:root {
    /* Surface Colors (Yarn) */
    --ink:#1a1a1a;
    --ink-light:#4a4a4a;
    --ink-muted:#7a7a7a;
    --cream:#faf8f2;
    --cream-dark:#f0ece0;
    --white:#ffffff;
    --sage:#2d6a4f;
    --sage-dark:#1b4332;
    --sage-light:#52b788;
    --sage-pale:#d8f3dc;
    --gold:#c8952e;
    --gold-light:#faedcd;
    --gold-pale:#fdf6e3;
    --border:#e0dcd0;

    /* Transition (Origin Loom) */
    --void-black:#0A0A0F;
    --deep-navy:#0F1420;
    --origin-gold:#D4A853;
    --thread-amber:#F5A623;
    --copper-light:#E8B87D;
    --discovery-white:#FAFAFA;
    --cream-lm:#F5F0E6;

    /* Occult */
    --mystic-indigo:#2E0F5E;
    --hidden-violet:#4A1C6E;

    /* Typography */
    --font-serif: Georgia,serif;
    --font-sans: system-ui,sans-serif;
    --font-mono: SF Mono,Fira Code,Consolas,monospace;
}

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

body {
    background: var(--cream);
    color: var(--ink);
    font-family: var(--font-sans);
    line-height: 1.6;
    transition: background-color 0.8s, color 0.8s;
    padding-top: 56px; /* Space for fixed header */
}

/* --- HEADER & GLOBAL ELEMENTS --- */
header {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    z-index: 50;
    padding: 1rem 2rem;
}

/* --- GRIDS & LAYOUTS --- */
.hero-grid {
    display: grid;
    grid-template-columns: 2fr 1fr; /* Text left, visual right */
    gap: 40px;
    padding: 4rem 2rem;
}

.article-card-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    padding: 2rem;
}

.article-card {
    background: var(--white);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.article-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1); /* shadow-lg */
}

/* Trust Bar & Methodology */
.trust-bar {
    background: var(--sage-dark);
    color: var(--cream);
    padding: 2rem;
    text-align: center;
    font-size: 1.1em;
}

.methodology-grid {
    display: flex;
    justify-content: space-around;
    gap: 20px;
    padding: 3rem 2rem;
}

.step-card h3 {
    color: var(--sage);
}

/* CTA Bar */
.cta-bar {
    background: var(--cream-lm);
    padding: 3rem 2rem;
    text-align: center;
    border-top: 1px dashed var(--border);
    border-bottom: 1px dashed var(--border);
}

.cta-button {
    background-color: var(--gold);
    color: var(--ink);
    padding: 0.8rem 2rem;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.1s;
}

/* Comparison Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
}

th {
    background: var(--sage-dark);
    color: var(--cream);
    padding: 1rem;
    text-align: left;
}

td, th {
    border: 1px solid var(--border);
    padding: 0.8rem;
}

/* Product Boxes & FAQ */
.product-box {
    background: var(--white);
    border-left: 4px solid var(--gold);
    padding: 1rem;
    margin-bottom: 1rem;
}

.faq-item {
    border-left: 3px solid var(--sage);
    padding-left: 15px;
    margin-bottom: 10px;
}

/* Sidebar/Index */
.sidebar-card, .orphaned-index {
    background: var(--white);
    border: 1px solid var(--border);
    padding: 1rem;
    margin-bottom: 20px;
}

/* --- ARG STYLING AND UTILITIES --- */
.thread-pull {
    color: inherit;
    text-decoration: none;
    cursor: text;
    transition: color 0.8s;
    font-weight: bold;
}
.thread-pull:hover {
    color: var(--sage);
}
.thread-pull:active {
    color: var(--gold);
}

/* Origin Point Animation */
.origin-point {
    position: fixed;
    width: 2px;
    height: 2px;
    border-radius: 50%;
    background: var(--origin-gold);
    opacity: 0.03;
    z-index: 9999;
    animation: origin-pulse 3s ease-in-out infinite;
}

@keyframes origin-pulse {
    0%, 100% { opacity: 0.03; transform: scale(1); }
    50% { opacity: 0.08; transform: scale(1.5); }
}

/* Hidden/Revealed Void Text */
.hidden-void-text {
    color: var(--cream);
    background: transparent;
    transition: color 0.3s;
}
.hidden-void-text.revealed {
    color: var(--ink);
}
.hidden-void-text::selection {
    background: var(--sage-pale);
    color: var(--ink);
}

/* Dead Link Styling */
.dead-directory-link {
    color: inherit;
    text-decoration: none;
    border-bottom: 1px dotted var(--ink-muted);
}

