/* ==========================================================================
   showa.boo — Phosphor & Paper
   Showa-era magazine spread / CRT-VHS analog media stylesheet
   Fonts: Bebas Neue (Google Fonts), IBM Plex Sans (Google Fonts), IBM Plex Mono (Google Fonts)
   ========================================================================== */

:root {
    /* Palette */
    --c-deep: #1A1612;
    --c-deep-cool: #2A3040;
    --c-paper: #F2E6D0;
    --c-text-dark: #D4C8B0;
    --c-vermillion: #C85A3A;
    --c-amber: #D4A04A;
    --c-teal: #4A6B7A;
    --c-scan: #2A2420;
    --c-rule: #6B5E50;
    --c-ink: #2A2420;

    /* Typography */
    --f-display: "Bebas Neue", "Oswald", sans-serif;
    --f-body: "IBM Plex Sans", system-ui, sans-serif;
    --f-mono: "IBM Plex Mono", "Menlo", monospace;
    --f-jp: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", serif;
}

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

html, body {
    background: var(--c-deep);
    color: var(--c-text-dark);
    font-family: var(--f-body);
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

body { min-height: 100vh; }

.svg-defs { position: absolute; width: 0; height: 0; }

/* --------------------------------------------------------------------------
   Persistent overlays — CRT scanlines, film grain, vignette
   -------------------------------------------------------------------------- */

.crt-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 200;
    background-image: repeating-linear-gradient(
        to bottom,
        rgba(42, 36, 32, 0.28) 0,
        rgba(42, 36, 32, 0.28) 2px,
        transparent 2px,
        transparent 4px
    );
    mix-blend-mode: multiply;
    opacity: 0.55;
}

.film-grain {
    position: fixed;
    inset: -10%;
    pointer-events: none;
    z-index: 201;
    background-color: transparent;
    backdrop-filter: contrast(1) brightness(1);
    filter: url(#noise-filter);
    opacity: 0.06;
    animation: grainShift 0.9s steps(3) infinite;
    mix-blend-mode: overlay;
}

@keyframes grainShift {
    0%   { transform: translate(0, 0); }
    33%  { transform: translate(-2%, 1.5%); }
    66%  { transform: translate(1.5%, -1%); }
    100% { transform: translate(0, 0); }
}

.vignette {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 199;
    background: radial-gradient(ellipse at center,
        transparent 55%,
        rgba(26, 22, 18, 0.55) 100%);
    mix-blend-mode: multiply;
}

/* --------------------------------------------------------------------------
   Channel selector navigation
   -------------------------------------------------------------------------- */

.channel-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 300;
    background: #1A1A1A; /* Showa channel-selector strip */
    border-bottom: 1px solid var(--c-rule);
    box-shadow: 0 0 0 1px rgba(200, 90, 58, 0.05);
}

.channel-bar__inner {
    display: flex;
    align-items: center;
    gap: 1.4rem;
    padding: 0.55rem 1.6rem;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    color: var(--c-text-dark);
    text-transform: uppercase;
}

.channel-bar__label {
    color: var(--c-vermillion);
    font-weight: 500;
}

.channel-bar__list {
    display: flex;
    list-style: none;
    gap: 0;
}

.channel-bar__item {
    display: flex;
    align-items: baseline;
    gap: 0.4rem;
    padding: 0.15rem 0.9rem;
    border-right: 1px solid rgba(107, 94, 80, 0.5);
    cursor: pointer;
    transition: color 80ms steps(2), background 80ms steps(2);
    color: rgba(212, 200, 176, 0.6);
}

.channel-bar__item:first-child { border-left: 1px solid rgba(107, 94, 80, 0.5); }

.channel-bar__item:hover {
    color: var(--c-text-dark);
    background: rgba(200, 90, 58, 0.06);
}

.channel-bar__item.is-active {
    color: var(--c-amber);
    text-shadow: 0 0 8px rgba(212, 160, 74, 0.55);
    background: rgba(212, 160, 74, 0.06);
}

