/* ============================================
   postp.quest — Deconstructed Digital Manifesto
   ============================================ */

/* Fonts: IBM Plex Mono" (Google Fonts) — annotation at 0.75rem: */

/* --- CSS Custom Properties --- */
:root {
    --void: #0A0A0A;
    --paper: #F0EDE8;
    --erasure-gray: #6B6560;
    --ash: #2A2725;
    --signal-red: #C23028;
    --trace-blue: #2848A0;
    --margin-gold: #B8960C;
    --static-gray: #808080;

    --font-body: 'Libre Baskerville', Georgia, serif;
    --font-display: 'Bebas Neue', Impact, sans-serif;
    --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

    --noise-opacity: 0.03;
}

/* --- Reset --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background-color: var(--void);
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(1rem, 1.2vw, 1.15rem);
    line-height: 1.75;
    letter-spacing: 0.01em;
    color: var(--paper);
    background-color: var(--void);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* --- Noise Overlay --- */
#noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: var(--noise-opacity);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
    background-repeat: repeat;
}

/* --- Vertical Fissure --- */
#vertical-fissure {
    position: fixed;
    top: 0;
    left: 50%;
    width: 1px;
    height: 100vh;
    background-color: var(--erasure-gray);
    z-index: 10;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

#vertical-fissure.dashed {
    background: repeating-linear-gradient(
        to bottom,
        var(--erasure-gray) 0px,
        var(--erasure-gray) 8px,
        transparent 8px,
        transparent 16px
    );
}

#vertical-fissure.fragmented {
    background: repeating-linear-gradient(
        to bottom,
        var(--erasure-gray) 0px,
        var(--erasure-gray) 2px,
        transparent 2px,
        transparent 24px
    );
    opacity: 0.5;
}

#vertical-fissure.dissolved {
    opacity: 0;
}

/* --- Navigation --- */
#nav {
    position: fixed;
    top: 2rem;
    left: 2rem;
    z-index: 1000;
}

#nav-toggle {
    background: none;
    border: none;
    color: var(--paper);
    font-family: var(--font-mono);
    font-weight: 300;
    font-size: clamp(0.7rem, 0.9vw, 0.8rem);
    letter-spacing: 0.04em;
    cursor: pointer;
    padding: 0.5rem 0;
    position: relative;
}

#nav-toggle:hover {
    color: var(--signal-red);
}

.strikethrough-text {
    text-decoration: line-through;
    text-decoration-color: var(--signal-red);
    text-decoration-thickness: 1px;
}

#nav-menu {
    list-style: none;
    display: none;
    margin-top: 1rem;
    flex-direction: column;
    gap: 0.75rem;
}

#nav-menu.open {
    display: flex;
}

#nav-menu li a {
    color: var(--erasure-gray);
    font-family: var(--font-mono);
    font-weight: 300;
    font-size: clamp(0.7rem, 0.9vw, 0.8rem);
    letter-spacing: 0.04em;
    text-decoration: none;
    transition: color 0.2s ease;
    position: relative;
}

#nav-menu li a:hover {
    color: var(--signal-red);
}

#nav-menu li a.visited-link {
    color: var(--erasure-gray);
    text-decoration: line-through;
    text-decoration-color: var(--erasure-gray);
}

/* --- Stratum Base --- */
.stratum {
    position: relative;
    min-height: 100vh;
    width: 100%;
}

/* --- Typography Classes --- */
.display-heading {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(3.5rem, 8vw, 7rem);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    line-height: 1.1;
    color: var(--paper);
}

.body-text {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(1rem, 1.2vw, 1.15rem);
    line-height: 1.75;
    letter-spacing: 0.01em;
    color: var(--paper);
    text-align: justify;
    hyphens: auto;
}

.text-break-left {
    text-align: left;
}

.annotation-text {
    font-family: var(--font-mono);
    font-weight: 300;
    font-size: clamp(0.7rem, 0.9vw, 0.8rem);
    letter-spacing: 0.04em;
    color: var(--margin-gold);
    line-height: 1.6;
}

