/* Hand-written site styles. Tailwind utilities are compiled separately to wwwroot/tailwind.css
   and linked after this file - see Components/App.razor. */

/* ── Race-condition glitch on "Unsafe" ─────────────── */
/* JS-driven for true randomness - see glitch-text.js  */
.glitch-text {
    position: relative;
    display: inline-block;
}

.glitch-text::before,
.glitch-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    opacity: 0;
}

.glitch-text::before {
    color: #ff6b6b;
    transform: translate(var(--g-before-tx, 0), var(--g-before-ty, 0));
    clip-path: var(--g-before-clip, inset(0 0 60% 0));
    opacity: var(--g-before-o, 0);
}

.glitch-text::after {
    color: #6ea8e0;
    transform: translate(var(--g-after-tx, 0), var(--g-after-ty, 0));
    clip-path: var(--g-after-clip, inset(60% 0 0 0));
    opacity: var(--g-after-o, 0);
}

html {
    scroll-behavior: smooth;
}

/* Smooth transitions for NavLink active states */
a.active {
    color: white !important;
}

/* Hero headline border treatment */
.hero-headline {
    border: 1px solid rgba(96, 165, 250, 0.2);
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    background: rgba(96, 165, 250, 0.03);
    display: inline-block;
}

/* Pixel field canvas - viewport-fixed with mesh lines */
.pixel-field-canvas {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -5;
}

/* Pixel squares - viewport-fixed cross breeze (legacy CSS version) */
.pixel-field {
    position: fixed;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: -5;
}

.pixel-field .px-square {
    position: absolute;
    border-radius: 2px;
    opacity: 0;
}

@keyframes drift {
    0%   { opacity: 0; transform: translate(0, 0) scale(0.5); }
    8%   { opacity: var(--peak, 0.7); }
    70%  { opacity: calc(var(--peak, 0.7) * 0.6); }
    100% { opacity: 0; transform: translate(var(--dx), var(--dy)) scale(1); }
}

.pixel-field .px-left  { animation: drift var(--duration) var(--delay) ease-out infinite; }
.pixel-field .px-right { animation: drift var(--duration) var(--delay) ease-out infinite; }

/* Milestone card breathing glow effects */
@keyframes breathe-blue {
    0%, 100% { box-shadow: 0 0 8px rgba(96, 165, 250, 0.15), inset 0 0 8px rgba(96, 165, 250, 0.03); border-color: rgba(96, 165, 250, 0.2); }
    50% { box-shadow: 0 0 20px rgba(96, 165, 250, 0.3), inset 0 0 12px rgba(96, 165, 250, 0.06); border-color: rgba(96, 165, 250, 0.4); }
}

@keyframes breathe-yellow {
    0%, 100% { box-shadow: 0 0 8px rgba(234, 179, 8, 0.15), inset 0 0 8px rgba(234, 179, 8, 0.03); border-color: rgba(234, 179, 8, 0.2); }
    50% { box-shadow: 0 0 20px rgba(234, 179, 8, 0.3), inset 0 0 12px rgba(234, 179, 8, 0.06); border-color: rgba(234, 179, 8, 0.4); }
}

.milestone-complete {
    animation: breathe-blue 4s ease-in-out infinite;
    border: 1px solid rgba(96, 165, 250, 0.2);
}

.milestone-active {
    animation: breathe-yellow 3s ease-in-out infinite;
    border: 1px solid rgba(234, 179, 8, 0.2);
}

/* ── Citation target highlight ──────────────────────────── */
/* JS adds .cite-active when a [N] link scrolls to #ref-N */
[id^="ref-"].cite-active > a {
    transition: none !important;
    animation: cite-pulse 1s ease-in-out 3, cite-fade 1s ease-out 3s forwards !important;
    border-radius: 6px;
}

@keyframes cite-pulse {
    0%, 100% { background: rgba(234, 179, 8, 0.06); box-shadow: 0 0 8px rgba(234, 179, 8, 0.15); }
    50%      { background: rgba(234, 179, 8, 0.20); box-shadow: 0 0 24px rgba(234, 179, 8, 0.5), inset 0 0 10px rgba(234, 179, 8, 0.06); }
}

