/* ================================ */
/* Digital Telomere — Styles        */
/* ================================ */

:root {
    --bg-primary: #f8f9fa;
    --bg-section: #e9ecef;
    --text-primary: #2b2d42;
    --text-secondary: #4a4e69;
    --text-tertiary: #8d99ae;
    --accent-botanical: #606c38;
    --accent-cellular: #457b9d;
    --highlight-amber: #dda15e;
    --border-hairline: #ced4da;
    --deep-bg: #1d3557;
    --text-neutral: #6c757d;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    font-family: "Source Serif 4", Georgia, serif;
    font-weight: 400;
    font-size: clamp(1rem, 1.4vw, 1.15rem);
    line-height: 1.85;
    letter-spacing: 0.005em;
    font-feature-settings: "kern" 1, "liga" 1, "onum" 1;
    overflow-x: hidden;
    position: relative;
}

/* DNA Progress Indicator */
.dna-progress {
    position: fixed;
    left: 0;
    top: 0;
    width: 4px;
    height: 100vh;
    z-index: 100;
    pointer-events: none;
    background: repeating-linear-gradient(
        to bottom,
        transparent 0px,
        transparent 3px,
        var(--border-hairline) 3px,
        var(--border-hairline) 5px
    );
}

.dna-progress::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 0%;
    background: repeating-linear-gradient(
        to bottom,
        transparent 0px,
        transparent 3px,
        var(--accent-cellular) 3px,
        var(--accent-cellular) 5px
    );
    transition: height 0.1s linear;
}

/* Botanical Watermarks */
.botanical-watermark {
    position: absolute;
    opacity: 0.04;
    pointer-events: none;
    z-index: 0;
}

.botanical-watermark-1 {
    width: 400px;
    height: 500px;
    top: 10vh;
    right: 5vw;
    animation: watermark-rotate 120s linear infinite;
}

.botanical-watermark-2 {
    width: 350px;
    height: 350px;
    top: 200vh;
    right: 8vw;
    animation: watermark-rotate 150s linear infinite reverse;
}

.botanical-watermark-3 {
    width: 450px;
    height: 540px;
    top: 450vh;
    right: 3vw;
    animation: watermark-rotate 180s linear infinite;
}

@keyframes watermark-rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Specimen Blur-Focus Pattern */
.specimen {
    opacity: 0;
    transition: filter 0.8s ease-out, opacity 0.8s ease-out;
    will-change: filter, opacity;
}

.specimen[data-blur="3"] { filter: blur(3px); }
.specimen[data-blur="4"] { filter: blur(4px); }
.specimen[data-blur="8"] { filter: blur(8px); }
.specimen[data-blur="12"] { filter: blur(12px); }

.specimen.in-view {
    opacity: 1;
    filter: blur(0) !important;
}

.specimen.transition-done {
    will-change: auto;
}

/* Section Layout */
.section {
    position: relative;
    z-index: 1;
}

/* Abstract Section */
.section-abstract {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 5vw;
}

.section-abstract .section-content {
    max-width: 1440px;
    width: 100%;
    margin: 0 auto;
    padding-right: 37.5%;
}

.headline-blur {
    font-family: "Barlow Condensed", "Arial Narrow", sans-serif;
    font-weight: 600;
    font-size: clamp(4rem, 12vw, 9rem);
    letter-spacing: -0.02em;
    line-height: 0.92;
    color: var(--text-primary);
    margin-bottom: 3rem;
}

.abstract-text p {
    margin-bottom: 1.5rem;
    max-width: 38em;
}

/* Section Dividers */
.section-divider {
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
}

.dna-ornament {
    width: 24px;
    height: 12px;
    opacity: 0.6;
}

/* Section Headings */
.section-heading {
    font-family: "Barlow Condensed", "Arial Narrow", sans-serif;
    font-weight: 600;
    font-size: clamp(3rem, 8vw, 7rem);
    letter-spacing: -0.02em;
    line-height: 0.92;
    color: var(--text-primary);
    margin-bottom: 3rem;
    position: relative;
}

.section-number {
    display: block;
    font-family: "IBM Plex Mono", monospace;
    font-weight: 400;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    color: var(--text-tertiary);
    margin-bottom: 0.75rem;
    line-height: 1;
}

/* Two Column Layout (Introduction) */
.section-introduction {
    padding: 10vh 5vw;
}

.two-column-layout {
    max-width: 1440px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 3fr 7fr;
    gap: 4vw;
    padding-right: 25%;
}

.margin-notes {
    padding-top: 6rem;
}

.margin-note {
    margin-bottom: 3rem;
}

.note-label {
    display: block;
    font-family: "Barlow", sans-serif;
    font-weight: 400;
    font-size: 0.78rem;
    line-height: 1.55;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--text-tertiary);
    margin-bottom: 0.4rem;
}

.margin-note p {
    font-family: "Barlow", sans-serif;
    font-weight: 400;
    font-size: 0.78rem;
    line-height: 1.55;
    letter-spacing: 0.03em;
    color: var(--text-tertiary);
}

.specimen-thumbnail {
    margin-top: 0.5rem;
}

.thumbnail-placeholder {
    width: 100%;
    height: 80px;
    background: var(--bg-section);
    border: 1px solid var(--border-hairline);
    position: relative;
}

.thumbnail-placeholder::after {
    content: "";
    position: absolute;
    inset: 0;
    box-shadow: inset 0 0 20px rgba(0,0,0,0.08);
}

.body-column p {
    margin-bottom: 1.8rem;
    max-width: 38em;
}

/* Pull Quotes */
.pull-quote {
    margin: 3rem 0;
    padding: 1.5rem 0 1.5rem 2rem;
    border-left: 4px solid var(--accent-botanical);
}