.channel-bar__item.is-active .ch-num {
    color: var(--c-amber);
}

.ch-num {
    font-weight: 500;
    color: var(--c-vermillion);
}

.ch-name {
    font-size: 10px;
    opacity: 0.85;
}

.channel-bar__signal {
    margin-left: auto;
    color: var(--c-rule);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.signal-blip {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--c-vermillion);
    border-radius: 50%;
    animation: blip 1.2s steps(2, end) infinite;
}

@keyframes blip {
    0%, 49% { opacity: 1; box-shadow: 0 0 6px var(--c-vermillion); }
    50%, 100% { opacity: 0.15; box-shadow: none; }
}

/* --------------------------------------------------------------------------
   Reel & spreads (each section = 100vh magazine spread)
   -------------------------------------------------------------------------- */

.reel { position: relative; }

.spread {
    position: relative;
    min-height: 100vh;
    width: 100%;
    padding: 5rem 3.2rem 2.8rem;
    overflow: hidden;
    isolation: isolate;
}

@media (max-width: 760px) {
    .spread { padding: 5rem 1.4rem 2rem; }
}

/* Crop marks at section corners */
.crop {
    position: absolute;
    width: 22px;
    height: 22px;
    pointer-events: none;
    opacity: 0.7;
}
.crop::before, .crop::after {
    content: "";
    position: absolute;
    background: var(--c-vermillion);
}
.crop::before { left: 0; right: 0; height: 1px; top: 50%; }
.crop::after { top: 0; bottom: 0; width: 1px; left: 50%; }

.crop--tl { top: 1.6rem; left: 1.6rem; }
.crop--tr { top: 1.6rem; right: 1.6rem; }
.crop--bl { bottom: 1.6rem; left: 1.6rem; }
.crop--br { bottom: 1.6rem; right: 1.6rem; }

.crop--dark::before, .crop--dark::after { background: var(--c-vermillion); }

/* Frame numbers at corners */
.frame-num {
    position: absolute;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--c-rule);
    text-transform: uppercase;
    z-index: 10;
}
.frame-num--tl { top: 4.5rem; left: 1.6rem; }
.frame-num--tr { top: 4.5rem; right: 1.6rem; text-align: right; }
.frame-num--dark { color: var(--c-rule); }

/* --------------------------------------------------------------------------
   SPREAD 1 — COVER
   -------------------------------------------------------------------------- */

.spread--cover {
    background:
        radial-gradient(circle at 18% 28%, rgba(74, 107, 122, 0.18), transparent 55%),
        radial-gradient(circle at 82% 88%, rgba(200, 90, 58, 0.10), transparent 60%),
        var(--c-deep);
}

.cover-grid {
    position: relative;
    display: grid;
    grid-template-columns: 36px 1fr 1fr;
    grid-template-rows: 1fr auto;
    gap: 2.2rem 2.4rem;
    height: calc(100vh - 7.8rem);
    min-height: 600px;
}

.cover-photo {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
    align-self: start;
    width: 100%;
    aspect-ratio: 4 / 3;
    max-height: 56vh;
    background:
        linear-gradient(135deg, #1A1612 0%, #2A3040 60%, #4A6B7A 100%);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--c-rule);
}

.cover-photo__inner {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 70% 35%, rgba(212, 160, 74, 0.35), transparent 45%),
        radial-gradient(ellipse at 25% 80%, rgba(200, 90, 58, 0.30), transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(74, 107, 122, 0.18), transparent 70%);
}

.cover-photo__halftone {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at center, rgba(0,0,0,0.55) 22%, transparent 24%);
    background-size: 8px 8px;
    mix-blend-mode: multiply;
    opacity: 0.45;
}

.cover-photo__scan {
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        to bottom,
        rgba(0,0,0,0.18) 0,
        rgba(0,0,0,0.18) 1px,
        transparent 1px,
        transparent 3px
    );
    mix-blend-mode: multiply;
}