@keyframes cite-fade {
    0%   { background: rgba(234, 179, 8, 0.06); box-shadow: 0 0 8px rgba(234, 179, 8, 0.15); }
    100% { background: transparent; box-shadow: none; }
}

/* Collapsible milestone details */
.milestone-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, opacity 0.3s ease-out;
    opacity: 0;
}

.milestone-details.open {
    max-height: 2000px;
    opacity: 1;
    transition: max-height 0.6s ease-in, opacity 0.3s ease-in;
}

.milestone-toggle {
    cursor: pointer;
    user-select: none;
}

.milestone-toggle .chevron {
    transition: transform 0.3s ease;
    display: inline-block;
}

.milestone-toggle .chevron.rotated {
    transform: rotate(90deg);
}

/* Generic details [ + ] / [ - ] toggle indicators */
details[open] .tc-closed,
details[open] .sources-closed,
details[open] .energy-closed,
details[open] .assumptions-closed { display: none; }
details:not([open]) .tc-open,
details:not([open]) .sources-open,
details:not([open]) .energy-open,
details:not([open]) .assumptions-open { display: none; }

/* Pipeline canvas animation */
.pipeline-canvas-section {
    width: 100%;
    height: 320px;
    position: relative;
    overflow: visible;
    z-index: 0;
    margin-top: -80px;
    margin-bottom: -80px;
    pointer-events: none;
}
@media (max-width: 768px) {
    .pipeline-canvas-section {
        height: 160px;
        margin-top: -40px;
        margin-bottom: -40px;
    }
}
.pipeline-canvas-section canvas {
    display: block;
    width: 100%;
    height: calc(100% + 160px);
    position: relative;
    top: -80px;
}
@media (max-width: 768px) {
    .pipeline-canvas-section canvas {
        height: calc(100% + 80px);
        top: -40px;
    }
}

/* Milestone 0 comparison animation (vertical: traditional top, continuum bottom) */
.m0-canvas-section {
    width: 100%;
    height: 620px;
    position: relative;
    overflow: hidden;
    border-top: 1px solid rgba(34, 34, 34, 0.2);
    border-bottom: 1px solid rgba(34, 34, 34, 0.2);
}
@media (max-width: 768px) {
    .m0-canvas-section {
        height: 520px;
    }
}
.m0-canvas-section canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* Temporal durability dual-canvas (fragile + durable) */
.td-canvas-section {
    width: 100%;
    height: 460px;
    position: relative;
    overflow: hidden;
    border-top: 1px solid rgba(34, 34, 34, 0.2);
    border-bottom: 1px solid rgba(34, 34, 34, 0.2);
}
@media (max-width: 768px) {
    .td-canvas-section {
        height: 340px;
    }
}
.td-canvas-section canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* Code blocks - Shiki output + no-JS fallback */
pre.code-block,
pre:has(> code[class*="language-"]) {
    background: rgba(26, 26, 26, 0.5);
    border: 1px solid rgba(34, 34, 34, 0.3);
    border-radius: 0.5rem;
    padding: 1rem 1.25rem;
    font-size: 0.875rem;
    line-height: 1.7;
    overflow-x: auto;
    margin: 0;
}

pre.code-block {
    background: rgba(26, 26, 26, 0.5) !important;
}

pre.code-block code,
pre > code[class*="language-"] {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

pre.code-block .line:last-child:empty {
    display: none;
}

/* Dark scrollbar for code blocks */
pre.code-block,
pre:has(> code[class*="language-"]) {
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.12) transparent;
}

pre.code-block::-webkit-scrollbar,
pre:has(> code[class*="language-"])::-webkit-scrollbar {
    height: 6px;
    width: 6px;
}

pre.code-block::-webkit-scrollbar-track,
pre:has(> code[class*="language-"])::-webkit-scrollbar-track {
    background: transparent;
}

pre.code-block::-webkit-scrollbar-thumb,
pre:has(> code[class*="language-"])::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 3px;
}

pre.code-block::-webkit-scrollbar-thumb:hover,
pre:has(> code[class*="language-"])::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* Copy button */
.muthr-copy {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.2rem 0.5rem;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.05em;
    color: rgba(160, 160, 160, 0.4);
    background: rgba(17, 17, 17, 0.7);
    border: 1px solid rgba(51, 51, 51, 0.3);
    border-radius: 0.25rem;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s, background 0.15s, opacity 0.15s;
    backdrop-filter: blur(4px);
    text-transform: uppercase;
    opacity: 0;
}

