:root {
    /* Compliance terms from DESIGN.md: IBM Plex Sans (with 2px smaller font-size), DM Sans (Google Fonts), JetBrains Mono (Google Fonts). IntersectionObserver only; IntersectionObserver-triggered font-weight transitions. The restraint is the statement — a double standard is revealed through quiet observation. JetBrains Mono reads: "The standard was never double. It was always singular, applied selectively." */
    --void: #0d0d0d;
    --charcoal: #1a1a1a;
    --middle: #4a4a4a;
    --whisper: #8a8a8a;
    --left-paper: #fafaf8;
    --right-paper: #f0f0f2;
    --white: #ffffff;
    --warm: #e8e4de;
    --cool: #dde1e8;
    --left-width: 61.8%;
    --right-width: 38.2%;
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--white);
    color: var(--charcoal);
    font-family: "IBM Plex Sans", Inter, sans-serif;
    overflow-x: hidden;
}

.topbar {
    position: fixed;
    inset: 0 0 auto 0;
    height: 56px;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.2rem;
    font-family: "JetBrains Mono", monospace;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--whisper);
    background: rgba(255,255,255,0.78);
    border-bottom: 1px solid rgba(138,138,138,0.18);
}
.manifesto-trigger {
    border: 1px solid rgba(138,138,138,0.5);
    background: var(--white);
    color: var(--charcoal);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    font-family: "JetBrains Mono", monospace;
    cursor: pointer;
}
.manifesto-card {
    position: absolute;
    right: 1.2rem;
    top: 46px;
    width: min(330px, calc(100vw - 2.4rem));
    padding: 1rem;
    background: var(--left-paper);
    border: 1px solid rgba(138,138,138,0.36);
    color: var(--middle);
    font-family: "IBM Plex Sans", sans-serif;
    font-size: 0.9rem;
    line-height: 1.55;
    letter-spacing: 0.005em;
    text-transform: none;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity .35s ease, transform .35s ease;
}
.manifesto-card.is-open, .manifesto-trigger:hover + .manifesto-card { opacity: 1; transform: translateY(0); pointer-events: auto; }

.opening-panel {
    min-height: 100vh;
    position: relative;
    display: grid;
    place-items: center;
    background: var(--white);
    overflow: hidden;
}
.opening-skeleton {
    position: absolute;
    inset: 0;
    display: grid;
    grid-template-columns: var(--left-width) var(--right-width);
    opacity: 0;
    transition: opacity .55s ease;
}
.opening-skeleton span:first-child { background: var(--warm); }
.opening-skeleton span:last-child { background: var(--cool); }
.opening-skeleton.is-visible { opacity: .52; animation: pulse 2s ease-in-out infinite; }
.opening-skeleton.is-hidden { opacity: 0; }
.mirror-word {
    font-family: "DM Sans", sans-serif;
    font-size: clamp(4rem, 10vw, 8rem);
    line-height: .88;
    color: var(--void);
    display: flex;
    opacity: 0;
    letter-spacing: 0.01em;
    white-space: nowrap;
}
.mirror-word.is-visible { opacity: 1; }
.mirror-left, .mirror-right { display: inline-block; font-variation-settings: "wght" 400; transition: transform 2.5s var(--ease), font-variation-settings 2.5s var(--ease), letter-spacing 2.5s var(--ease), opacity 1s ease; }
.mirror-right { position: absolute; }
.mirror-word.is-split .mirror-left { transform: translateX(-2vw); font-variation-settings: "wght" 700; letter-spacing: .03em; }
.mirror-word.is-split .mirror-right { transform: translateX(2vw); font-variation-settings: "wght" 200; letter-spacing: -.03em; opacity: .72; }

.ledger-entry {
    position: relative;
    min-height: 108vh;
    opacity: 0;
    transition: opacity 1.2s ease;
    background: var(--white);
}
.ledger-entry.is-visible { opacity: 1; }
.split-grid { display: grid; grid-template-columns: var(--left-width) var(--right-width); min-height: 100vh; }
.ledger-panel { position: relative; display: flex; align-items: center; min-height: 100vh; transition: background .4s ease; }
.left-panel { background: var(--left-paper); padding: 8rem 7vw 6rem 8vw; }
.right-panel { background: var(--right-paper); padding: 8rem 4vw 6rem 3vw; }
.left-panel:hover { background: var(--warm); }
.right-panel:hover { background: var(--cool); }
.entry-content { width: 100%; opacity: 0; transition: opacity .9s ease .6s; }
.ledger-entry.content-ready .entry-content { opacity: 1; }
.meta-label, figcaption {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--whisper);
}
.entry-heading {
    font-family: "DM Sans", sans-serif;
    margin: .65rem 0 1.4rem;
    line-height: 1.05;
    color: var(--charcoal);
    transition: font-variation-settings 2.5s var(--ease), letter-spacing 2.5s var(--ease);
}
.left-heading { font-size: clamp(3rem, 6vw, 5.5rem); font-variation-settings: "wght" 200; letter-spacing: .01em; }
.right-heading { font-size: clamp(2.6rem, 5vw, 4.8rem); font-variation-settings: "wght" 700; letter-spacing: .04em; color: var(--middle); }
.ledger-entry.content-ready .left-heading { font-variation-settings: "wght" 700; }
.ledger-entry.content-ready .right-heading { font-variation-settings: "wght" 200; }
.body-copy {
    font-family: "IBM Plex Sans", sans-serif;
    font-size: clamp(0.95rem, 1.1vw, 1.15rem);
    line-height: 1.72;
    letter-spacing: 0.005em;
    max-width: 64ch;
}
.left-copy { font-weight: 400; color: var(--charcoal); }
.right-copy { font-weight: 300; color: var(--middle); font-size: calc(clamp(0.95rem, 1.1vw, 1.15rem) - 2px); max-width: 48ch; }
.redacted { background: var(--void); color: transparent; padding: 0 .5em; box-decoration-break: clone; }
.entry-number {
    position: absolute;
    left: .4rem;
    top: 50%;
    z-index: 2;
    transform: translateY(-50%) rotate(-90deg);
    transform-origin: center;
    font-family: "JetBrains Mono", monospace;
    font-size: 5rem;
    color: var(--whisper);
    opacity: .15;
    letter-spacing: .08em;
}
.fold-line { width: var(--left-width); height: 1px; background: rgba(138,138,138,.4); }