.cover-photo__caption {
    position: absolute;
    left: 0.9rem;
    bottom: 0.7rem;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--c-amber);
    text-transform: uppercase;
    background: rgba(26, 22, 18, 0.6);
    padding: 0.2rem 0.5rem;
    border: 1px solid rgba(212, 160, 74, 0.4);
}

.cover-sidebar {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
    position: relative;
    border-right: 1px solid rgba(107, 94, 80, 0.5);
    padding-right: 0.6rem;
}

.vertical-jp {
    position: absolute;
    top: 0;
    left: 0;
    writing-mode: vertical-rl;
    font-family: var(--f-jp);
    font-size: 14px;
    letter-spacing: 0.18em;
    color: var(--c-rule);
    opacity: 0.4;
    line-height: 1.4;
}

.vertical-jp--alt {
    top: auto;
    bottom: 0;
    left: auto;
    right: 0.4rem;
    color: var(--c-vermillion);
    opacity: 0.45;
    font-size: 13px;
}

.cover-meta {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
    align-self: end;
    border-top: 1px solid var(--c-rule);
    padding-top: 0.7rem;
}

.dateline {
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--c-vermillion);
    margin-bottom: 0.4rem;
}

.kicker {
    font-family: var(--f-body);
    font-size: 13px;
    line-height: 1.45;
    color: var(--c-text-dark);
    opacity: 0.85;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    max-width: 28ch;
}

.cover-title {
    grid-column: 3 / 4;
    grid-row: 1 / 3;
    align-self: end;
    text-align: right;
    position: relative;
}

.display-title {
    font-family: var(--f-display);
    font-size: clamp(72px, 14vw, 200px);
    font-weight: 400;
    line-height: 0.85;
    letter-spacing: 0.04em;
    color: var(--c-paper);
    text-shadow:
        0 0 1px rgba(242, 230, 208, 0.4),
        0 0 24px rgba(212, 160, 74, 0.15);
    margin-bottom: 0.3rem;
}

.display-sub {
    font-family: var(--f-mono);
    font-size: 26px;
    color: var(--c-vermillion);
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
}

.dot-divider { color: var(--c-amber); margin: 0 0.4rem; }

.cover-tagline {
    font-family: var(--f-mono);
    font-size: 12px;
    letter-spacing: 0.18em;
    color: var(--c-text-dark);
    text-transform: uppercase;
    opacity: 0.85;
    border-top: 1px solid var(--c-rule);
    padding-top: 0.6rem;
    margin-top: 0.4rem;
}

.cover-barcode {
    position: absolute;
    bottom: 1.5rem;
    right: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.3rem;
    z-index: 5;
}

.barcode-bars {
    width: 110px;
    height: 26px;
    background: repeating-linear-gradient(
        to right,
        var(--c-paper) 0, var(--c-paper) 1px,
        transparent 1px, transparent 3px,
        var(--c-paper) 3px, var(--c-paper) 5px,
        transparent 5px, transparent 6px,
        var(--c-paper) 6px, var(--c-paper) 7px,
        transparent 7px, transparent 10px
    );
    opacity: 0.85;
}

.barcode-num {
    font-family: var(--f-mono);
    font-size: 10px;
    color: var(--c-text-dark);
    letter-spacing: 0.1em;
}

@media (max-width: 900px) {
    .cover-grid {
        grid-template-columns: 24px 1fr;
        grid-template-rows: auto auto auto;
        height: auto;
        min-height: calc(100vh - 7.8rem);
    }
    .cover-photo { grid-column: 2 / 3; grid-row: 1; max-height: 38vh; }
    .cover-sidebar { grid-column: 1 / 2; grid-row: 1 / 4; }
    .cover-meta { grid-column: 2 / 3; grid-row: 2; }
    .cover-title { grid-column: 2 / 3; grid-row: 3; text-align: left; }
    .cover-barcode { position: relative; bottom: auto; right: auto; align-items: flex-start; margin-top: 1rem; }
}