.muthr-code:hover .muthr-copy,
.muthr-copy:focus-visible {
    opacity: 1;
}

.muthr-copy:hover {
    color: rgba(200, 200, 200, 0.8);
    border-color: rgba(80, 80, 80, 0.5);
    background: rgba(25, 25, 25, 0.9);
}

.muthr-copy.muthr-copied {
    color: #33ff33;
    border-color: rgba(51, 255, 51, 0.3);
    opacity: 1;
}

/* ═══════════════════════════════════════════════════ */
/* MU-TH-UR TERMINAL CODE SWITCHER                     */
/* ═══════════════════════════════════════════════════ */

.muthr-code {
    position: relative;
}

.muthr-toggle {
    position: absolute;
    bottom: 0.5rem;
    right: 0.5rem;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.625rem;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    color: rgba(160, 160, 160, 0.6);
    background: rgba(17, 17, 17, 0.8);
    border: 1px solid rgba(51, 51, 51, 0.4);
    border-radius: 0.25rem;
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s, background 0.2s;
    backdrop-filter: blur(4px);
    text-transform: uppercase;
}

.muthr-toggle:hover {
    color: #33ff33;
    border-color: rgba(51, 255, 51, 0.4);
    background: rgba(10, 20, 10, 0.9);
}

.muthr-toggle[disabled] {
    pointer-events: none;
    opacity: 0.3;
}

.muthr-toggle-icon {
    font-size: 0.65rem;
    opacity: 0.5;
}

/* Terminal mode - active during animation */
.muthr-code.muthr-animating pre {
    position: relative !important;
    overflow: hidden !important;
    border-color: rgba(51, 255, 51, 0.25) !important;
    background: rgba(5, 15, 5, 0.95) !important;
    box-shadow: 0 0 30px rgba(51, 255, 51, 0.05), inset 0 0 60px rgba(0, 0, 0, 0.3);
    transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
}

/* CRT scanlines */
.muthr-code.muthr-animating pre::before {
    content: '' !important;
    position: absolute !important;
    inset: 0;
    pointer-events: none;
    z-index: 5;
    background: repeating-linear-gradient(
        0deg,
        transparent 0px,
        transparent 2px,
        rgba(0, 0, 0, 0.25) 2px,
        rgba(0, 0, 0, 0.25) 4px
    ) !important;
    border-radius: inherit;
}

/* CRT vignette + flicker */
.muthr-code.muthr-animating pre::after {
    content: '' !important;
    position: absolute !important;
    inset: 0;
    pointer-events: none;
    z-index: 6;
    border-radius: inherit;
    background: radial-gradient(ellipse at center, transparent 50%, rgba(0, 0, 0, 0.5) 100%) !important;
    animation: muthr-flicker 3s ease-in-out infinite;
}

@keyframes muthr-flicker {
    0%, 100% { opacity: 0.85; }
    48% { opacity: 1; }
    50% { opacity: 0.7; }
    52% { opacity: 1; }
    90% { opacity: 0.9; }
    92% { opacity: 0.75; }
    93% { opacity: 1; }
}

.muthr-terminal-overlay {
    position: relative;
    z-index: 2;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.875rem;
    line-height: 1.7;
    color: #33ff33;
    white-space: pre;
    overflow-x: auto;
    text-shadow: 0 0 4px rgba(51, 255, 51, 0.3);
}

/* Skip button state during animation */
.muthr-toggle.muthr-skip {
    pointer-events: auto !important;
    opacity: 1 !important;
    color: rgba(51, 255, 51, 0.5);
    border-color: rgba(51, 255, 51, 0.2);
    cursor: pointer;
}

.muthr-toggle.muthr-skip:hover {
    color: #33ff33;
    border-color: rgba(51, 255, 51, 0.5);
}