/* Orphaned Index Highlighting */
.orphaned-index .term {
    cursor: pointer;
    transition: color 0.2s;
    display: inline-block; /* Important for hover area */
}
.orphaned-index .term:hover {
    color: var(--sage);
}
.orphaned-index .term.acrostic-highlight {
    color: var(--gold);
    font-weight: 700;
}

/* Emerging Grid Overlay */
.emerging-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 100;
    opacity: 0;
    transition: opacity 0.5s, background 0.5s;
    /* Defines the repeating grid pattern */
    background: repeating-linear-gradient(0deg, transparent, transparent 49px, var(--origin-gold) 49px, var(--origin-gold) 50px), repeating-linear-gradient(90deg, transparent, transparent 49px, var(--origin-gold) 49px, var(--origin-gold) 50px);
}

/* Terminal Overlay */
.terminal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--void-black);
    color: var(--origin-gold);
    font-family: var(--font-mono);
    z-index: 10000;
    display: none;
    padding: 2rem;
    overflow: hidden;
}
.terminal-overlay.active {
    display: block;
}

/* --- PHASE OVERRIDES STYLES --- */

/* Phase 2: Initial Flicker and Origin Spread */
body.phase-2 {
    background: var(--cream); /* Still cream base, but elements flicker */
}
/* Article card flickering effect (simulated by slight shadow/transform changes) */
.article-card[data-flicker="true"] {
    animation: article-flicker 1s infinite alternate;
}

@keyframes article-flicker {
    0% { transform: translateY(0px); box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05); }
    25% { transform: translateY(-1px); box-shadow: 0 7px 10px rgba(0, 0, 0, 0.1); background: var(--cream-dark); }
    75% { transform: translateY(-1.5px); box-shadow: 0 8px 12px rgba(0, 0, 0, 0.15); border-color: var(--sage-light); }
    100% { transform: translateY(-2px); box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1); }
}

/* Phase 3: Deepening and Jagged Borders */
body.phase-3 {
    background: linear-gradient(to bottom right, var(--cream), var(--deep-navy));
    color: var(--ink-light);
}

/* Jagged/Flickering Gold Borders (Applied to elements with gold borders) */
[style*="var(--gold)"] {
    box-shadow: 0 0 5px rgba(212, 168, 83, 0.4), inset 0 0 5px rgba(212, 168, 83, 0.2);
}

/* Phase 4: Void Black and Glitching */
body.phase-4 {
    background: var(--void-black);
    color: var(--discovery-white);
}

/* General text color shift for phase 4 */
body.phase-4 * {
    color: var(--discovery-white) !important;
}

/* Glitching Serif Text (Applies to elements using --font-serif) */
.glitch-text {
    animation: glitch-loop 1s infinite alternate linear;
    display: inline-block;
}
@keyframes glitch-loop {
    0% { text-shadow: 2px 0 red, -2px 0 blue; transform: translate(0); }
    33% { text-shadow: -3px 0 #fff, 3px 0 #f91; transform: translate(-1px, 1px); }
    66% { text-shadow: 1px 0 red, -1px 0 blue; transform: translate(1px, -1px); }
    100% { text-shadow: 3px 0 #fff, -3px 0 #f91; transform: translate(0); }
}

/* Phase 5: Full Occult Immersion */
body.phase-5 {
    background: var(--void-black);
    color: var(--origin-gold);
}

body.phase-5 * {
    color: var(--origin-gold) !important; /* Default visible text color */
}
/* Specific overrides for phase 5 colors */
body.phase-5 .thread-pull, body.phase-5 h1, body.phase-5 p {
    color: var(--hidden-violet) !important;
}

/* --- MEDIA QUERIES (RESPONSIVE DESIGN) --- */

/* Tablet/Small Desktop (1024px) */
@media screen and (max-width: 1024px) {
    .article-card-container {
        grid-template-columns: repeat(2, 1fr); /* 2-col cards */
    }
}

/* Medium Desktop/Laptop (900px) */
@media screen and (max-width: 900px) {
    .hero-grid {
        grid-template-columns: 1fr; /* Single column hero */
        gap: 30px;
        padding: 2rem;
    }

    .article-card-container {
        grid-template-columns: repeat(2, 1fr); /* 2-col cards (slightly smaller) */
    }
}

/* Mobile Devices (768px) */
@media screen and (max-width: 768px) {
    header {
        padding: 1rem;
    }
    .hero-grid, .article-card-container {
        grid-template-columns: 1fr; /* Single column hero/cards */
        gap: 20px;
        padding: 1.5rem;
    }

    .methodology-grid {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}

/* Compact Mobile (480px) */
@media screen and (max-width: 480px) {
    header {
        padding: 1rem 0.5rem;
    }
    .article-card-container, .hero-grid {
        padding: 1rem;
    }

    .cta-button {
        display: block; /* Full width button */
        width: 90%;
        margin: 0 auto;
    }
}