/* renai.stream — Scholar Archive Dashboard */
/* Design: Triptych Layout, Bebas Neue / Cinzel / Lora / Space Mono */

/* ================================================================
   BASE & VARIABLES
   ================================================================ */

:root {
    --parchment:     #F5F0E8;
    --ghost-white:   #F9F7F5;
    --dusty-rose:    #E8C4C0;
    --pale-slate:    #C4CDD8;
    --antique-gold:  #C9A84C;
    --deep-ink:      #2C2820;
    --glitch-cyan:   #A8E6E8;
    --glitch-crimson:#E8A0A8;
    --muted-lavender:#D4C8E0;
    --faded-verdigris:#9BBDB5;
    --faded-rose:    #E8A0A8;

    --col-spine:     18%;
    --col-center:    55%;
    --col-margin:    27%;

    --font-display:  'Bebas Neue', sans-serif;
    --font-cinzel:   'Cinzel', serif;
    --font-lora:     'Lora', serif;
    --font-mono:     'Space Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--parchment);
    background-image: radial-gradient(ellipse at 50% 40%, var(--ghost-white) 0%, var(--parchment) 60%);
    color: var(--deep-ink);
    font-family: var(--font-lora);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ================================================================
   BACKGROUND GEOMETRY
   ================================================================ */

.bg-geometry {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.geo-large {
    position: absolute;
    top: -60px;
    left: -80px;
    width: 400px;
    height: 400px;
    opacity: 0;
    transform: scale(0.8);
    animation:
        geo-fade-in 2000ms ease-out 400ms forwards,
        drift 120s linear 2400ms infinite;
}

.geo-medium {
    position: absolute;
    bottom: -40px;
    right: -60px;
    width: 280px;
    height: 280px;
    opacity: 0;
    transform: scale(0.8);
    animation:
        geo-fade-in 2000ms ease-out 600ms forwards,
        drift-reverse 140s linear 2600ms infinite;
}

.geo-small {
    position: absolute;
    top: 40%;
    right: 20%;
    width: 160px;
    height: 160px;
    opacity: 0;
    transform: scale(0.8);
    animation:
        geo-fade-in 2000ms ease-out 800ms forwards,
        drift 160s linear 2800ms infinite;
}

@keyframes geo-fade-in {
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes drift {
    0%   { transform: rotate(0deg) scale(1); }
    100% { transform: rotate(360deg) scale(1); }
}

@keyframes drift-reverse {
    0%   { transform: rotate(0deg) scale(1); }
    100% { transform: rotate(-360deg) scale(1); }
}

.geo-rotate {
    transform-origin: center center;
    animation: drift 120s linear infinite;
}

.geo-rotate-reverse {
    transform-origin: center center;
    animation: drift-reverse 140s linear infinite;
}

/* Scanline sweep */
.scanline {
    position: absolute;
    left: 0;
    top: -2px;
    width: 100%;
    height: 1px;
    background: var(--glitch-cyan);
    opacity: 0;
    pointer-events: none;
}

/* ================================================================
   BOOK HEADER — Running Title
   ================================================================ */

.book-header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 32px;
    background: rgba(245, 240, 232, 0.92);
    backdrop-filter: blur(4px);
    border-bottom: 0.5px solid var(--antique-gold);
    transform: translateY(-100%);
    animation: header-reveal 600ms ease-out 300ms forwards;
}

@keyframes header-reveal {
    to { transform: translateY(0); }
}

.header-domain {
    font-family: var(--font-display);
    font-size: 22px;
    letter-spacing: 0.15em;
    color: var(--deep-ink);
    cursor: default;
}

.header-chapter {
    display: flex;
    gap: 16px;
    align-items: center;
}

.chapter-label {
    font-family: var(--font-cinzel);
    font-size: 10px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--antique-gold);
}

.chapter-title {
    font-family: var(--font-lora);
    font-size: 13px;
    font-style: italic;
    color: var(--faded-verdigris);
}

