px;
}

.themes {
    list-style: none;
    margin: 12px 0 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.theme {
    padding: 20px;
    border-radius: var(--r-m);
    /* Same motion as the principle nodes above (Pydantic, Fusion, DynamoDB, S3, Bedrock) */
    transition: transform var(--dur-base) var(--ease-spring), box-shadow var(--dur-base) var(--ease-standard);
}

.theme:hover,
.js .theme[data-reveal].is-in:hover {
    transform: translateY(var(--lift-hover));
    box-shadow: var(--elev-hover);
}

/* After the scroll-reveal, hand transitions back to the hover motion */
.js .theme[data-reveal].is-settled {
    transition:
        transform var(--dur-base) var(--ease-spring),
        box-shadow var(--dur-base) var(--ease-standard),
        opacity var(--dur-base) var(--ease-standard);
}

.theme h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

.theme p {
    color: var(--ink-2);
    font-size: 14px;
    line-height: 1.55;
}

/* ---------- Experience ---------- */

.timeline {
    display: grid;
    gap: 12px;
}

.role {
    border-radius: var(--r-l);
    transition: box-shadow var(--dur-base) var(--ease-standard), border-color var(--dur-base) var(--ease-standard);
}

.role.is-open {
    box-shadow: var(--elev-hover);
    border-color: var(--glass-edge);
}

.role-head {
    font-size: inherit;
}

.role-toggle {
    all: unset;
    box-sizing: border-box;
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 16px;
    width: 100%;
    padding: 22px 24px;
    cursor: pointer;
    border-radius: inherit;
}

.role-toggle:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
}

.role-title {
    font: 600 19px/1.3 var(--font-display);
    letter-spacing: -0.01em;
}

.role-org {
    display: block;
    margin-top: 4px;
    font: 400 15px/1.3 var(--font-body);
    color: var(--accent);
}

.role-when {
    color: var(--ink-3);
    font: 400 13px/1 var(--font-mono);
    white-space: nowrap;
}

.role.is-open .role-toggle i {
    transform: rotate(180deg);
}

/* Height animation without measuring: grid rows 0fr → 1fr */
.role-body {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows var(--dur-slow) var(--ease-emphasized);
}

.role.is-open .role-body {
    grid-template-rows: 1fr;
}

html:not(.js) .role-body {
    grid-template-rows: 1fr;
}

.role-inner {
    overflow: hidden;
    padding: 0 24px;
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity var(--dur-base) var(--ease-standard), transform var(--dur-base) var(--ease-standard), padding var(--dur-slow) var(--ease-emphasized);
}

.role.is-open .role-inner,
html:not(.js) .role-inner {
    opacity: 1;
    transform: none;
    padding-bottom: 24px;
}

.chips-label {
    margin: 20px 0 8px;
    color: var(--ink-3);
    font: 500 12px/1.2 var(--font-mono);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.chips {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.chips li {
    padding: 6px 12px;
    border-radius: var(--r-pill);
    border: 1px solid rgba(110, 231, 255, 0.25);
    background: rgba(110, 231, 255, 0.06);
    color: var(--ink);
    font-size: 13px;
}

.chips--quiet li {
    border-color: var(--glass-border);
    background: rgba(255, 255, 255, 0.03);
    color: var(--ink-2);
}

.role-note {
    margin-top: 20px;
    color: var(--ink-2);
    font-size: 15px;
}

/* ---------- Skills ---------- */

.skill-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.skill {
    padding: 22px;
    border-radius: var(--r-m);
    transition: transform var(--dur-base) var(--ease-spring), box-shadow var(--dur-base) var(--ease-standard);
}

.skill:hover,
.js .skill[data-reveal].is-in:hover {
    transform: translateY(var(--lift-hover));
    box-shadow: var(--elev-hover);
}

/* After the scroll-reveal, hand transitions back to the hover motion */
.js .skill[data-reveal].is-settled {
    transition:
        transform var(--dur-base) var(--ease-spring),
        box-shadow var(--dur-base) var(--ease-standard),
        opacity var(--dur-base) var(--ease-standard);
}