.struck-heading {
    text-decoration: line-through;
    text-decoration-color: var(--signal-red);
    text-decoration-thickness: 3px;
}

.inline-struck {
    text-decoration: line-through;
    text-decoration-color: var(--signal-red);
    text-decoration-thickness: 2px;
}

/* --- STRATUM 0: The Erasure --- */
.stratum-0 {
    background-color: var(--void);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.erasure-content {
    text-align: center;
    width: 100%;
    padding: 2rem;
    position: relative;
}

.erasure-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.erasure-line {
    position: relative;
    display: inline-block;
    opacity: 0;
}

.erasure-line.visible {
    opacity: 1;
}

.erasure-text {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(3rem, 9vw, 8rem);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--paper);
    display: inline-block;
}

.erasure-text-final {
    font-size: clamp(2.5rem, 7vw, 6rem);
}

.strikethrough-svg {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 4px;
    transform: translateY(-50%);
    overflow: visible;
}

.strike-line {
    stroke-dasharray: 100;
    stroke-dashoffset: 100;
    transition: stroke-dashoffset 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.strike-line.drawn {
    stroke-dashoffset: 0;
}

.scroll-arrow {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    animation: pulse-arrow 2s ease-in-out infinite;
}

.scroll-arrow.visible {
    opacity: 1;
}

@keyframes pulse-arrow {
    0%, 100% { opacity: 0.4; transform: translateX(-50%) translateY(0); }
    50% { opacity: 1; transform: translateX(-50%) translateY(8px); }
}

/* --- STRATUM 1: The Binary --- */
.stratum-1 {
    background-color: var(--ash);
    padding: 6rem 2rem;
}

.stratum-heading {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
}

.binary-container {
    display: grid;
    grid-template-columns: 1fr 4px 1fr;
    gap: 0;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.binary-column {
    padding: 2rem 3rem;
}

.binary-column h3 {
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.binary-column .body-text {
    margin-bottom: 1.5rem;
}

.binary-divider {
    width: 4px;
    background-color: var(--signal-red);
    position: relative;
    transition: opacity 0.5s ease;
}

.binary-divider.fracturing {
    background: repeating-linear-gradient(
        to bottom,
        var(--signal-red) 0px,
        var(--signal-red) 20px,
        transparent 20px,
        transparent 30px
    );
}

.binary-divider.dissolved {
    opacity: 0.2;
    background: repeating-linear-gradient(
        to bottom,
        var(--signal-red) 0px,
        var(--signal-red) 4px,
        transparent 4px,
        transparent 20px
    );
}

/* Bleed effect for binary columns */
.binary-thesis {
    transition: clip-path 0.6s ease;
    clip-path: inset(0 0 0 0);
}

.binary-antithesis {
    transition: clip-path 0.6s ease;
    clip-path: inset(0 0 0 0);
}

.binary-thesis.bleeding {
    clip-path: inset(0 -5% 0 0);
}

.binary-antithesis.bleeding {
    clip-path: inset(0 0 0 -5%);
}

/* --- STRATUM 2: The Margin --- */
.stratum-2 {
    background-color: var(--void);
    padding: 6rem 0;
    min-height: 100vh;
}

.stratum-2 .stratum-heading {
    padding: 0 2rem;
}

.margin-container {
    display: grid;
    grid-template-columns: minmax(200px, 1fr) 3fr minmax(200px, 1fr);
    min-height: 70vh;
    position: relative;
}

.margin-left-annotations,
.margin-right-annotations {
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.margin-left-annotations {
    text-align: right;
    align-items: flex-end;
}

.margin-right-annotations {
    text-align: left;
    align-items: flex-start;
}

.margin-note {
    max-width: 220px;
    opacity: 0.8;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.margin-note:hover {
    opacity: 1;
}