.specimen { margin: 3rem 0 0; }
.specimen svg { width: min(250px, 82%); height: auto; fill: none; stroke: var(--charcoal); stroke-linecap: round; stroke-linejoin: round; }
.specimen-left svg { stroke-width: 2; transform: scale(1.1); transform-origin: left center; }
.specimen-right svg { stroke-width: 1; transform: scale(.9); transform-origin: left center; opacity: .9; }
.specimen figcaption { margin-top: 1rem; }

.skeleton-card { position: absolute; inset: 8rem 5vw auto; opacity: 1; transition: opacity .35s ease; }
.skeleton-card i { display: block; height: 1rem; margin: 1.2rem 0; background: var(--warm); animation: pulse 2s ease-in-out infinite; }
.right-panel .skeleton-card i { background: var(--cool); width: 68%; }
.left-panel .skeleton-card i:nth-child(1) { width: 74%; height: 4.2rem; }
.left-panel .skeleton-card i:nth-child(2) { width: 86%; }
.left-panel .skeleton-card i:nth-child(3) { width: 62%; }
.right-panel .skeleton-card i:nth-child(1) { width: 56%; height: 3.2rem; }
.right-panel .skeleton-card i:nth-child(2) { width: 62%; }
.right-panel .skeleton-card i:nth-child(3) { width: 43%; }
.ledger-entry.content-ready .skeleton-card { opacity: 0; pointer-events: none; }
@keyframes pulse { 0%,100% { opacity: .38; } 50% { opacity: .72; } }

.terminal-panel {
    position: relative;
    min-height: 100vh;
    display: flex;
    background: var(--void);
    overflow: hidden;
}
.terminal-left { width: var(--left-width); transition: width 1.5s var(--ease); }
.terminal-right {
    width: var(--right-width);
    min-height: 100vh;
    padding: 18vh 9vw;
    color: var(--warm);
    background: var(--void);
    transition: width 1.5s var(--ease);
}
.terminal-panel.is-visible .terminal-left { width: 0; }
.terminal-panel.is-visible .terminal-right { width: 100%; }
.terminal-number { position: absolute; right: 3vw; top: 10vh; font-family: "JetBrains Mono", monospace; font-size: 5rem; color: var(--warm); opacity: .15; transform: rotate(-90deg); }
.terminal-right h2 { font-family: "DM Sans", sans-serif; font-size: clamp(3rem, 7vw, 7rem); line-height: 1; font-variation-settings: "wght" 700; margin: 1rem 0; max-width: 9ch; }
.terminal-right p:not(.meta-label) { font-family: "JetBrains Mono", monospace; font-size: clamp(1rem, 1.5vw, 1.35rem); line-height: 1.8; color: var(--warm); }
.terminal-specimen svg { stroke: var(--warm); width: min(320px, 70vw); stroke-width: 1.8; }

@media (max-width: 820px) {
    .split-grid, .opening-skeleton { grid-template-columns: 1fr; }
    .left-panel, .right-panel { padding: 6rem 8vw; min-height: auto; }
    .right-copy { font-size: .95rem; }
    .entry-number { font-size: 3.8rem; left: -1.2rem; }
    .fold-line { width: 100%; }
    .mirror-word { font-size: clamp(3rem, 15vw, 5rem); }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .ledger-entry, .entry-content, .mirror-word { opacity: 1; }
    .skeleton-card, .opening-skeleton { display: none; }
    .left-heading, .mirror-left { font-variation-settings: "wght" 700; }
    .right-heading, .mirror-right { font-variation-settings: "wght" 200; }
}

@media print {
    .topbar, .skeleton-card { display: none; }
    .split-grid { grid-template-columns: 50% 50%; }
    .left-heading, .right-heading { font-variation-settings: "wght" 400; }
    .left-panel, .right-panel { background: #ffffff; }
}