.folio-meta {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--pale-slate);
    letter-spacing: 0.05em;
}

/* ================================================================
   MAIN TRIPTYCH LAYOUT
   ================================================================ */

.triptych {
    display: grid;
    grid-template-columns: var(--col-spine) var(--col-center) var(--col-margin);
    min-height: calc(100vh - 52px);
    position: relative;
    z-index: 1;
}

/* ================================================================
   LEFT SPINE COLUMN
   ================================================================ */

.spine-column {
    position: sticky;
    top: 52px;
    height: calc(100vh - 52px);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px 12px 24px;
    border-right: 0.5px solid var(--pale-slate);
    background: rgba(245, 240, 232, 0.85);
    overflow: hidden;
    transform: translateX(-20px);
    opacity: 0;
    animation: spine-reveal 800ms ease-out 200ms forwards;
}

@keyframes spine-reveal {
    to { transform: translateX(0); opacity: 1; }
}

.spine-ornament {
    margin-bottom: 32px;
    opacity: 0.7;
}

.spine-nav {
    display: flex;
    flex-direction: column;
    gap: 0;
    width: 100%;
    flex: 1;
}

.spine-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 8px;
    text-decoration: none;
    border-bottom: 0.5px solid rgba(196, 205, 216, 0.4);
    transition: background 200ms, border-color 200ms;
    position: relative;
}

.spine-item:hover,
.spine-item.active {
    background: rgba(201, 168, 76, 0.06);
}

.spine-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--antique-gold);
}

.spine-num {
    font-family: var(--font-lora);
    font-style: italic;
    font-size: 12px;
    color: var(--antique-gold);
    margin-bottom: 8px;
}

.spine-label {
    font-family: var(--font-cinzel);
    font-size: 9px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--deep-ink);
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    opacity: 0.75;
}

.spine-item.active .spine-label {
    color: var(--antique-gold);
    opacity: 1;
}

.spine-item:hover .spine-label {
    opacity: 1;
}

/* Ribbon markers */
.spine-ribbon {
    position: absolute;
    left: 0;
    width: 2px;
    border-radius: 0 1px 1px 0;
}

.ribbon-gold {
    top: 10%;
    height: 15%;
    background: var(--antique-gold);
    opacity: 0.6;
}

.ribbon-slate {
    top: 40%;
    height: 10%;
    background: var(--pale-slate);
    opacity: 0.5;
}

.ribbon-lavender {
    top: 65%;
    height: 12%;
    background: var(--muted-lavender);
    opacity: 0.5;
}

.spine-catalog {
    margin-top: auto;
    padding-top: 16px;
}

.catalog-num {
    font-family: var(--font-mono);
    font-size: 8px;
    color: var(--pale-slate);
    letter-spacing: 0.05em;
    writing-mode: vertical-rl;
    transform: rotate(180deg);
}

/* ================================================================
   CENTER READING SURFACE
   ================================================================ */

.reading-surface {
    padding: 0;
    overflow-y: auto;
    scroll-snap-type: y mandatory;
    opacity: 0;
    transform: translateY(15px);
    animation: reading-reveal 900ms ease-out 400ms forwards;
}

@keyframes reading-reveal {
    to { transform: translateY(0); opacity: 1; }
}

.chapter-panel {
    min-height: 100vh;
    padding: 40px 48px;
    scroll-snap-align: start;
    border-bottom: 0.5px solid var(--pale-slate);
}

.panel-running-title {
    display: flex;
    justify-content: space-between;
    margin-bottom: 36px;
    padding-bottom: 8px;
    border-bottom: 0.5px solid rgba(201, 168, 76, 0.35);
}

.cinzel-label {
    font-family: var(--font-cinzel);
    font-size: 11px;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--faded-verdigris);
}

.folio-right {
    font-family: var(--font-lora);
    font-style: italic;
    color: var(--antique-gold);
    font-size: 13px;
    letter-spacing: normal;
    text-transform: none;
}