.skill h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    margin-bottom: 10px;
}

.skill h3 i {
    width: 32px;
    height: 32px;
    display: grid;
    place-items: center;
    flex: none;
    border-radius: 10px;
    background: rgba(110, 231, 255, 0.1);
    color: var(--accent);
    font-size: 14px;
}

.skill p {
    color: var(--ink-2);
    font-size: 14px;
    line-height: 1.55;
}

.creds {
    margin-top: 12px;
    padding: 20px 24px;
    border-radius: var(--r-l);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px 24px;
}

.cred {
    display: flex;
    align-items: center;
    gap: 14px;
}

.cred i {
    font-size: 22px;
    color: var(--accent);
    width: 28px;
    text-align: center;
}

.cred strong {
    display: block;
    font-weight: 600;
    font-size: 15px;
}

.cred span {
    color: var(--ink-3);
    font-size: 14px;
}

/* ---------- Contact ---------- */

.contact {
    padding: clamp(28px, 5vw, 56px);
    border-radius: var(--r-l);
    text-align: center;
    display: grid;
    justify-items: center;
    gap: 14px;
}

.contact h2 {
    font-size: clamp(30px, 5vw, 48px);
}

.contact .section-sub {
    margin: 0 auto;
}

.contact-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 10px;
}

.copy-email.is-done {
    border-color: rgba(52, 211, 153, 0.6);
    color: var(--ok);
}

.footer {
    max-width: var(--page-max);
    margin: 0 auto;
    padding: 48px var(--gutter) 40px;
    text-align: center;
    color: var(--ink-3);
    transition: filter var(--dur-slow) var(--ease-emphasized), opacity var(--dur-slow) var(--ease-emphasized), transform var(--dur-slow) var(--ease-emphasized);
}

/* ---------- Focus stage (opened panel) ---------- */

.stage {
    position: fixed;
    inset: 0;
    z-index: 50;
    display: grid;
    place-items: center;
    padding: 24px var(--gutter);
}

.stage[hidden] {
    display: none;
}

.stage-scrim {
    position: absolute;
    inset: 0;
    background: rgba(3, 5, 12, 0.55);
    opacity: 0;
    transition: opacity var(--dur-slow) var(--ease-emphasized);
}

.stage.is-in .stage-scrim {
    opacity: 1;
}

.stage-panel {
    position: relative;
    width: min(920px, 100%);
    max-height: calc(100dvh - 48px);
    overflow: auto;
    overscroll-behavior: contain;
    padding: clamp(24px, 4vw, 40px);
    border-radius: var(--r-l);
    background: var(--glass-fill-strong);
    box-shadow: var(--elev-focus);
    transform-origin: top left;
    will-change: transform;
}

.stage-panel:focus {
    outline: none;
}

.stage-content {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity var(--dur-base) var(--ease-standard), transform var(--dur-base) var(--ease-standard);
}

.stage.is-in .stage-content {
    opacity: 1;
    transform: none;
    transition-delay: calc(var(--dur-slow) * 0.45);
}

.stage-content .panel-tags {
    margin-bottom: 10px;
}

.stage-content .panel-title {
    font-size: clamp(26px, 3.6vw, 36px);
    padding-right: 48px;
    margin-bottom: 12px;
}

.stage-content .panel-summary {
    font-size: 17px;
    max-width: 64ch;
    margin-bottom: 20px;
}

.stage-content .panel-meta {
    margin-bottom: 20px;
}

.stage-content .panel-meta::after {
    content: none;
}

.stage-close {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 2;
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    border: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.06);
    color: var(--ink);
    font-size: 16px;
    cursor: pointer;
    transition: transform var(--dur-fast) var(--ease-spring), background-color var(--dur-fast) var(--ease-standard);
}

.stage-close:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: rotate(90deg);
}

/* Document variant: the résumé viewer fills the stage */
.stage-panel--doc {
    width: min(1040px, 100%);
    height: calc(100dvh - 48px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.stage-panel--doc .stage-content {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.doc-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px 24px;
    padding-right: 52px;
}

