/* ============================================================
   a6c.dev — pastoral-romantic developer grimoire
   Palette:
     #0b0a08 ink-coal      (primary background)
     #f4efe2 bone-candle   (primary foreground)
     #1a1512 hearth-ember  (card hover interior)
     #ffffff chalk-strike  (caret only)
     #7b3f8f foxglove      (links / italics / monogram)
     #d6a454 harvest-moon  (keywords / timestamps / active rail)
     #8a8070 dust-rail     (marginalia / metadata)
     #3a2a2a oxblood-shadow (hairlines / em-dashes)
   Faces:
     Playfair Display, Cormorant Garamond, Special Elite
   ============================================================ */

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

:root {
    --ink-coal: #0b0a08;
    --bone-candle: #f4efe2;
    --hearth-ember: #1a1512;
    --chalk-strike: #ffffff;
    --foxglove: #7b3f8f;
    --harvest-moon: #d6a454;
    --dust-rail: #8a8070;
    --oxblood: #3a2a2a;

    --grid-baseline: 4px;
    --gutter: 16px;
    --rail-width: 56px;

    --serif-display: "Playfair Display", "Cormorant Garamond", Georgia, serif;
    --serif-body: "Cormorant Garamond", Georgia, serif;
    --type-mono: "Special Elite", "Courier New", monospace;
}

html, body {
    background-color: var(--ink-coal);
    color: var(--bone-candle);
    font-family: var(--serif-body);
    font-size: 18px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    overflow-x: hidden;
    min-height: 100vh;
    background-image:
        radial-gradient(ellipse at center top, rgba(214,164,84,0.025), transparent 60%),
        radial-gradient(ellipse at center bottom, rgba(123,63,143,0.020), transparent 70%);
}

/* ---------- LEFT RAIL (the telegraph) ---------- */
.rail {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--rail-width);
    height: 100vh;
    padding: 48px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 36px;
    border-right: 1px solid var(--oxblood);
    background: var(--ink-coal);
    z-index: 50;
}

.rail-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: var(--dust-rail);
    text-decoration: none;
    transition: color 400ms ease;
}

.rail-item .rail-glyph {
    width: 28px;
    height: 28px;
    stroke: var(--dust-rail);
    fill: none;
    transition: stroke 400ms ease, transform 400ms ease;
}

.rail-item .rail-glyph text { fill: var(--dust-rail); transition: fill 400ms ease; }

.rail-item .rail-code {
    font-family: var(--type-mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    color: var(--dust-rail);
    transition: color 400ms ease;
}

.rail-item.active .rail-glyph,
.rail-item:hover .rail-glyph {
    stroke: var(--harvest-moon);
}
.rail-item.active .rail-glyph text,
.rail-item:hover .rail-glyph text {
    fill: var(--harvest-moon);
}
.rail-item.active .rail-code,
.rail-item:hover .rail-code {
    color: var(--harvest-moon);
}

/* ---------- PAGE CONTAINER ---------- */
.page {
    margin-left: var(--rail-width);
    padding: 0;
    max-width: 100%;
}

/* ---------- HERO ---------- */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 80px 32px 120px;
}

.hero-card {
    width: clamp(320px, 40vw, 560px);
    border: 1px solid var(--bone-candle);
    padding: 48px 40px 40px;
    background: var(--ink-coal);
    text-align: left;
    position: relative;
}

.hero-card::before,
.hero-card::after {
    content: "";
    position: absolute;
    width: 8px;
    height: 8px;
    border: 1px solid var(--oxblood);
    background: var(--ink-coal);
}
.hero-card::before { top: -5px; left: -5px; }
.hero-card::after { bottom: -5px; right: -5px; }

.hero-mark {
    font-family: var(--type-mono);
    font-size: clamp(28px, 4.5vw, 44px);
    color: var(--bone-candle);
    line-height: 1.05;
    letter-spacing: 0.02em;
    display: flex;
    align-items: baseline;
    min-height: 1.05em;
    white-space: pre;
}

.hero-text {
    display: inline-block;
    transition: transform 12ms linear;
}

.caret {
    display: inline-block;
    width: 0.55em;
    height: 0.95em;
    background: var(--chalk-strike);
    margin-left: 2px;
    vertical-align: -0.05em;
    animation: blink 1060ms steps(1, end) infinite;
}