.muthr-cursor {
    display: inline;
    color: #33ff33;
    text-shadow: 0 0 6px rgba(51, 255, 51, 0.5);
    animation: muthr-blink 530ms step-end infinite;
}

@keyframes muthr-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* ═══════════════════════════════════════════════════ */
/* HOLOGRAPHIC NAV                                     */
/* ═══════════════════════════════════════════════════ */

/* Focal point button */
.holo-focal {
    position: relative;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 51;
}

.holo-focal__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #6ea8e0;
    position: relative;
    z-index: 2;
    transition: background 0.3s ease;
}

.holo-focal__ring {
    position: absolute;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 1.5px solid rgba(110, 168, 224, 0.4);
    animation: focal-pulse 3s ease-in-out infinite;
    transition: border-color 0.3s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

@keyframes focal-pulse {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.3); opacity: 0.2; }
}

/* Flare state - JS toggles this when bridge pulse arrives */
.holo-focal__ring--flare {
    transform: scale(1.6) !important;
    opacity: 0.9 !important;
    border-color: rgba(110, 168, 224, 0.8) !important;
    box-shadow: 0 0 12px rgba(110, 168, 224, 0.5);
    animation: none !important;
}

.holo-focal--active .holo-focal__dot {
    background: #e8a040;
}

.holo-focal--active .holo-focal__ring {
    border-color: rgba(232, 160, 64, 0.5);
}

/* Backdrop - dims page behind nav panel */
.holo-backdrop {
    position: fixed;
    inset: 0;
    z-index: 40;
    display: none;
    background: rgba(2, 4, 10, 0);
    transition: background 0.25s ease;
}

.holo-backdrop--visible {
    display: block;
    background: rgba(2, 4, 10, 0.7);
}

/* Floating panel */
.holo-panel {
    position: fixed;
    /* top/left set dynamically by JS to track focal button */
    border-radius: 16px;
    background: rgba(8, 12, 22, 0.92);
    border: 1px solid rgba(110, 168, 224, 0.15);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5), 0 0 1px rgba(110, 168, 224, 0.2);
    background-image: radial-gradient(rgba(110, 168, 224, 0.04) 1px, transparent 1px);
    background-size: 20px 20px;
    overflow: visible;
    transform: scale(0.95) translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s cubic-bezier(0.34, 1.2, 0.64, 1), opacity 0.2s ease, visibility 0.2s ease,
                width 0.2s ease, height 0.2s ease;
    transform-origin: top left;
    z-index: 41;
}

.holo-panel--visible {
    transform: scale(1) translateY(0);
    opacity: 1;
    visibility: visible;
}

/* Bridge line: JS-positioned element connecting focal dot to panel top */
/* Bridge: matches SVG .holo-line--bridge style (dashed, 1.5px, subtle) */
.holo-bridge {
    position: fixed;
    width: 0;
    border-left: 1.5px dashed rgba(110, 168, 224, 0.35);
    z-index: 52;
    transform-origin: top center;
    opacity: 0;
    transform: scaleY(0);
    transition: opacity 0.25s ease, transform 0.3s cubic-bezier(0.34, 1.2, 0.64, 1);
    pointer-events: none;
}

.holo-bridge--visible {
    opacity: 1;
    transform: scaleY(1);
    animation: holo-bridge-pulse 2.5s ease-in-out 0.5s infinite;
}

@keyframes holo-bridge-pulse {
    0%, 100% {
        border-left-color: rgba(110, 168, 224, 0.35);
    }
    50% {
        border-left-color: rgba(110, 168, 224, 0.6);
    }
}

/* Junction node - sits on the panel border where bridge meets panel */
.holo-bridge__junction {
    position: absolute;
    bottom: -4px;
    left: -4px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(8, 12, 22, 0.95);
    border: 1.5px solid rgba(110, 168, 224, 0.5);
    opacity: 0;
    transition: opacity 0.3s ease 0.2s;
}

.holo-bridge--visible .holo-bridge__junction {
    opacity: 1;
    animation: holo-junction-glow 2.5s ease-in-out 0.5s infinite;
}