/* --------------------------------------------------------------------------
   SPREAD 2 — FEATURE ARTICLE (paper)
   -------------------------------------------------------------------------- */

.spread--feature {
    background-color: var(--c-paper);
    color: var(--c-ink);
    background-image:
        radial-gradient(circle at 18% 92%, rgba(200, 90, 58, 0.06), transparent 50%),
        radial-gradient(circle at 88% 8%, rgba(212, 160, 74, 0.07), transparent 50%);
}

.spread--feature .frame-num--dark { color: var(--c-rule); }
.spread--feature .crop--dark::before,
.spread--feature .crop--dark::after { background: var(--c-vermillion); }

.feature-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1.2rem 1.4rem;
    padding-top: 1.5rem;
    min-height: calc(100vh - 7.8rem);
    align-content: start;
}

.feature-header {
    grid-column: 2 / 7;
    margin-bottom: 0.8rem;
}

.section-eyebrow {
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--c-vermillion);
    margin-bottom: 0.6rem;
}

.section-title {
    font-family: var(--f-display);
    font-size: clamp(56px, 8.4vw, 120px);
    line-height: 0.88;
    letter-spacing: 0.04em;
    font-weight: 400;
    color: var(--c-ink);
    text-transform: uppercase;
}

.section-title--dark { color: var(--c-ink); }
.section-title--small { font-size: clamp(44px, 6vw, 84px); }

.section-deck {
    margin-top: 0.9rem;
    font-family: var(--f-body);
    font-size: 15px;
    line-height: 1.5;
    color: #4A3F33;
    max-width: 32ch;
    font-style: italic;
}

.feature-body {
    grid-column: 2 / 6;
    font-family: var(--f-body);
    font-size: 15px;
    line-height: 1.65;
    color: var(--c-ink);
}

.feature-body p { margin-bottom: 0.85rem; }

.byline {
    font-family: var(--f-mono);
    font-size: 11px !important;
    letter-spacing: 0.12em;
    color: var(--c-vermillion);
    text-transform: uppercase;
    border-top: 1px solid rgba(107, 94, 80, 0.4);
    border-bottom: 1px solid rgba(107, 94, 80, 0.4);
    padding: 0.4rem 0;
    margin-bottom: 0.9rem !important;
}

.dropcap .drop {
    float: left;
    font-family: var(--f-display);
    font-size: 78px;
    line-height: 0.85;
    color: var(--c-vermillion);
    margin: 4px 8px -2px 0;
    letter-spacing: 0;
}

.feature-body em { font-style: italic; color: var(--c-vermillion); }

.pullquote {
    font-family: var(--f-display);
    font-size: 26px !important;
    line-height: 1.1 !important;
    color: var(--c-vermillion);
    border-top: 2px solid var(--c-vermillion);
    border-bottom: 2px solid var(--c-vermillion);
    padding: 0.7rem 0;
    margin: 0.9rem 0 !important;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

/* Collage of overlapping pattern frames */
.feature-collage {
    grid-column: 7 / 13;
    grid-row: 1 / 3;
    position: relative;
    min-height: 440px;
}

.collage-frame {
    position: absolute;
    border: 1px solid var(--c-ink);
    background: var(--c-paper);
    overflow: hidden;
    box-shadow: 4px 4px 0 0 rgba(42, 36, 32, 0.18);
    transform-origin: center;
    transition: transform 180ms cubic-bezier(0.9, 0.0, 1.0, 1.0),
                box-shadow 180ms steps(2);
}

.collage-frame:hover {
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0 0 rgba(42, 36, 32, 0.28);
}

.collage-frame--a { top: 4%;  left: 4%;  width: 52%; height: 44%; transform: rotate(-1.2deg); z-index: 3; }
.collage-frame--b { top: 26%; left: 38%; width: 48%; height: 40%; transform: rotate(1.4deg);  z-index: 4; }
.collage-frame--c { top: 50%; left: 8%;  width: 56%; height: 36%; transform: rotate(-0.6deg); z-index: 2; }
.collage-frame--d { top: 54%; left: 56%; width: 38%; height: 38%; transform: rotate(2deg);    z-index: 5; }