/* Panel cards */
.panel-card {
    background: var(--ghost-white);
    border: 1px solid var(--pale-slate);
    margin-bottom: 28px;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 0 24px rgba(245, 240, 232, 0.6), 0 2px 8px rgba(44, 40, 32, 0.04);
}

.panel-card-secondary {
    background: rgba(245, 240, 232, 0.5);
    border-style: dashed;
    border-color: rgba(196, 205, 216, 0.5);
}

.card-body {
    padding: 36px 40px 36px 52px;
}

/* Ribbon markers on cards */
.card-ribbon {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
}

.ribbon-gold-vert     { background: var(--antique-gold); }
.ribbon-slate-vert    { background: var(--pale-slate); }
.ribbon-lavender-vert { background: var(--muted-lavender); }
.ribbon-rose-vert     { background: var(--dusty-rose); }
.ribbon-verdigris-vert{ background: var(--faded-verdigris); }

/* ================================================================
   TYPOGRAPHY
   ================================================================ */

.display-title {
    font-family: var(--font-display);
    font-size: clamp(56px, 8vw, 120px);
    letter-spacing: 0.12em;
    line-height: 0.92;
    color: var(--deep-ink);
    margin-bottom: 28px;
}

.section-heading {
    margin-bottom: 20px;
}

.body-text {
    font-family: var(--font-lora);
    font-size: 17px;
    line-height: 1.85;
    color: var(--deep-ink);
    margin-bottom: 18px;
    max-width: 68ch;
}

.body-text.lede {
    font-size: 19px;
    line-height: 1.75;
    color: var(--deep-ink);
    opacity: 0.85;
    font-style: italic;
}

/* ================================================================
   ORNAMENT RULES
   ================================================================ */

.ornament-rule {
    margin: 28px 0;
    width: 100%;
}

/* ================================================================
   TRANSMISSION LIST
   ================================================================ */

.transmission-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.transmission-item {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 16px 0;
    border-bottom: 0.5px solid rgba(196, 205, 216, 0.4);
    cursor: pointer;
    transition: background 150ms;
}

.transmission-item:hover {
    padding-left: 8px;
    background: rgba(201, 168, 76, 0.04);
}

.tx-meta {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--pale-slate);
    letter-spacing: 0.05em;
}

.tx-title {
    font-family: var(--font-lora);
    font-size: 15px;
    color: var(--deep-ink);
    transition: color 150ms;
}

.transmission-item:hover .tx-title {
    color: var(--antique-gold);
}

/* ================================================================
   COLLECTION GRID
   ================================================================ */

.collection-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 24px;
}

.collection-card {
    background: rgba(245, 240, 232, 0.7);
    border: 1px solid var(--pale-slate);
    padding: 24px;
    cursor: pointer;
    transition: border-color 200ms, box-shadow 200ms;
    position: relative;
}

.collection-card:hover {
    border-color: var(--antique-gold);
    box-shadow: 0 0 0 1px rgba(201, 168, 76, 0.2);
}

.collection-ornament {
    font-size: 20px;
    color: var(--antique-gold);
    margin-bottom: 10px;
    opacity: 0.8;
}

.collection-card h3 {
    margin-bottom: 10px;
}

.collection-desc {
    font-family: var(--font-lora);
    font-size: 13px;
    line-height: 1.7;
    color: var(--deep-ink);
    opacity: 0.75;
    margin-bottom: 12px;
}

.collection-count {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--faded-verdigris);
    letter-spacing: 0.05em;
}

/* ================================================================
   EPHEMERA LIST
   ================================================================ */

.ephemera-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 24px;
}

.ephemera-item {
    display: flex;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 0.5px solid rgba(196, 205, 216, 0.3);
}

.ephemera-glyph {
    font-family: var(--font-lora);
    font-size: 22px;
    color: var(--antique-gold);
    line-height: 1;
    flex-shrink: 0;
    margin-top: 2px;
    opacity: 0.7;
}