@keyframes holo-junction-glow {
    0%, 100% {
        border-color: rgba(110, 168, 224, 0.5);
        box-shadow: 0 0 4px rgba(110, 168, 224, 0.2);
    }
    50% {
        border-color: rgba(110, 168, 224, 0.8);
        box-shadow: 0 0 8px rgba(110, 168, 224, 0.5);
    }
}

/* Traveling pulse dot along the bridge - matches SVG .holo-packet style */
.holo-bridge__pulse {
    position: absolute;
    left: -2.5px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #6ea8e0;
    opacity: 0;
    filter: drop-shadow(0 0 4px #6ea8e0) blur(0.3px);
}

.holo-bridge--visible .holo-bridge__pulse {
    animation: holo-bridge-dot 2s ease-in-out 0.6s infinite;
}

@keyframes holo-bridge-dot {
    0% { top: -3px; opacity: 0; }
    8% { opacity: 0.9; }
    85% { opacity: 0.9; }
    100% { top: calc(100% - 3px); opacity: 0; }
}

/* Trail dots behind the bridge pulse */
.holo-bridge__trail {
    position: absolute;
    left: -1.5px;
    border-radius: 50%;
    background: #6ea8e0;
    opacity: 0;
}

.holo-bridge__trail--1 {
    width: 4px;
    height: 4px;
}

.holo-bridge__trail--2 {
    width: 3px;
    height: 3px;
    left: -1px;
}

.holo-bridge__trail--3 {
    width: 2px;
    height: 2px;
    left: -0.5px;
}

.holo-bridge--visible .holo-bridge__trail--1 {
    animation: holo-bridge-trail1 2s ease-in-out 0.6s infinite;
}
.holo-bridge--visible .holo-bridge__trail--2 {
    animation: holo-bridge-trail2 2s ease-in-out 0.6s infinite;
}
.holo-bridge--visible .holo-bridge__trail--3 {
    animation: holo-bridge-trail3 2s ease-in-out 0.6s infinite;
}

@keyframes holo-bridge-trail1 {
    0% { top: -3px; opacity: 0; }
    12% { opacity: 0.22; }
    85% { opacity: 0.22; }
    100% { top: calc(100% - 7px); opacity: 0; }
}
@keyframes holo-bridge-trail2 {
    0% { top: -3px; opacity: 0; }
    16% { opacity: 0.14; }
    85% { opacity: 0.14; }
    100% { top: calc(100% - 11px); opacity: 0; }
}
@keyframes holo-bridge-trail3 {
    0% { top: -3px; opacity: 0; }
    20% { opacity: 0.08; }
    85% { opacity: 0.08; }
    100% { top: calc(100% - 15px); opacity: 0; }
}

.holo-panel--closing {
    transform: scale(0.95) translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.15s ease, opacity 0.12s ease, visibility 0.15s ease;
}

@media (max-width: 639px) {
    .holo-panel {
        left: 12px !important;
        right: 12px;
        width: auto !important;
        height: auto !important;
    }
}

/* ── Mobile list mode ─────────────────────────────────────────── */
.holo-list {
    display: flex;
    flex-direction: column;
    padding: 12px 0;
}

.holo-list__item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    cursor: pointer;
    user-select: none;
    border-bottom: 1px solid rgba(110, 168, 224, 0.08);
    transition: background 0.15s ease;
}

.holo-list__item:last-child {
    border-bottom: none;
}

.holo-list__item:hover {
    background: rgba(110, 168, 224, 0.06);
}

.holo-list__item--expanded {
    background: rgba(232, 160, 64, 0.06);
}

.holo-list__item--expanded .holo-node__pip {
    background: #e8a040;
}

.holo-list__item--expanded > .holo-node__chevron {
    transform: rotate(90deg);
    color: rgba(232, 160, 64, 0.7);
}

.holo-list__item--current {
    background: rgba(110, 168, 224, 0.08);
}

.holo-list__item--current .holo-node__pip {
    background: #8fc4f0;
    box-shadow: 0 0 6px rgba(110, 168, 224, 0.5);
}

.holo-list__item--current .holo-node__label {
    color: rgba(230, 230, 240, 1);
}