.pat { position: absolute; inset: 0; }

.pat--halftone {
    background-color: var(--c-paper);
    background-image: radial-gradient(circle, var(--c-vermillion) 30%, transparent 32%);
    background-size: 12px 12px;
    opacity: 0.55;
}

.pat--diagonal {
    background-color: var(--c-paper);
    background-image: repeating-linear-gradient(
        45deg,
        var(--c-ink) 0,
        var(--c-ink) 2px,
        transparent 2px,
        transparent 8px
    );
    opacity: 0.55;
}

.pat--scanline {
    background-color: var(--c-deep);
    background-image: repeating-linear-gradient(
        to bottom,
        rgba(212, 160, 74, 0.55) 0,
        rgba(212, 160, 74, 0.55) 2px,
        transparent 2px,
        transparent 4px
    );
}

.pat--dot {
    background-color: var(--c-amber);
    background-image: radial-gradient(circle, var(--c-ink) 24%, transparent 26%);
    background-size: 10px 10px;
    opacity: 0.85;
}

.collage-tag {
    position: absolute;
    top: 6px;
    right: 8px;
    font-family: var(--f-mono);
    font-size: 11px;
    color: var(--c-paper);
    background: var(--c-ink);
    padding: 1px 5px;
    letter-spacing: 0.08em;
}

.collage-frame--a .collage-tag,
.collage-frame--d .collage-tag { background: var(--c-vermillion); }

.collage-cap {
    position: absolute;
    bottom: 6px;
    left: 8px;
    font-family: var(--f-mono);
    font-size: 10px;
    color: var(--c-paper);
    background: var(--c-ink);
    padding: 1px 5px;
    letter-spacing: 0.1em;
}

.feature-rule {
    grid-column: 1 / 13;
    height: 1px;
    background: var(--c-vermillion);
    margin-top: 1rem;
}

.feature-footer {
    grid-column: 1 / 13;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--c-vermillion);
    text-align: right;
    margin-top: 0.4rem;
}

@media (max-width: 900px) {
    .feature-grid { grid-template-columns: 1fr; }
    .feature-header, .feature-body, .feature-collage { grid-column: 1 / 2; }
    .feature-collage { min-height: 360px; margin-top: 1rem; }
}

/* --------------------------------------------------------------------------
   SPREAD 3 — PHOTO ESSAY (contact sheet)
   -------------------------------------------------------------------------- */

.spread--photo {
    background-color: var(--c-deep);
    background-image:
        radial-gradient(circle at 50% 50%, rgba(212, 160, 74, 0.04), transparent 60%);
}

.photo-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-template-rows: repeat(8, 1fr);
    gap: 1rem;
    height: calc(100vh - 9.5rem);
    min-height: 540px;
    margin-top: 0.4rem;
}

.photo {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--c-rule);
    background: #0E0B09;
    transition: filter 200ms steps(3);
}

.photo--01 { grid-column: 1 / 6;  grid-row: 1 / 5; }
.photo--02 { grid-column: 6 / 10; grid-row: 1 / 4; }
.photo--03 { grid-column: 10 / 13; grid-row: 1 / 6; }
.photo--04 { grid-column: 1 / 5;  grid-row: 5 / 9; }
.photo--05 { grid-column: 5 / 13; grid-row: 4 / 9; }

.photo__inner {
    position: absolute;
    inset: 0;
    transition: transform 180ms cubic-bezier(0.9, 0.0, 1.0, 1.0);
}

