/* ============================================
   Custom Properties
   ============================================ */
:root {
    /* Core palette */
    --bg-deep: #060610;
    --bg-dark: #0b0b16;
    --bg-card: #0f0f1a;

    /* Gold spectrum */
    --gold: #c9a84c;
    --gold-bright: #e4c76b;
    --gold-dim: #8a7233;
    --gold-faint: rgba(201, 168, 76, 0.15);
    --gold-glow: rgba(201, 168, 76, 0.25);

    /* Frost accent */
    --frost: #4a7c7e;

    /* Text */
    --text: #e8e0d0;
    --text-muted: #a09882;
    --text-dim: #6b6355;

    /* Document card */
    --parchment: #1e1c16;
    --parchment-text: #c4b898;
    --stamp-red: rgba(160, 50, 50, 0.45);

    /* Typography */
    --font-display: 'Cinzel Decorative', serif;
    --font-heading: 'Cinzel', serif;
    --font-body: 'Cormorant Garamond', 'Georgia', serif;
    --font-mono: 'Special Elite', 'Courier New', monospace;

    /* Spacing */
    --page-pad: clamp(1rem, 5vw, 3rem);
    --card-pad: clamp(1.5rem, 4vw, 3rem);
}


/* ============================================
   Reset & Base
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    color: var(--text);
    background: var(--bg-deep);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.8;
}


/* ============================================
   Atmospheric Layers
   ============================================ */

/* Particle canvas */
#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

/* Vignette */
.vignette {
    position: fixed;
    inset: 0;
    background: radial-gradient(
        ellipse at center,
        transparent 35%,
        rgba(6, 6, 16, 0.55) 65%,
        rgba(6, 6, 16, 0.92) 100%
    );
    pointer-events: none;
    z-index: 2;
}

/* Fog layers */
.fog {
    position: fixed;
    top: 0;
    left: -50%;
    width: 200%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.fog--1 {
    background:
        radial-gradient(ellipse at 25% 50%, rgba(201, 168, 76, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 25%, rgba(201, 168, 76, 0.02) 0%, transparent 40%);
    animation: fogDrift1 35s ease-in-out infinite alternate;
}

.fog--2 {
    background:
        radial-gradient(ellipse at 65% 60%, rgba(74, 124, 126, 0.03) 0%, transparent 45%),
        radial-gradient(ellipse at 15% 75%, rgba(74, 124, 126, 0.02) 0%, transparent 35%);
    animation: fogDrift2 28s ease-in-out infinite alternate;
}

/* Yggdrasil tree */
.yggdrasil {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(80vw, 520px);
    height: min(85vh, 750px);
    color: var(--gold);
    opacity: 0.03;
    z-index: 0;
    pointer-events: none;
    animation: treeBreathe 10s ease-in-out infinite;
}


/* ============================================
   Page Layout
   ============================================ */
.page {
    position: relative;
    z-index: 10;
    max-width: 740px;
    margin: 0 auto;
    padding: var(--page-pad);
    padding-top: clamp(2.5rem, 10vh, 7rem);
    padding-bottom: clamp(3rem, 10vh, 8rem);
}


/* ============================================
   Header
   ============================================ */
.header {
    text-align: center;
    margin-bottom: clamp(2.5rem, 7vh, 5rem);
}

.runes {
    font-family: var(--font-heading);
    font-size: 0.7rem;
    letter-spacing: 0.55em;
    color: var(--gold-dim);
    opacity: 0.5;
    user-select: none;
    line-height: 1;
}

.runes:first-child {
    margin-bottom: 0.85rem;
}

.runes:nth-child(3) {
    margin-top: 0.85rem;
}

.title {
    font-family: var(--font-display);
    font-size: clamp(1.7rem, 5vw, 3rem);
    font-weight: 400;
    color: var(--gold);
    letter-spacing: 0.2em;
    line-height: 1.3;
    text-shadow:
        0 0 25px rgba(201, 168, 76, 0.25),
        0 0 50px rgba(201, 168, 76, 0.08);
}