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

.hero-tagline {
    margin-top: 36px;
    font-family: var(--serif-display);
    font-style: italic;
    font-weight: 400;
    color: var(--foxglove);
    font-size: 22px;
    line-height: 1.4;
    opacity: 0;
    transition: opacity 1400ms ease;
}

.hero-tagline.visible { opacity: 1; }

.hero-tagline .dash {
    display: block;
    color: var(--oxblood);
    font-style: normal;
    font-size: 28px;
    line-height: 1;
    margin-bottom: 4px;
}

.hero-tagline .verse-line {
    display: block;
    color: var(--foxglove);
}

.hero-candle {
    position: absolute;
    bottom: 48px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.85;
}

.candle-svg .flame {
    transform-origin: 40px 50px;
    animation: flicker 2400ms ease-in-out infinite;
}

@keyframes flicker {
    0%, 100% { transform: scaleY(1) translateX(0); opacity: 1; }
    25% { transform: scaleY(1.1) translateX(0.4px); opacity: 0.9; }
    50% { transform: scaleY(0.92) translateX(-0.3px); opacity: 1; }
    75% { transform: scaleY(1.06) translateX(0.2px); opacity: 0.95; }
}

.hero-candle.warm .flame {
    animation: flicker-warm 600ms ease-in-out;
}

@keyframes flicker-warm {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(1.25); }
}

/* ---------- SEAM RULES ---------- */
.seam {
    position: relative;
    width: 100%;
    padding: 48px 32px;
    text-align: center;
    border-top: 1px solid var(--bone-candle);
    margin: 24px 0;
}

.seam-label {
    font-family: var(--serif-display);
    font-style: italic;
    font-weight: 400;
    color: var(--bone-candle);
    font-size: 14px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    background: var(--ink-coal);
    padding: 0 24px;
    position: relative;
    top: -60px;
    display: inline-block;
}

/* ---------- CANTO / GRID ---------- */
.canto {
    padding: 24px 32px 48px;
    max-width: 1280px;
    margin: 0 auto;
}

.canto-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--gutter);
    grid-auto-flow: dense;
}

@media (max-width: 1100px) {
    .canto-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .canto-grid { grid-template-columns: 1fr; }
    .page { margin-left: 0; padding-bottom: 120px; }
    .rail { width: 100%; height: auto; flex-direction: row; padding: 12px; gap: 18px; bottom: 0; top: auto; border-right: none; border-top: 1px solid var(--oxblood); justify-content: space-around; }
}

/* card sizes */
.card {
    background: var(--ink-coal);
    border: 1px solid var(--bone-candle);
    padding: 28px 28px 32px;
    position: relative;
    transition: background-color 300ms ease, border-color 300ms ease;
    min-height: 200px;
    display: flex;
    flex-direction: column;
}

.card-1x1 { grid-column: span 1; grid-row: span 1; }
.card-2x1 { grid-column: span 2; grid-row: span 1; }
.card-2x2 { grid-column: span 2; grid-row: span 2; }

@media (max-width: 1100px) {
    .card-2x2, .card-2x1 { grid-column: span 2; grid-row: span 1; }
}
@media (max-width: 640px) {
    .card-2x2, .card-2x1, .card-1x1 { grid-column: span 1; }
}

.card:hover {
    background-color: var(--hearth-ember);
    border-color: var(--oxblood);
}

.card:hover .card-title::after,
.card:hover .card-heading::after,
.card:hover .card-eyebrow::after {
    transform: scaleX(1);
}

/* card content */
.card-eyebrow {
    font-family: var(--type-mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--dust-rail);
    margin-bottom: 12px;
    display: inline-block;
    position: relative;
}
.card-eyebrow::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -3px;
    width: 100%;
    height: 1px;
    background: var(--oxblood);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 320ms ease;
}

.card-title {
    font-family: var(--serif-display);
    font-weight: 900;
    font-size: clamp(2rem, 3.6vw, 3.4rem);
    letter-spacing: -0.015em;
    line-height: 0.95;
    color: var(--bone-candle);
    margin-bottom: 18px;
    position: relative;
}
.card-title::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 100%;
    height: 1px;
    background: var(--oxblood);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 320ms ease;
}