.photo__inner--ember {
    background:
        radial-gradient(ellipse at 60% 40%, rgba(212, 160, 74, 0.85), transparent 55%),
        radial-gradient(ellipse at 30% 80%, rgba(200, 90, 58, 0.70), transparent 50%),
        linear-gradient(135deg, #2A1A12 0%, #1A1612 100%);
}
.photo__inner--teal {
    background:
        radial-gradient(ellipse at 50% 50%, rgba(74, 107, 122, 0.85), transparent 60%),
        linear-gradient(180deg, #1A2030 0%, #0E0B09 100%);
}
.photo__inner--amber {
    background:
        radial-gradient(circle at 25% 30%, rgba(242, 230, 208, 0.4), transparent 40%),
        radial-gradient(ellipse at 70% 70%, rgba(212, 160, 74, 0.95), transparent 60%),
        linear-gradient(135deg, #3A2810 0%, #1A1612 100%);
}
.photo__inner--vermillion {
    background:
        radial-gradient(ellipse at 50% 60%, rgba(200, 90, 58, 0.95), transparent 55%),
        radial-gradient(ellipse at 80% 20%, rgba(212, 160, 74, 0.45), transparent 40%),
        linear-gradient(180deg, #2A1612 0%, #1A1612 100%);
}
.photo__inner--dusk {
    background:
        radial-gradient(ellipse at 40% 75%, rgba(74, 107, 122, 0.50), transparent 60%),
        radial-gradient(ellipse at 70% 25%, rgba(212, 160, 74, 0.40), transparent 50%),
        radial-gradient(ellipse at 20% 30%, rgba(200, 90, 58, 0.30), transparent 50%),
        linear-gradient(180deg, #2A3040 0%, #1A1612 100%);
}

.photo__noise {
    position: absolute;
    inset: 0;
    background-image:
        repeating-linear-gradient(to bottom,
            rgba(0,0,0,0.12) 0, rgba(0,0,0,0.12) 1px,
            transparent 1px, transparent 3px),
        radial-gradient(circle, rgba(0,0,0,0.35) 22%, transparent 24%);
    background-size: auto, 6px 6px;
    mix-blend-mode: multiply;
    opacity: 0.55;
}

.photo__corner {
    position: absolute;
    width: 14px;
    height: 14px;
    pointer-events: none;
    z-index: 3;
}
.photo__corner::before,
.photo__corner::after {
    content: "";
    position: absolute;
    background: var(--c-amber);
}
.photo__corner::before { width: 14px; height: 1px; top: 0; left: 0; }
.photo__corner::after  { width: 1px; height: 14px; top: 0; left: 0; }
.photo__corner--tl { top: 6px; left: 6px; }
.photo__corner--tr { top: 6px; right: 6px; transform: scaleX(-1); }
.photo__corner--bl { bottom: 6px; left: 6px; transform: scaleY(-1); }
.photo__corner--br { bottom: 6px; right: 6px; transform: scale(-1, -1); }

.photo figcaption {
    position: absolute;
    bottom: 8px;
    left: 10px;
    right: 10px;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--c-paper);
    text-transform: uppercase;
    text-shadow: 0 0 4px rgba(0,0,0,0.6);
    z-index: 4;
}

.photo__num { color: var(--c-amber); }

/* VHS hover: tracking distortion + color-channel separation */
.photo:hover .photo__inner {
    animation: vhsTrack 220ms steps(4, end);
}
.photo:hover figcaption {
    animation: vhsTextShake 220ms steps(4, end);
}

@keyframes vhsTrack {
    0%   { transform: translateX(0); filter: hue-rotate(0deg); }
    25%  { transform: translateX(7px); filter: hue-rotate(8deg) saturate(1.4); }
    50%  { transform: translateX(-5px); filter: hue-rotate(-10deg) saturate(0.9); }
    75%  { transform: translateX(3px); filter: hue-rotate(4deg); }
    100% { transform: translateX(0); filter: hue-rotate(0deg); }
}