.doc-head .panel-title {
    font-size: clamp(24px, 3vw, 32px);
    margin: 6px 0 6px;
}

.doc-head .panel-links {
    margin-top: 0;
}

.doc-sub {
    color: var(--ink-2);
    font-size: 15px;
}

.doc-frame {
    flex: 1;
    width: 100%;
    min-height: 0;
    border: 1px solid var(--glass-border);
    border-radius: var(--r-m);
    background: #fff;
}

.doc-fallback {
    color: var(--ink-2);
    font-size: 15px;
}

.btn.is-source {
    opacity: 0;
}

/* ---------- Reveal on scroll ---------- */

.js [data-reveal] {
    opacity: 0;
    transform: translateY(18px);
    transition:
        opacity var(--dur-slow) var(--ease-standard),
        transform var(--dur-slow) var(--ease-emphasized);
    transition-delay: var(--reveal-delay, 0ms);
}

.js [data-reveal].is-in {
    opacity: 1;
    transform: none;
}

/* Panels keep their own transform for tilt, so reveal only fades them */
.js .panel[data-reveal] {
    transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) translateY(calc(var(--ty, 0px) + 18px)) scale(var(--s, 1));
}

.js .panel[data-reveal].is-in {
    transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) translateY(var(--ty, 0px)) scale(var(--s, 1));
}

/* Once settled, panels get their interactive transitions back */
.js [data-reveal].is-settled {
    transition-delay: 0ms;
}

.js .panel[data-reveal].is-settled {
    transition:
        transform var(--dur-base) var(--ease-standard),
        box-shadow var(--dur-base) var(--ease-standard),
        border-color var(--dur-base) var(--ease-standard),
        opacity var(--dur-base) var(--ease-standard);
}

.js .panel[data-reveal].is-in.is-source {
    opacity: 0;
}

@media (prefers-reduced-motion: reduce) {
    .js [data-reveal],
    .js .panel[data-reveal] {
        transform: none;
    }
}

/* ---------- Responsive ---------- */

@media (max-width: 1024px) {
    .metrics {
        grid-template-columns: repeat(3, 1fr);
    }

    .skill-grid,
    .themes {
        grid-template-columns: repeat(2, 1fr);
    }

    .pipeline {
        grid-template-columns: repeat(5, minmax(0, 1fr));
    }

    .node-note {
        display: none;
    }
}

@media (max-width: 820px) {
    .hero {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        grid-row: 1;
        max-width: 340px;
    }

    .detail-grid {
        grid-template-columns: 1fr;
    }

    .creds {
        grid-template-columns: 1fr;
    }

    .pipeline {
        grid-template-columns: 1fr;
    }

    .pipeline::before {
        left: 28px;
        right: auto;
        top: 4%;
        bottom: 4%;
        width: 1px;
        height: auto;
        background: linear-gradient(180deg, rgba(110, 231, 255, 0.2), rgba(167, 139, 250, 0.35));
        animation: none;
    }

    .stage-node {
        flex-direction: row;
        flex-wrap: wrap;
        align-items: baseline;
        gap: 4px 12px;
    }

    .node-note {
        display: block;
        flex-basis: 100%;
        margin-top: 0;
    }
}

@media (max-width: 560px) {
    /* Single column: a full-width card has no room to grow sideways */
    :root {
        --grow-hover: 1.02;
    }

    .metrics {
        grid-template-columns: repeat(2, 1fr);
    }

    .metric:last-child {
        grid-column: 1 / -1;
    }

    .skill-grid,
    .themes {
        grid-template-columns: 1fr;
    }

    .nav-mark {
        display: none;
    }

    .nav-links a {
        padding: 10px 11px;
        font-size: 13px;
    }

    .role-toggle {
        grid-template-columns: 1fr auto;
        padding: 18px;
    }