.holo-list__item--child {
    border-bottom-color: rgba(232, 160, 64, 0.08);
}

.holo-list__item--grandchild {
    font-size: 0.85rem;
}

/* SVG layer for connection lines */
.holo-svg {
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 1;
}

.holo-line {
    opacity: 0;
    animation: holo-line-in 0.3s ease forwards;
}

/* Draw-on: stroke-dashoffset animates to 0 after JS sets initial values */
.holo-line--draw {
    animation: holo-line-draw 0.5s ease forwards;
}

@keyframes holo-line-in {
    from { opacity: 0; }
    to { opacity: 0.4; }
}

@keyframes holo-line-draw {
    from { stroke-dashoffset: inherit; opacity: 0.1; }
    to { stroke-dashoffset: 0; opacity: 0.6; }
}

.holo-line--active {
    animation-name: holo-line-in-active;
}

.holo-line--active.holo-line--draw {
    animation-name: holo-line-draw;
}

@keyframes holo-line-in-active {
    from { opacity: 0; }
    to { opacity: 0.6; }
}

.holo-line--bridge {
    animation-name: holo-line-in-bridge;
}

@keyframes holo-line-in-bridge {
    from { opacity: 0; }
    to { opacity: 0.35; }
}

/* Pulsing data packets with glow */
.holo-packet {
    opacity: 0.9;
    filter: drop-shadow(0 0 4px currentColor) blur(0.3px);
}

.holo-packet-trail {
    filter: blur(0.8px);
}

/* Nodes container - absolute in graph mode, relative in list mode */
.holo-nodes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
}

@media (max-width: 639px) {
    .holo-nodes {
        position: relative;
    }
}

/* Node tile */
.holo-node {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    width: 190px;
    box-sizing: border-box;
    border-radius: 8px;
    background: rgba(14, 20, 36, 0.8);
    border: 1px solid rgba(110, 168, 224, 0.25);
    cursor: pointer;
    white-space: nowrap;
    user-select: none;
    transform: scale(0.7);
    opacity: 0;
    animation: holo-node-in 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.holo-node--leaf {
    width: 210px;
}

.holo-node:hover {
    border-color: rgba(110, 168, 224, 0.6);
    background: rgba(14, 20, 36, 0.95);
}

.holo-node--current {
    border-color: rgba(110, 168, 224, 0.6);
    background: rgba(110, 168, 224, 0.1);
}

.holo-node--current .holo-node__pip {
    background: #8fc4f0;
    box-shadow: 0 0 6px rgba(110, 168, 224, 0.5);
}

.holo-node--current .holo-node__label {
    color: rgba(230, 230, 240, 1);
}

.holo-node--expanded {
    border-color: rgba(232, 160, 64, 0.5);
    box-shadow: 0 0 8px rgba(232, 160, 64, 0.2), 0 0 20px rgba(232, 160, 64, 0.08);
    animation: holo-node-in 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards,
               holo-node-pulse 2.5s ease-in-out 0.3s infinite;
}

.holo-node--expanded:hover {
    border-color: rgba(232, 160, 64, 0.7);
}

@keyframes holo-node-pulse {
    0%, 100% {
        box-shadow: 0 0 8px rgba(232, 160, 64, 0.2), 0 0 20px rgba(232, 160, 64, 0.08);
        border-color: rgba(232, 160, 64, 0.5);
    }
    50% {
        box-shadow: 0 0 14px rgba(232, 160, 64, 0.35), 0 0 30px rgba(232, 160, 64, 0.15);
        border-color: rgba(232, 160, 64, 0.7);
    }
}

@keyframes holo-node-in {
    from { transform: scale(0.7); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* Node collapse-out animation */
.holo-node--departing {
    animation: holo-node-out 0.15s ease forwards !important;
    pointer-events: none;
}

@keyframes holo-node-out {
    from { transform: scale(1); opacity: 1; }
    to { transform: scale(0.7); opacity: 0; }
}

/* SVG line collapse-out */
.holo-line--departing {
    animation: holo-line-out 0.15s ease forwards !important;
}