.ephemera-meta {
    display: block;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--pale-slate);
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.ephemera-text {
    font-family: var(--font-lora);
    font-size: 15px;
    line-height: 1.85;
    color: var(--deep-ink);
    font-style: italic;
    opacity: 0.88;
}

/* ================================================================
   APPARATUS TABLE
   ================================================================ */

.apparatus-table {
    margin: 24px 0;
    border-top: 0.5px solid var(--pale-slate);
}

.apparatus-row {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 24px;
    padding: 16px 0;
    border-bottom: 0.5px solid rgba(196, 205, 216, 0.35);
    align-items: baseline;
}

.apparatus-key {
    color: var(--faded-verdigris);
}

.apparatus-val {
    font-family: var(--font-lora);
    font-size: 15px;
    line-height: 1.7;
    color: var(--deep-ink);
    opacity: 0.85;
}

/* ================================================================
   COLOPHON CARD
   ================================================================ */

.colophon-body {
    max-width: 60ch;
}

.colophon-text {
    font-family: var(--font-lora);
    font-size: 17px;
    line-height: 1.85;
    margin-bottom: 24px;
}

.colophon-rule {
    height: 0.5px;
    background: var(--antique-gold);
    opacity: 0.4;
    margin: 20px 0;
}

.colophon-meta {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}

.meta-mono {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--pale-slate);
    letter-spacing: 0.08em;
}

.colophon-fine {
    font-family: var(--font-lora);
    font-size: 12px;
    line-height: 1.7;
    color: var(--deep-ink);
    opacity: 0.5;
    margin-top: 20px;
    font-style: italic;
}

.colophon-contact {
    margin-top: 28px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.contact-link {
    font-family: var(--font-lora);
    font-size: 15px;
    color: var(--faded-verdigris);
    text-decoration: none;
    border-bottom: 0.5px solid var(--faded-verdigris);
    padding-bottom: 1px;
    width: fit-content;
    transition: color 200ms, border-color 200ms;
}

.contact-link:hover {
    color: var(--antique-gold);
    border-color: var(--antique-gold);
}

/* ================================================================
   RIGHT MARGINALIA COLUMN
   ================================================================ */

.marginalia-column {
    position: sticky;
    top: 52px;
    height: calc(100vh - 52px);
    padding: 40px 24px 24px 20px;
    border-left: 0.5px solid var(--pale-slate);
    background: rgba(249, 247, 245, 0.7);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0;
    opacity: 0;
    animation: marginalia-reveal 700ms ease-out 700ms forwards;
}

@keyframes marginalia-reveal {
    to { opacity: 1; }
}

.marginalia-running-title {
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 0.5px solid rgba(201, 168, 76, 0.3);
}

.annotation-stack {
    display: flex;
    flex-direction: column;
    gap: 0;
    flex: 1;
}

.annotation {
    display: flex;
    gap: 10px;
    padding: 16px 0;
    border-bottom: 0.5px solid rgba(196, 205, 216, 0.25);
    border-left: 2px solid var(--antique-gold);
    padding-left: 12px;
    margin-bottom: 12px;
    opacity: 0;
    transform: translateX(8px);
    transition: opacity 500ms, transform 500ms;
}

.annotation.visible {
    opacity: 1;
    transform: translateX(0);
}

.annotation-marker {
    color: var(--faded-verdigris);
    font-size: 14px;
    flex-shrink: 0;
    line-height: 1.4;
}

.annotation-body {
    flex: 1;
}

.annotation-label {
    display: block;
    font-size: 9px;
    color: var(--antique-gold);
    margin-bottom: 6px;
    letter-spacing: 0.2em;
}

.annotation-text {
    font-family: var(--font-lora);
    font-size: 12px;
    line-height: 1.7;
    color: var(--deep-ink);
    opacity: 0.75;
    font-style: italic;
}