/* Title letter-spacing animation */
html.js .title {
    letter-spacing: 0.5em;
    animation: titleLetters 1.6s ease-out 0.5s forwards;
}

/* Ornamental line with diamond */
.header__ornament {
    width: 180px;
    height: 1px;
    margin: 1.6rem auto 0;
    background: linear-gradient(to right, transparent, var(--gold-dim), transparent);
    position: relative;
}

.header__ornament::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 7px;
    height: 7px;
    background: var(--gold);
    transform: translate(-50%, -50%) rotate(45deg);
    box-shadow: 0 0 8px rgba(201, 168, 76, 0.4);
}


/* ============================================
   Cards — Shared
   ============================================ */
.card {
    position: relative;
    border-radius: 2px;
    padding: var(--card-pad);
    transition: transform 0.5s ease, box-shadow 0.5s ease;
}

.card:hover {
    transform: translateY(-3px);
}


/* ============================================
   Card — Norns (Puzzle 1)
   ============================================ */
.card--norns {
    background:
        repeating-linear-gradient(
            52deg,
            transparent,
            transparent 24px,
            rgba(201, 168, 76, 0.012) 24px,
            rgba(201, 168, 76, 0.012) 25px
        ),
        repeating-linear-gradient(
            -52deg,
            transparent,
            transparent 24px,
            rgba(201, 168, 76, 0.012) 24px,
            rgba(201, 168, 76, 0.012) 25px
        ),
        linear-gradient(180deg, rgba(15, 15, 26, 0.95), rgba(12, 12, 22, 0.98));
    border: 1px solid rgba(201, 168, 76, 0.12);
    box-shadow:
        0 0 30px rgba(201, 168, 76, 0.04),
        inset 0 0 30px rgba(201, 168, 76, 0.02),
        0 12px 45px rgba(0, 0, 0, 0.4);
}

.card--norns:hover {
    border-color: rgba(201, 168, 76, 0.2);
    box-shadow:
        0 0 45px rgba(201, 168, 76, 0.08),
        inset 0 0 40px rgba(201, 168, 76, 0.03),
        0 18px 55px rgba(0, 0, 0, 0.5);
}

/* Corner ornaments */
.card__corners {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 1;
}

.corner {
    position: absolute;
    width: 24px;
    height: 24px;
    transition: border-color 0.5s ease;
}

.corner--tl {
    top: 12px;
    left: 12px;
    border-top: 1.5px solid var(--gold-dim);
    border-left: 1.5px solid var(--gold-dim);
}

.corner--tr {
    top: 12px;
    right: 12px;
    border-top: 1.5px solid var(--gold-dim);
    border-right: 1.5px solid var(--gold-dim);
}

.corner--bl {
    bottom: 12px;
    left: 12px;
    border-bottom: 1.5px solid var(--gold-dim);
    border-left: 1.5px solid var(--gold-dim);
}

.corner--br {
    bottom: 12px;
    right: 12px;
    border-bottom: 1.5px solid var(--gold-dim);
    border-right: 1.5px solid var(--gold-dim);
}

.card--norns:hover .corner {
    border-color: var(--gold);
}

/* Card inner content */
.card__inner {
    position: relative;
    z-index: 2;
}

/* Emblem rune */
.card__emblem {
    text-align: center;
    font-size: 2rem;
    color: var(--gold);
    margin-bottom: 1.25rem;
    text-shadow: 0 0 15px rgba(201, 168, 76, 0.25);
    opacity: 0.4;
    line-height: 1;
}

/* Prose text */
.prose {
    font-family: var(--font-body);
    font-size: clamp(1.05rem, 2.5vw, 1.2rem);
    line-height: 1.85;
    color: var(--text);
    margin-bottom: 1rem;
    text-align: center;
}