.card-heading {
    font-family: var(--serif-display);
    font-weight: 700;
    font-size: clamp(1.4rem, 1.8vw, 1.85rem);
    letter-spacing: -0.01em;
    line-height: 1.05;
    color: var(--bone-candle);
    margin-bottom: 14px;
    position: relative;
}
.card-heading::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 100%;
    height: 1px;
    background: var(--oxblood);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 320ms ease;
}

.card-prose {
    font-family: var(--serif-body);
    font-size: 18px;
    line-height: 1.65;
    color: var(--bone-candle);
    max-width: 32em;
}
.card-prose.small { font-size: 16px; line-height: 1.55; }

.card-aphorism {
    font-family: var(--serif-display);
    font-style: italic;
    font-weight: 400;
    font-size: clamp(1.25rem, 1.6vw, 1.6rem);
    line-height: 1.25;
    color: var(--bone-candle);
}

.card-epigraph em {
    display: block;
    font-family: var(--serif-display);
    font-style: italic;
    color: var(--foxglove);
    font-size: 17px;
    line-height: 1.5;
    text-align: left;
}
.card-epigraph em::before {
    content: "— ";
    color: var(--oxblood);
    font-style: normal;
}
.card-epigraph em:first-child::before { content: ""; }

.card-stamp {
    margin-top: auto;
    padding-top: 18px;
    font-family: var(--type-mono);
    font-size: 11px;
    color: var(--dust-rail);
    letter-spacing: 0.06em;
    border-top: 1px dashed var(--oxblood);
    margin-top: 22px;
}

.aster {
    display: block;
    text-align: center;
    color: var(--foxglove);
    font-size: 22px;
    margin-top: 14px;
    letter-spacing: 0.4em;
}

/* illustrated cards */
.card-illustration {
    margin-bottom: 18px;
    border-bottom: 1px solid var(--oxblood);
    padding-bottom: 14px;
}
.card-illustration.small-ill { border: none; padding-bottom: 6px; margin-bottom: 8px; }
.card-illustration .caption {
    font-family: var(--type-mono);
    font-size: 11px;
    color: var(--dust-rail);
    margin-top: 6px;
    text-align: center;
    letter-spacing: 0.05em;
}
.card-illustration .caption em {
    color: var(--foxglove);
    font-family: var(--serif-display);
    font-style: italic;
}
.card-illustration .scale { color: var(--harvest-moon); }

/* ---------- LETTER (code as correspondence) ---------- */
.letter {
    background-image:
        linear-gradient(to right, var(--oxblood) 50%, transparent 50%);
    background-size: 12px 1px;
    background-repeat: repeat-x;
    background-position: top, bottom;
}

.letter::before, .letter::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    height: 1px;
    background-image: linear-gradient(to right, var(--oxblood) 60%, transparent 60%);
    background-size: 10px 1px;
}
.letter::before { top: -1px; }
.letter::after { bottom: -1px; }

.letter-head {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    padding-bottom: 12px;
    margin-bottom: 16px;
    font-family: var(--type-mono);
    font-size: 11px;
    color: var(--dust-rail);
    letter-spacing: 0.05em;
    border-bottom: 1px dashed var(--oxblood);
}
.letter-from { font-style: italic; color: var(--foxglove); font-family: var(--serif-display); font-size: 13px; letter-spacing: 0; }

.codeblock {
    font-family: var(--type-mono);
    font-size: 14px;
    line-height: 1.85;
    color: var(--bone-candle);
    padding: 12px 0;
    overflow-x: auto;
    white-space: pre;
}
.codeblock .ln {
    display: inline-block;
    width: 28px;
    color: var(--dust-rail);
    text-align: right;
    margin-right: 12px;
    font-size: 11px;
    user-select: none;
}
.codeblock .kw { color: var(--harvest-moon); }
.codeblock .st { color: var(--foxglove); font-style: italic; font-family: var(--serif-display); }
.codeblock .fn { color: var(--bone-candle); }
.codeblock .pn { color: var(--bone-candle); font-style: italic; font-family: var(--serif-display); }

.letter-foot {
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px dashed var(--oxblood);
    display: flex;
    align-items: center;
    gap: 14px;
}
.signature {
    font-family: var(--serif-display);
    font-style: italic;
    color: var(--foxglove);
    font-size: 16px;
}