.annotation-connector {
    display: block;
    margin-top: 8px;
}

.marginalia-folio {
    margin-top: auto;
    padding-top: 16px;
    text-align: right;
}

.folio-num {
    font-family: var(--font-lora);
    font-style: italic;
    font-size: 13px;
    color: var(--pale-slate);
}

/* ================================================================
   BOOK FOOTER
   ================================================================ */

.book-footer {
    position: relative;
    z-index: 1;
    padding: 24px 48px 20px;
    background: rgba(245, 240, 232, 0.95);
}

.footer-rule {
    height: 1px;
    background: linear-gradient(to right, transparent, var(--antique-gold), transparent);
    margin-bottom: 16px;
}

.footer-content {
    display: flex;
    gap: 40px;
    align-items: center;
    flex-wrap: wrap;
}

.footer-catalog {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--pale-slate);
    letter-spacing: 0.08em;
}

.footer-title {
    font-family: var(--font-cinzel);
    font-size: 11px;
    letter-spacing: 0.2em;
    color: var(--deep-ink);
    opacity: 0.6;
}

.footer-edition {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--pale-slate);
    letter-spacing: 0.05em;
    margin-left: auto;
}

.footer-micro-rule {
    height: 0.5px;
    background: var(--pale-slate);
    margin-top: 16px;
    opacity: 0.4;
}

/* ================================================================
   GLITCH SYSTEM
   ================================================================ */

.glitch-target {
    position: relative;
    cursor: default;
}

.glitch-target.glitching {
    text-shadow: -2px 0 var(--glitch-cyan), 2px 0 var(--glitch-crimson);
    animation: glitch-jitter 120ms steps(1) forwards;
}

@keyframes glitch-jitter {
    0%   { text-shadow: -2px 0 var(--glitch-cyan), 2px 0 var(--glitch-crimson); }
    25%  { text-shadow: 2px 0 var(--glitch-cyan), -2px 0 var(--glitch-crimson); letter-spacing: calc(var(--ls, 0) + 0.02em); }
    50%  { text-shadow: -1px 1px var(--glitch-cyan), 1px -1px var(--glitch-crimson); }
    75%  { text-shadow: 1px 0 var(--glitch-cyan), -1px 0 var(--glitch-crimson); }
    100% { text-shadow: none; }
}

/* ================================================================
   SCROLLBAR STYLING
   ================================================================ */

.reading-surface::-webkit-scrollbar,
.marginalia-column::-webkit-scrollbar {
    width: 3px;
}

.reading-surface::-webkit-scrollbar-track,
.marginalia-column::-webkit-scrollbar-track {
    background: transparent;
}

.reading-surface::-webkit-scrollbar-thumb,
.marginalia-column::-webkit-scrollbar-thumb {
    background: rgba(201, 168, 76, 0.3);
    border-radius: 2px;
}

/* ================================================================
   RESPONSIVE ADAPTATION
   ================================================================ */

@media (max-width: 1100px) {
    :root {
        --col-spine: 60px;
        --col-center: 1fr;
        --col-margin: 220px;
    }

    .triptych {
        grid-template-columns: 60px 1fr 220px;
    }

    .spine-label {
        display: none;
    }

    .spine-item {
        padding: 16px 4px;
    }

    .card-body {
        padding: 28px 28px 28px 36px;
    }
}

@media (max-width: 800px) {
    .triptych {
        grid-template-columns: 48px 1fr;
    }

    .marginalia-column {
        display: none;
    }

    .chapter-panel {
        padding: 32px 24px;
    }
}

@media (max-width: 520px) {
    .triptych {
        grid-template-columns: 1fr;
    }

    .spine-column {
        display: none;
    }

    .chapter-panel {
        padding: 24px 16px;
    }

    .collection-grid {
        grid-template-columns: 1fr;
    }

    .display-title {
        font-size: clamp(48px, 14vw, 80px);
    }
}