    .role-when {
        grid-column: 1;
        grid-row: 2;
    }

    .role-toggle i {
        grid-column: 2;
        grid-row: 1 / span 2;
    }

    .role-inner {
        padding-left: 18px;
        padding-right: 18px;
    }

    .panel {
        padding: 20px;
    }

    .stage {
        padding: 12px;
    }

    .stage-panel {
        max-height: calc(100dvh - 24px);
    }

    .stage-panel--doc {
        height: auto;
    }

    .nav-cta {
        padding: 0 12px;
        font-size: 13px;
    }
}

/* ---------- Architecture page ---------- */

.arch-hero {
    padding-top: clamp(112px, 14vh, 150px);
}

.arch-hero h1 {
    font-size: clamp(40px, 6vw, 64px);
    margin: 8px 0 12px;
}

.diagram-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 520px), 1fr));
    gap: 16px;
}

.diagram-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 22px;
    border-radius: var(--r-l);
    transition:
        transform var(--dur-base) var(--ease-standard),
        box-shadow var(--dur-base) var(--ease-standard),
        border-color var(--dur-base) var(--ease-standard),
        opacity var(--dur-base) var(--ease-standard);
}

.diagram-card:hover,
.js .diagram-card[data-reveal].is-in:hover {
    transform: translateY(var(--lift-hover));
    box-shadow: var(--elev-hover);
    border-color: var(--glass-edge);
}

/* After the scroll-reveal, hand transitions back to the hover motion */
.js .diagram-card[data-reveal].is-settled {
    transition:
        transform var(--dur-base) var(--ease-standard),
        box-shadow var(--dur-base) var(--ease-standard),
        border-color var(--dur-base) var(--ease-standard),
        opacity var(--dur-base) var(--ease-standard);
}

.diagram-card[hidden] {
    display: none;
}

.diagram-card.is-source {
    opacity: 0;
}

.diagram-title {
    font-size: 19px;
}

.diagram-preview {
    position: relative;
    display: grid;
    place-items: center;
    height: 280px;
    padding: 14px;
    overflow: hidden;
    border-radius: var(--r-m);
    border: 1px solid var(--line);
    background: rgba(3, 6, 14, 0.45);
    cursor: zoom-in;
}

.diagram-preview svg {
    max-width: 100% !important;
    max-height: 100%;
    height: auto;
}

.diagram-preview .diagram-img {
    max-height: 100%;
    width: auto;
    object-fit: contain;
    border-radius: 8px;
    background: #fff;
}

.diagram-status {
    color: var(--ink-3);
    font: 400 13px/1.4 var(--font-mono);
}

.diagram-caption {
    flex: 1;
    color: var(--ink-2);
    font-size: 14px;
}

.diagram-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 4px;
}

.stage-panel--diagram {
    width: min(1280px, 100%);
}

.diagram-toolbar {
    display: flex;
    gap: 8px;
}

.zoom-level {
    min-width: 72px;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 13px;
}

.diagram-canvas {
    flex: 1;
    min-height: 0;
    overflow: auto;
    border-radius: var(--r-m);
    border: 1px solid var(--line);
    background: rgba(3, 6, 14, 0.55);
    cursor: grab;
    touch-action: pan-x pan-y;
}

.diagram-canvas.is-dragging {
    cursor: grabbing;
    user-select: none;
}

.zoom-layer {
    width: 100%;
    padding: 24px;
    margin: 0 auto;
}

.zoom-layer svg {
    display: block;
    width: 100%;
    height: auto;
    max-width: none !important;
}

.diagram-canvas.is-image .zoom-layer img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    background: #fff;
}

@media (max-width: 560px) {
    .diagram-preview {
        height: 220px;
    }

    .stage-panel--diagram {
        height: calc(100dvh - 24px);
    }
}

.foot-sep {
    margin: 0 12px;
    color: var(--ink-3);
}

/* ---------- Magnifier under the diagram thumbnail ---------- */

.diagram-card:hover {
    z-index: 3; /* the preview box may overlap the card below */
}

.diagram-loupe {
    position: absolute;
    left: 22px;
    right: 22px;
    top: var(--loupe-top, 320px);
    z-index: 4;
    height: 300px;
    overflow: hidden;
    border-radius: var(--r-m);
    border: 1px solid rgba(110, 231, 255, 0.45);
    background: #070c18;
    box-shadow: var(--elev-focus), 0 0 0 4px rgba(110, 231, 255, 0.06);
    opacity: 0;
    transform: translateY(-8px) scale(0.98);
    transform-origin: 50% 0;
    pointer-events: none;
    transition:
        opacity var(--dur-base) var(--ease-standard),
        transform var(--dur-base) var(--ease-emphasized);
}