.margin-void {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.void-marker {
    opacity: 0.15;
    font-style: italic;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    white-space: nowrap;
}

.negation-marks {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    padding: 3rem 0;
    opacity: 0.5;
}

.negation-symbol {
    display: block;
}

.bracket-open {
    font-size: 1.5rem;
    color: var(--erasure-gray);
}

/* --- STRATUM 3: The Trace --- */
.stratum-3 {
    background-color: var(--ash);
    padding: 6rem 2rem;
    min-height: 120vh;
}

.trace-container {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-auto-rows: auto;
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

.fragment {
    border: 1px solid var(--erasure-gray);
    padding: 2rem;
    background-color: rgba(10, 10, 10, 0.85);
    box-shadow: 2px 4px 8px rgba(0, 0, 0, 0.3);
    position: relative;
    transition: transform 0.1s linear;
    will-change: transform;
}

.fragment-1 {
    grid-column: 1 / 5;
    grid-row: 1;
    transform: rotate(-3deg);
}

.fragment-2 {
    grid-column: 4 / 9;
    grid-row: 1;
    z-index: 2;
    mix-blend-mode: difference;
    transform: rotate(2deg);
}

.fragment-3 {
    grid-column: 7 / 12;
    grid-row: 2;
    transform: rotate(-1deg);
}

.fragment-4 {
    grid-column: 2 / 6;
    grid-row: 2;
    transform: rotate(4deg);
    z-index: 3;
}

.fragment-5 {
    grid-column: 5 / 11;
    grid-row: 3;
    transform: rotate(-2deg);
}

.fragment-6 {
    grid-column: 1 / 4;
    grid-row: 3;
    transform: rotate(1deg);
}

.fragment-7 {
    grid-column: 8 / 12;
    grid-row: 4;
    transform: rotate(-4deg);
}

.fragment-quote {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    letter-spacing: 0.1em;
    line-height: 1.3;
}

/* --- STRATUM 4: The Differance --- */
.stratum-4 {
    background-color: var(--void);
    padding: 6rem 2rem 0;
    min-height: 100vh;
    position: relative;
}

.differance-container {
    max-width: 700px;
    margin: 0 auto;
}

.differance-text {
    margin-bottom: 2rem;
    transition: opacity 0.3s ease;
}

.differance-trailing {
    margin-top: 4rem;
    opacity: 0.6;
    font-size: 0.75rem;
    transition: opacity 0.3s ease;
}

.differance-void {
    height: 50vh;
    position: relative;
}

/* --- Palimpsest Effect --- */
.stratum {
    position: relative;
}

.stratum::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* --- Links --- */
a {
    color: var(--trace-blue);
    text-decoration: none;
    border-bottom: 1px solid var(--trace-blue);
    transition: color 0.2s ease, border-color 0.2s ease;
}

a:hover {
    color: var(--paper);
    border-color: var(--paper);
}

/* --- Selection --- */
::selection {
    background-color: var(--signal-red);
    color: var(--paper);
}

/* --- Letter Animation --- */
.letter-reveal {
    display: inline-block;
    opacity: 0;
    transition: opacity 0.05s ease;
}

.letter-reveal.shown {
    opacity: 1;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .binary-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .binary-divider {
        width: 100%;
        height: 4px;
    }

    .binary-column {
        padding: 1.5rem;
    }

    .margin-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .margin-left-annotations,
    .margin-right-annotations {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 1rem;
        text-align: left;
        align-items: flex-start;
        padding: 1rem 1.5rem;
    }

    .margin-note {
        max-width: 100%;
    }

    .trace-container {
        grid-template-columns: 1fr;
    }

    .fragment {
        grid-column: 1 / -1 !important;
    }

    #nav {
        top: 1rem;
        left: 1rem;
    }

    .erasure-text {
        font-size: clamp(2rem, 8vw, 4rem);
    }
}