@keyframes vhsTextShake {
    0%   { text-shadow: 0 0 4px rgba(0,0,0,0.6); transform: translateX(0); }
    25%  { text-shadow: 2px 0 0 var(--c-vermillion), -2px 0 0 var(--c-teal); transform: translateX(2px); }
    50%  { text-shadow: -2px 0 0 var(--c-vermillion), 2px 0 0 var(--c-teal); transform: translateX(-2px); }
    75%  { text-shadow: 1px 0 0 var(--c-vermillion), -1px 0 0 var(--c-teal); transform: translateX(1px); }
    100% { text-shadow: 0 0 4px rgba(0,0,0,0.6); transform: translateX(0); }
}

.photo-meta {
    margin-top: 0.9rem;
    display: flex;
    gap: 0.8rem;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    color: var(--c-rule);
    text-transform: uppercase;
}

.photo-meta span:nth-child(odd) { color: var(--c-text-dark); }

@media (max-width: 760px) {
    .photo-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(5, 1fr);
        height: auto;
        min-height: 720px;
    }
    .photo--01 { grid-column: 1 / 3; grid-row: 1 / 2; }
    .photo--02 { grid-column: 1 / 2; grid-row: 2 / 3; }
    .photo--03 { grid-column: 2 / 3; grid-row: 2 / 3; }
    .photo--04 { grid-column: 1 / 2; grid-row: 3 / 4; }
    .photo--05 { grid-column: 2 / 3; grid-row: 3 / 4; }
}

/* --------------------------------------------------------------------------
   SPREAD 4 — BACK MATTER (classifieds)
   -------------------------------------------------------------------------- */

.spread--back {
    background-color: var(--c-paper);
    color: var(--c-ink);
    padding-bottom: 4rem;
}

.back-header {
    margin-top: 1rem;
    margin-bottom: 1.4rem;
    border-bottom: 2px solid var(--c-vermillion);
    padding-bottom: 0.9rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 2rem;
    flex-wrap: wrap;
}

.back-deck {
    font-family: var(--f-body);
    font-size: 13px;
    line-height: 1.5;
    color: var(--c-rule);
    max-width: 36ch;
    font-style: italic;
}

.back-columns {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0;
    border-top: 1px solid var(--c-rule);
    border-bottom: 1px solid var(--c-rule);
}

.back-col {
    padding: 1rem 1.3rem;
    border-right: 1px solid var(--c-vermillion);
    font-family: var(--f-body);
    font-size: 14px;
    line-height: 1.55;
    color: var(--c-ink);
}

.back-col:last-child { border-right: none; }

.col-head {
    font-family: var(--f-display);
    font-size: 24px;
    font-weight: 400;
    letter-spacing: 0.06em;
    color: var(--c-vermillion);
    margin-bottom: 0.7rem;
    border-bottom: 1px solid var(--c-rule);
    padding-bottom: 0.3rem;
}

.back-col p { margin-bottom: 0.55rem; }
.back-col em { font-style: italic; color: var(--c-vermillion); }

.col-num {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: 11px;
    color: var(--c-vermillion);
    letter-spacing: 0.08em;
    margin-right: 0.4rem;
    min-width: 1.6em;
}

.back-footer {
    margin-top: 2rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.55rem;
}

/* Ghost Channel — recurring 4:3 dead-channel TV motif */
.ghost-channel {
    position: relative;
    width: 120px;
    height: 90px;
    border: 2px solid var(--c-rule);
    border-radius: 8px;
    background: #0E0B09;
    overflow: hidden;
    box-shadow:
        inset 0 0 14px rgba(0,0,0,0.7),
        0 4px 0 rgba(0,0,0,0.15);
    margin-bottom: 0.5rem;
}

.ghost-channel__static {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle, rgba(242, 230, 208, 0.6) 18%, transparent 20%),
        radial-gradient(circle, rgba(212, 200, 176, 0.4) 15%, transparent 17%);
    background-size: 3px 3px, 5px 5px;
    background-position: 0 0, 1px 2px;
    animation: staticShift 110ms steps(4) infinite;
    opacity: 0.85;
}