.diagram-card.is-magnifying .diagram-loupe {
    opacity: 1;
    transform: none;
}

.loupe-inner {
    position: absolute;
    top: 0;
    left: 0;
    padding: 0;
    will-change: transform;
}

.loupe-inner svg,
.loupe-inner img {
    display: block;
    width: 100%;
    height: auto;
    max-width: none !important;
}

.loupe-inner img {
    background: #fff;
}

.loupe-badge {
    position: absolute;
    right: 10px;
    bottom: 10px;
    padding: 4px 8px;
    border-radius: var(--r-pill);
    background: rgba(5, 7, 13, 0.8);
    border: 1px solid var(--glass-border);
    color: var(--accent);
    font: 500 12px/1 var(--font-mono);
}

.loupe-lens {
    position: absolute;
    border: 1.5px solid var(--accent);
    border-radius: 6px;
    background: rgba(110, 231, 255, 0.08);
    box-shadow: 0 0 0 9999px rgba(3, 6, 14, 0.35);
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--dur-fast) var(--ease-standard);
}

.diagram-card.is-magnifying .loupe-lens {
    opacity: 1;
}

.diagram-card.is-magnifying .diagram-preview {
    cursor: crosshair;
}

@media (hover: none), (pointer: coarse) {
    .diagram-loupe,
    .loupe-lens {
        display: none;
    }
}

/* ---------- Work footer: links that swell, and a teaser of the Architecture page ---------- */

.foot-links {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 14px 16px;
}

.foot-links .foot-sep {
    margin: 0;
    line-height: 26px;
}

.foot-item {
    display: grid;
    gap: 14px;
    justify-items: start;
    /* Fixed column: otherwise the teaser image's intrinsic 1100px width
       inflates this item and pushes the GitHub link onto the next row */
    width: min(480px, 100%);
}

.grow-link {
    font-size: 16px;
    transform-origin: left center;
    transition:
        transform var(--dur-base) var(--ease-spring),
        color var(--dur-fast) var(--ease-standard),
        border-color var(--dur-fast) var(--ease-standard);
}

.grow-link:hover,
.grow-link:focus-visible {
    transform: scale(1.18);
    color: #9cf0ff;
}

.arch-teaser {
    display: block;
    width: 100%;
    padding: 6px;
    border-radius: var(--r-m);
    text-decoration: none;
    transform-origin: left top;
    transition:
        transform var(--dur-base) var(--ease-spring),
        box-shadow var(--dur-base) var(--ease-standard),
        border-color var(--dur-base) var(--ease-standard);
}

.arch-teaser-media {
    display: block;
    overflow: hidden;
    border-radius: 14px;
}

.arch-teaser-media img {
    display: block;
    width: 100%;
    height: auto;
    transition: transform var(--dur-slow) var(--ease-emphasized);
}

.arch-teaser-cap {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 9px 8px 3px;
    color: var(--ink-2);
    font: 500 12px/1.2 var(--font-mono);
}

.arch-teaser-cta {
    color: var(--accent);
}

.arch-teaser-cta i {
    margin-left: 4px;
    transition: transform var(--dur-base) var(--ease-spring);
}

/* The teaser responds to its own hover and to hovering the link above it */
.arch-teaser:hover,
.foot-item:has(.grow-link:hover) .arch-teaser {
    transform: translateY(-3px) scale(1.04);
    box-shadow: var(--elev-hover);
    border-color: var(--glass-edge);
}

.arch-teaser:hover .arch-teaser-media img,
.foot-item:has(.grow-link:hover) .arch-teaser-media img {
    transform: scale(1.08);
}

.arch-teaser:hover .arch-teaser-cta i,
.foot-item:has(.grow-link:hover) .arch-teaser-cta i {
    transform: translateX(4px);
}