.prose:last-child {
    margin-bottom: 0;
}

.prose--lead {
    font-size: clamp(1.1rem, 2.8vw, 1.3rem);
    font-style: italic;
    color: var(--text-muted);
    font-weight: 300;
}

.prose--emphasis {
    font-weight: 500;
}

.prose--diminished {
    font-size: 0.88em;
    color: var(--text-dim);
    font-style: italic;
}

.prose--question {
    font-family: var(--font-heading);
    font-size: clamp(1rem, 2.5vw, 1.15rem);
    color: var(--gold);
    letter-spacing: 0.08em;
    text-shadow: 0 0 12px rgba(201, 168, 76, 0.2);
    animation: pulseGlow 4s ease-in-out infinite;
}

/* Norn name highlights */
.norn {
    color: var(--gold);
    font-weight: 600;
    font-variant: small-caps;
    letter-spacing: 0.04em;
}

.norn--active {
    text-shadow: 0 0 10px rgba(201, 168, 76, 0.35);
    animation: pulseGlow 3s ease-in-out infinite;
}

/* Dividers */
.divider {
    width: 40%;
    max-width: 180px;
    height: 1px;
    margin: 1.75rem auto;
    background: linear-gradient(to right, transparent, var(--gold-dim), transparent);
    opacity: 0.45;
}


/* ============================================
   Card — Document (Puzzle 2)
   ============================================ */
.card--document {
    background: linear-gradient(180deg, var(--parchment), rgba(22, 20, 14, 0.95));
    border: 1px solid rgba(160, 140, 100, 0.1);
    box-shadow:
        0 0 20px rgba(0, 0, 0, 0.5),
        inset 0 0 40px rgba(0, 0, 0, 0.3),
        0 12px 45px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.card--document:hover {
    border-color: rgba(160, 140, 100, 0.18);
    box-shadow:
        0 0 30px rgba(0, 0, 0, 0.6),
        inset 0 0 50px rgba(0, 0, 0, 0.2),
        0 18px 55px rgba(0, 0, 0, 0.6);
}

/* Document header */
.document__header {
    text-align: center;
    padding-bottom: 1.25rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid rgba(160, 140, 100, 0.1);
    position: relative;
}

.document__stamp {
    position: absolute;
    top: 0;
    right: 0;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    letter-spacing: 0.25em;
    color: var(--stamp-red);
    border: 1.5px solid rgba(160, 50, 50, 0.25);
    padding: 3px 10px;
    transform: rotate(3deg);
    line-height: 1.3;
}

.document__title {
    font-family: var(--font-mono);
    font-size: clamp(0.85rem, 2.5vw, 1.05rem);
    font-weight: 400;
    letter-spacing: 0.2em;
    color: var(--parchment-text);
    margin-bottom: 0.3rem;
}

.document__subtitle {
    font-family: var(--font-mono);
    font-size: clamp(0.65rem, 1.8vw, 0.75rem);
    letter-spacing: 0.12em;
    color: var(--text-dim);
    text-transform: uppercase;
}

.document__classification {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-dim);
    font-style: italic;
    margin-top: 0.8rem;
    opacity: 0.6;
}

/* Document body */
.document__body {
    position: relative;
}

.document__text {
    font-family: var(--font-mono);
    font-size: clamp(0.78rem, 2.2vw, 0.9rem);
    line-height: 1.85;
    color: var(--parchment-text);
    margin-bottom: 0.5rem;
}

/* Damaged / burned sections */
.damaged {
    padding: 0.5rem 1rem;
    margin: 0.75rem 0;
    text-align: center;
    position: relative;
    background: linear-gradient(
        to right,
        transparent 0%,
        rgba(80, 50, 20, 0.15) 15%,
        rgba(80, 50, 20, 0.22) 50%,
        rgba(80, 50, 20, 0.15) 85%,
        transparent 100%
    );
    border-left: 2px solid rgba(180, 120, 40, 0.15);
    border-right: 2px solid rgba(180, 120, 40, 0.15);
}