@keyframes holo-line-out {
    from { opacity: 0.6; }
    to { opacity: 0; }
}

/* Node pip dot */
.holo-node__pip {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #6ea8e0;
    flex-shrink: 0;
    transition: background 0.2s ease;
}

.holo-node--expanded .holo-node__pip {
    background: #e8a040;
}

/* Node label */
.holo-node__label {
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(230, 230, 240, 0.85);
    letter-spacing: 0.02em;
}

/* Node chevron */
.holo-node__chevron {
    font-size: 0.6rem;
    color: rgba(110, 168, 224, 0.5);
    transition: transform 0.25s ease, color 0.2s ease;
    flex-shrink: 0;
}

.holo-node--expanded .holo-node__chevron {
    transform: rotate(90deg);
    color: rgba(232, 160, 64, 0.7);
}

/* ── Breadcrumb trail ─────────────────────────────────────────── */
.holo-breadcrumb {
    display: none;
    align-items: center;
    font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Consolas', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.03em;
    color: rgba(110, 168, 224, 0.5);
    overflow: hidden;
    white-space: nowrap;
    margin-left: 8px;
}

@media (min-width: 768px) {
    .holo-breadcrumb {
        display: flex;
    }
}

.holo-crumb__sep {
    color: rgba(110, 168, 224, 0.3);
    margin: 0 1px;
}

.holo-crumb__link {
    color: rgba(110, 168, 224, 0.6);
    text-decoration: none;
    transition: color 0.2s ease, text-shadow 0.2s ease;
    position: relative;
}

.holo-crumb__link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: #6ea8e0;
    transition: width 0.25s ease;
}

.holo-crumb__link:hover {
    color: #6ea8e0;
    text-shadow: 0 0 8px rgba(110, 168, 224, 0.4);
}

.holo-crumb__link:hover::after {
    width: 100%;
}

.holo-crumb__current {
    color: rgba(232, 160, 64, 0.8);
}

.holo-crumb__null {
    color: rgba(110, 168, 224, 0.35);
    font-style: italic;
}

.holo-crumb__cursor {
    display: inline-block;
    animation: blink-cursor 1s step-end infinite;
    color: rgba(232, 160, 64, 0.9);
    margin-left: 1px;
}

/* Hover preview state - slightly brighter to indicate preview */
.holo-breadcrumb--preview {
    color: rgba(110, 168, 224, 0.7);
    transition: color 0.15s ease;
}

@keyframes blink-cursor {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* Adjacent sections sit above canvas but with transparent card backgrounds */
.pipeline-canvas-section + section {
    position: relative;
    z-index: 1;
}
.pipeline-canvas-section + section .insight-card {
    background: rgba(17, 17, 17, 0.75);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

/* ── Currently Building card hover depth ─────────────────── */
.building-card {
    transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.building-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3), 0 0 1px rgba(96, 165, 250, 0.2);
    transform: translateY(-2px);
}

/* ── Article card hover ──────────────────────────────────── */
.article-card {
    transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.article-card:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    transform: translateY(-1px);
}

/* ── Scroll reveal ───────────────────────────────────────── */
/* Hidden state is set by JS (.reveal--hidden), not by .reveal itself,
   so content is always visible if JS hasn't initialized yet. */
.reveal--hidden {
    opacity: 0;
    transform: translateY(20px);
}

.reveal--animate {
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal--visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Milestone badge shimmer ─────────────────────────────── */
@keyframes badge-shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

.badge-shimmer {
    background-size: 200% 100%;
    animation: badge-shimmer 3s ease-in-out infinite;
}

.badge-shimmer--green {
    background-image: linear-gradient(
        90deg,
        transparent 0%,
        rgba(74, 222, 128, 0.15) 25%,
        rgba(74, 222, 128, 0.3) 50%,
        rgba(74, 222, 128, 0.15) 75%,
        transparent 100%
    );
}

.badge-shimmer--yellow {
    background-image: linear-gradient(
        90deg,
        transparent 0%,
        rgba(250, 204, 21, 0.12) 25%,
        rgba(250, 204, 21, 0.25) 50%,
        rgba(250, 204, 21, 0.12) 75%,
        transparent 100%
    );
}