@media (max-width: 560px) {
    .foot-links .foot-sep {
        display: none;
    }
}

/* Cover art: a thematic image stands in for the thumbnail; the real diagram
   (hidden) still feeds the magnifier and the viewer */
.diagram-preview:has(.diagram-cover) {
    padding: 0;
}

.diagram-cover {
    /* Pinned to the thumbnail box; a percentage height alone doesn't hold in the grid */
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 50% 80%;
    border-radius: inherit;
    transition: transform var(--dur-slow) var(--ease-emphasized), filter var(--dur-base) var(--ease-standard);
}

.diagram-card:hover .diagram-cover {
    transform: scale(1.03);
}

.diagram-card.is-magnifying .diagram-cover {
    filter: brightness(0.75);
}

/* ---------- AWS certification: hero chip and Skills badge ---------- */

.cert-chip {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 18px;
    padding: 6px 14px 6px 6px;
    border-radius: var(--r-pill);
    border: 1px solid rgba(110, 231, 255, 0.28);
    background: rgba(40, 60, 200, 0.14);
    color: var(--ink);
    font: 500 14px/1.2 var(--font-body);
    text-decoration: none;
    transform-origin: left center;
    transition:
        transform var(--dur-base) var(--ease-spring),
        border-color var(--dur-fast) var(--ease-standard),
        background-color var(--dur-fast) var(--ease-standard);
}

.cert-chip img {
    width: 26px;
    height: 26px;
    flex: none;
}

.cert-chip .fa-check-circle {
    color: var(--ok);
}

.cert-chip:hover,
.cert-chip:focus-visible {
    transform: scale(1.06);
    border-color: rgba(110, 231, 255, 0.55);
    background: rgba(40, 60, 200, 0.24);
}

.cred--badge {
    align-items: center;
}

.cred-badge {
    flex: none;
    display: block;
    transition: transform var(--dur-base) var(--ease-spring), filter var(--dur-base) var(--ease-standard);
}

.cred-badge img {
    display: block;
    width: 76px;
    height: 76px;
}

.cred--badge:hover .cred-badge {
    transform: scale(1.1) rotate(-4deg);
    filter: drop-shadow(0 8px 20px rgba(59, 91, 255, 0.45));
}

.cred-verify {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
    color: var(--accent);
    font: 500 13px/1.3 var(--font-mono);
    text-decoration: none;
}

.cred-verify:hover {
    text-decoration: underline;
}

.cred-verify i {
    font-size: 11px;
}

@media (max-width: 560px) {
    .cert-chip span:not(.sr-only) {
        font-size: 13px;
    }
}

/* ---------- Sound toggle ---------- */

.sound-toggle {
    flex: none;
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent);
    font-size: 14px;
    cursor: pointer;
    transition:
        transform var(--dur-fast) var(--ease-spring),
        background-color var(--dur-fast) var(--ease-standard),
        color var(--dur-fast) var(--ease-standard);
}

.sound-toggle:hover {
    transform: scale(1.1);
    background: rgba(255, 255, 255, 0.1);
}

.sound-toggle[aria-pressed="false"] {
    color: var(--ink-3);
}

.footer .credits {
    margin-top: 6px;
    font-size: 12px;
    opacity: 0.8;
}

/* Sound is on but the browser is holding audio until the first click */
.sound-toggle.is-waiting {
    border-color: rgba(110, 231, 255, 0.6);
    animation: sound-wait 1.8s var(--ease-standard) infinite;
}

@keyframes sound-wait {
    0% { box-shadow: 0 0 0 0 rgba(110, 231, 255, 0.55); }
    70% { box-shadow: 0 0 0 10px rgba(110, 231, 255, 0); }
    100% { box-shadow: 0 0 0 0 rgba(110, 231, 255, 0); }
}

@media (prefers-reduced-motion: reduce) {
    .sound-toggle.is-waiting {
        animation: none;
        box-shadow: 0 0 0 2px rgba(110, 231, 255, 0.45);
    }
}

.footer .credits a {
    color: var(--ink-2);
}

.footer .credits a:hover {
    color: var(--accent);
}