.pull-quote p {
    font-family: "Barlow Condensed", "Arial Narrow", sans-serif;
    font-weight: 600;
    font-style: italic;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: 0.75rem !important;
}

.pull-quote cite {
    font-family: "Barlow", sans-serif;
    font-style: normal;
    font-size: 0.78rem;
    letter-spacing: 0.03em;
    color: var(--text-tertiary);
}

/* Footnotes */
.footnote-marker {
    color: var(--accent-cellular);
    cursor: default;
    font-family: "Barlow", sans-serif;
    font-size: 0.75em;
    position: relative;
    top: -0.3em;
}

.footnote-annotations {
    position: fixed;
    right: 3vw;
    top: 50%;
    transform: translateY(-50%);
    width: 20vw;
    max-width: 300px;
    z-index: 50;
    pointer-events: none;
}

.footnote-text {
    opacity: 0;
    filter: blur(4px);
    transition: opacity 0.4s ease-out, filter 0.4s ease-out;
    margin-bottom: 2rem;
    pointer-events: none;
}

.footnote-text.visible {
    opacity: 1;
    filter: blur(0);
}

.fn-number {
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.75rem;
    color: var(--accent-cellular);
    display: block;
    margin-bottom: 0.25rem;
}

.footnote-text p {
    font-family: "Barlow", sans-serif;
    font-size: 0.78rem;
    line-height: 1.55;
    color: var(--text-tertiary);
}

/* Narrow Column (Methodology) */
.section-methodology {
    padding: 10vh 5vw;
    background: var(--bg-primary);
}

.narrow-column {
    max-width: 1440px;
    margin: 0 auto;
    padding-left: 12.5%;
    padding-right: 37.5%;
}

.narrow-column p {
    margin-bottom: 1.8rem;
    max-width: 38em;
}

/* Method Blocks */
.method-block {
    margin: 3rem 0;
    padding: 2rem 0;
    border-top: 1px solid var(--border-hairline);
}

.method-title {
    font-family: "Barlow Condensed", "Arial Narrow", sans-serif;
    font-weight: 600;
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.code-label {
    font-family: "IBM Plex Mono", monospace;
    font-weight: 400;
    font-size: 0.85rem;
    color: var(--text-neutral);
    letter-spacing: 0.02em;
    margin-right: 0.75rem;
}

.method-block p {
    margin-bottom: 1.5rem;
}

/* Results Section */
.section-results {
    padding: 10vh 5vw;
}

.full-width-content {
    max-width: 1440px;
    margin: 0 auto;
    padding-right: 37.5%;
    margin-bottom: 10vh;
}

/* Specimen Plates */
.specimen-plate-container {
    max-width: 1440px;
    margin: 0 auto 30vh;
    padding: 0 5vw;
}

.specimen-plate {
    margin: 0;
}

.plate-frame {
    border: 1px solid var(--border-hairline);
    background: var(--bg-section);
    position: relative;
    overflow: hidden;
}

.plate-frame::after {
    content: "";
    position: absolute;
    inset: 0;
    box-shadow: inset 0 0 60px rgba(0,0,0,0.15);
    pointer-events: none;
}

.plate-image {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.generated-specimen {
    width: 100%;
    max-width: 800px;
    height: auto;
}

.plate-caption {
    font-family: "IBM Plex Mono", monospace;
    font-weight: 400;
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-neutral);
    padding: 1.5rem 0 0;
}

.figure-number {
    font-variant: small-caps;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
}

.results-text {
    margin-top: 10vh;
}

.data-highlight {
    font-family: "IBM Plex Mono", monospace;
    font-weight: 400;
    color: var(--accent-cellular);
    font-size: 0.95em;
}

/* Conclusion Section */
.section-conclusion {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 10vh 5vw;
}

.section-conclusion .section-content {
    max-width: 1440px;
    width: 100%;
    margin: 0 auto;
    padding-right: 37.5%;
}

.body-conclusion {
    margin-bottom: 1.8rem;
    max-width: 38em;
}

.closing-mark {
    margin-top: 6rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border-hairline);
}

/* Page Margin Annotations */
.page-margin-annotations {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.margin-annotation {
    position: absolute;
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    color: var(--border-hairline);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    opacity: 0.8;
}

/* Footnote Marker Hover */
.footnote-marker:hover {
    color: var(--highlight-amber);
}

/* Responsive */
@media (max-width: 1024px) {
    .section-abstract .section-content,
    .section-conclusion .section-content,
    .full-width-content {
        padding-right: 15%;
    }

    .two-column-layout {
        grid-template-columns: 1fr;
        padding-right: 15%;
    }

    .margin-notes {
        padding-top: 0;
        order: 2;
        border-top: 1px solid var(--border-hairline);
        padding-top: 3rem;
        margin-top: 3rem;
    }

    .body-column { order: 1; }

    .narrow-column {
        padding-left: 0;
        padding-right: 15%;
    }

    .footnote-annotations {
        display: none;
    }

    .page-margin-annotations {
        display: none;
    }

    .botanical-watermark {
        display: none;
    }
}

@media (max-width: 768px) {
    .section-abstract .section-content,
    .section-conclusion .section-content,
    .full-width-content,
    .narrow-column,
    .two-column-layout {
        padding-right: 5%;
        padding-left: 0;
    }

    .section-divider {
        height: 30vh;
    }

    .specimen-plate-container {
        margin-bottom: 15vh;
        padding: 0;
    }

    .headline-blur {
        font-size: clamp(3rem, 10vw, 5rem);
    }
}

/* Selection */
::selection {
    background: rgba(69, 123, 157, 0.2);
    color: var(--text-primary);
}