.damaged--burned {
    background: linear-gradient(
        to right,
        transparent 0%,
        rgba(100, 30, 10, 0.18) 10%,
        rgba(60, 15, 5, 0.3) 50%,
        rgba(100, 30, 10, 0.18) 90%,
        transparent 100%
    );
    border-left-color: rgba(200, 60, 20, 0.12);
    border-right-color: rgba(200, 60, 20, 0.12);
}

.damaged__label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-style: italic;
    color: var(--gold-dim);
    letter-spacing: 0.08em;
    opacity: 0.6;
}

.damaged--burned .damaged__label {
    color: rgba(200, 100, 40, 0.55);
}

/* Burn edge at bottom of document */
.document__burn-edge {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50px;
    background: linear-gradient(
        to top,
        rgba(12, 8, 4, 0.65) 0%,
        rgba(25, 14, 6, 0.25) 45%,
        transparent 100%
    );
    pointer-events: none;
    border-radius: 0 0 2px 2px;
}


/* ============================================
   Section Divider
   ============================================ */
.section-divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 2.5rem 0;
    max-width: 320px;
    margin: 0 auto;
}

.section-divider::before,
.section-divider::after {
    content: '';
    flex: 1;
    height: 1px;
}

.section-divider::before {
    background: linear-gradient(to right, transparent, var(--gold-dim));
}

.section-divider::after {
    background: linear-gradient(to left, transparent, var(--gold-dim));
}

.section-divider__rune {
    color: var(--gold);
    font-size: 1.15rem;
    opacity: 0.45;
    animation: shimmer 6s ease-in-out infinite;
}


/* ============================================
   Footer
   ============================================ */
.footer {
    text-align: center;
    padding-top: clamp(2rem, 6vh, 4rem);
}

.footer__runes {
    font-size: 0.6rem;
    letter-spacing: 0.35em;
    color: var(--text-dim);
    opacity: 0.25;
    user-select: none;
    word-spacing: 0.2em;
}


/* ============================================
   Reveal Animations
   ============================================ */
html.js .reveal {
    opacity: 0;
    transform: translateY(25px);
    animation: revealUp 0.9s ease-out forwards;
    animation-delay: var(--delay, 0s);
}


/* ============================================
   Keyframes
   ============================================ */
@keyframes revealUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes titleLetters {
    to {
        letter-spacing: 0.2em;
    }
}

@keyframes pulseGlow {
    0%, 100% {
        text-shadow: 0 0 10px rgba(201, 168, 76, 0.15);
    }
    50% {
        text-shadow:
            0 0 18px rgba(201, 168, 76, 0.35),
            0 0 40px rgba(201, 168, 76, 0.1);
    }
}

@keyframes fogDrift1 {
    from { transform: translateX(0); }
    to { transform: translateX(5%); }
}

@keyframes fogDrift2 {
    from { transform: translateX(0); }
    to { transform: translateX(-4%); }
}

@keyframes treeBreathe {
    0%, 100% { opacity: 0.025; }
    50% { opacity: 0.045; }
}

@keyframes shimmer {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.75; }
}


/* ============================================
   Responsive
   ============================================ */
@media (max-width: 520px) {
    .corner {
        width: 18px;
        height: 18px;
    }

    .corner--tl, .corner--tr { top: 8px; }
    .corner--tl, .corner--bl { left: 8px; }
    .corner--tr, .corner--br { right: 8px; }
    .corner--bl, .corner--br { bottom: 8px; }

    .header__ornament {
        width: 120px;
    }

    .document__stamp {
        position: static;
        display: inline-block;
        transform: rotate(2deg);
        margin-bottom: 0.75rem;
    }

    .card__emblem {
        font-size: 1.6rem;
        margin-bottom: 1rem;
    }
}

@media (min-width: 1200px) {
    .page {
        max-width: 800px;
    }
}