/* ---------- MARGINALIA ---------- */
.with-marginalia {
    position: relative;
}

.marginalia {
    display: none;
    position: absolute;
    top: 38px;
    right: -160px;
    width: 140px;
    font-family: var(--type-mono);
    font-size: 11px;
    color: var(--dust-rail);
    line-height: 1.4;
}
.marginalia .marg-line {
    position: absolute;
    left: -42px;
    top: 0;
}
.marginalia .marg-text { display: block; padding-left: 0; }

@media (min-width: 1100px) {
    .with-marginalia { padding-right: 28px; }
    .marginalia { display: block; }
}

@media (max-width: 1099px) {
    .marginalia {
        display: block;
        position: static;
        margin-top: 14px;
        padding: 10px 0 0;
        border-top: 1px dashed var(--oxblood);
        width: auto;
    }
    .marginalia .marg-line { display: none; }
}

/* ---------- PUNCH BAND ---------- */
.punch-band {
    height: 24px;
    margin: 32px auto;
    width: calc(100% - 64px);
    max-width: 1280px;
    display: flex;
    gap: 4px;
    align-items: center;
    justify-content: center;
    flex-wrap: nowrap;
    overflow: hidden;
}
.punch-band span {
    display: inline-block;
    width: 8px;
    height: 14px;
    border: 1px solid var(--dust-rail);
    flex-shrink: 0;
}

/* ---------- INTERLUDE (pastoral pause) ---------- */
.interlude {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 32px;
    scroll-snap-align: start;
}

.interlude-svg {
    margin-bottom: 32px;
    max-width: 240px;
    height: auto;
}

.interlude-verse em {
    font-family: var(--serif-display);
    font-style: italic;
    font-weight: 400;
    color: var(--foxglove);
    font-size: 22px;
    line-height: 1.7;
    letter-spacing: 0.01em;
}

/* ---------- COLOPHON ---------- */
.colophon {
    text-align: center;
    align-items: center;
    justify-content: center;
    padding: 56px 36px 48px;
    transition: opacity 4000ms ease, color 4000ms ease;
    opacity: 0.05;
    color: var(--ink-coal);
}

.colophon.lit {
    opacity: 1;
    color: var(--bone-candle);
}

.colophon .monogram { margin-bottom: 24px; }

.colophon-title {
    font-family: var(--serif-display);
    font-weight: 900;
    font-size: clamp(1.8rem, 2.4vw, 2.4rem);
    letter-spacing: -0.015em;
    margin-bottom: 18px;
    color: inherit;
}

.colophon-text {
    font-family: var(--serif-body);
    font-size: 17px;
    line-height: 1.7;
    max-width: 32em;
    color: inherit;
    margin: 0 auto 22px;
}
.colophon-text em { color: var(--foxglove); font-family: var(--serif-display); font-style: italic; }
.colophon-text .mono { font-family: var(--type-mono); font-size: 14px; color: var(--harvest-moon); }

.colophon-sign .mono {
    font-family: var(--type-mono);
    font-size: 12px;
    color: var(--dust-rail);
    letter-spacing: 0.1em;
}

/* ---------- TYPEWRITER REVEAL ---------- */
[data-typewriter] [data-text] {
    color: transparent;
    position: relative;
}
[data-typewriter] [data-text].typing,
[data-typewriter] [data-text].typed {
    color: inherit;
}

[data-typewriter] [data-text].typing::after {
    content: "";
    display: inline-block;
    width: 0.55em;
    height: 0.95em;
    background: var(--chalk-strike);
    vertical-align: -0.05em;
    margin-left: 1px;
    animation: blink 1060ms steps(1, end) infinite;
}

/* ---------- SCROLLBAR ---------- */
::-webkit-scrollbar { width: 8px; background: var(--ink-coal); }
::-webkit-scrollbar-thumb { background: var(--oxblood); }
::-webkit-scrollbar-thumb:hover { background: var(--dust-rail); }

/* ---------- SELECTION ---------- */
::selection { background: var(--foxglove); color: var(--bone-candle); }

/* ---------- REDUCED MOTION ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
    .caret { animation: none; opacity: 1; }
    [data-typewriter] [data-text] { color: inherit; }
}