.ghost-channel__scan {
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        to bottom,
        rgba(0,0,0,0.4) 0,
        rgba(0,0,0,0.4) 1px,
        transparent 1px,
        transparent 3px
    );
}

.ghost-channel__bezel {
    position: absolute;
    inset: 0;
    pointer-events: none;
    border-radius: 6px;
    background:
        radial-gradient(ellipse at center, transparent 60%, rgba(0,0,0,0.7) 100%);
}

.ghost-channel__label {
    position: absolute;
    bottom: 4px;
    left: 0;
    right: 0;
    text-align: center;
    font-family: var(--f-mono);
    font-size: 9px;
    color: var(--c-amber);
    letter-spacing: 0.14em;
    text-shadow: 0 0 4px rgba(212, 160, 74, 0.6);
    z-index: 3;
}

@keyframes staticShift {
    0%   { background-position: 0 0, 1px 2px; }
    25%  { background-position: 1px 1px, 2px 0; }
    50%  { background-position: 2px 2px, 0 1px; }
    75%  { background-position: 0 1px, 1px 2px; }
    100% { background-position: 1px 0, 2px 1px; }
}

.back-sign {
    font-family: var(--f-display);
    font-size: 48px;
    font-weight: 400;
    letter-spacing: 0.06em;
    color: var(--c-ink);
    line-height: 1;
}

.back-sign__dot { color: var(--c-vermillion); }

.back-tag {
    font-family: var(--f-mono);
    font-size: 13px;
    letter-spacing: 0.14em;
    color: var(--c-vermillion);
    text-transform: uppercase;
}

.colophon {
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    color: var(--c-rule);
    text-transform: uppercase;
    margin-top: 0.6rem;
}

@media (max-width: 760px) {
    .back-columns { grid-template-columns: 1fr; }
    .back-col { border-right: none; border-bottom: 1px solid var(--c-vermillion); }
    .back-col:last-child { border-bottom: none; }
}

/* --------------------------------------------------------------------------
   Scroll-reveal animation states (set by script.js)
   -------------------------------------------------------------------------- */

.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 360ms steps(6), transform 360ms cubic-bezier(0.9, 0.0, 1.0, 1.0);
}

.reveal--left { transform: translateX(-40px); }
.reveal--right { transform: translateX(40px); }

.reveal.is-in {
    opacity: 1;
    transform: translate(0, 0);
}

.collage-frame.reveal {
    opacity: 0;
    /* preserve rotation while animating in */
    transition: opacity 320ms steps(5), transform 320ms cubic-bezier(0.9, 0.0, 1.0, 1.0);
}

.collage-frame--a.reveal { transform: rotate(-1.2deg) scale(0.92); }
.collage-frame--b.reveal { transform: rotate(1.4deg) scale(0.92); }
.collage-frame--c.reveal { transform: rotate(-0.6deg) scale(0.92); }
.collage-frame--d.reveal { transform: rotate(2deg) scale(0.92); }

.collage-frame--a.reveal.is-in { transform: rotate(-1.2deg) scale(1); opacity: 1; }
.collage-frame--b.reveal.is-in { transform: rotate(1.4deg) scale(1); opacity: 1; }
.collage-frame--c.reveal.is-in { transform: rotate(-0.6deg) scale(1); opacity: 1; }
.collage-frame--d.reveal.is-in { transform: rotate(2deg) scale(1); opacity: 1; }

/* VHS glitch class toggled by JS on channel-switch */
.vhs-glitch {
    animation: vhsGlitch 280ms steps(5);
}

@keyframes vhsGlitch {
    0%   { transform: translateX(0); filter: hue-rotate(0); }
    20%  { transform: translateX(-6px); filter: hue-rotate(12deg) saturate(1.4); }
    40%  { transform: translateX(8px); filter: hue-rotate(-10deg); }
    60%  { transform: translateX(-3px); filter: hue-rotate(6deg); }
    80%  { transform: translateX(2px); filter: hue-rotate(0); }
    100% { transform: translateX(0); filter: none; }
}