/*
 * Shared design system for Moonlight Otaku Nights. Apply
 * .moonlight-theme to a wrapper div on any page. Override
 * --mt-accent-primary, --mt-accent-secondary, and --mt-accent-highlight
 * on a more specific selector to retheme the page.
 */

/* ── Tokens & Base ─────────────────────────────────────────────── */

.moonlight-theme {
    /* Background */
    --mt-bg: #0a0a0f;
    --mt-bg-elevated: #12121a;

    /* Text */
    --mt-text: #ffffff;
    --mt-text-muted: rgba(255, 255, 255, 0.6);
    --mt-text-dim: rgba(255, 255, 255, 0.4);

    /* Accent — overridable per page */
    --mt-accent-primary: #ac2181;        /* deep magenta — logo core */
    --mt-accent-secondary: #694591;      /* deep purple — logo inner glow */
    --mt-accent-highlight: #7fbbe0;      /* pale ice blue — logo cyan */
    --mt-accent-pink-soft: #f7b6d2;      /* pale pink — logo edge */
    --mt-accent-blue-deep: #3480c3;      /* mid blue — logo deep shadow */
    --mt-accent-gradient: linear-gradient(135deg, #ac2181 0%, #694591 50%, #3480c3 100%);

    /* Derived from accent */
    --mt-accent-glow: color-mix(in srgb, var(--mt-accent-primary) 40%, transparent);
    --mt-border: color-mix(in srgb, var(--mt-accent-primary) 15%, transparent);
    --mt-border-strong: color-mix(in srgb, var(--mt-accent-primary) 40%, transparent);
    --mt-panel: rgba(255, 255, 255, 0.03);

    position: relative;
    z-index: 0;
    isolation: isolate;
    min-height: 100vh;
    background: var(--mt-bg);
    color: var(--mt-text);
    font-family: 'Zen Kaku Gothic New', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ── Background Layers ─────────────────────────────────────────── */

.moonlight-theme .bg-stripes {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: -2;
    background: repeating-linear-gradient(
        45deg,
        transparent 0px,
        transparent 60px,
        color-mix(in srgb, var(--mt-accent-primary) 2.5%, transparent) 60px,
        color-mix(in srgb, var(--mt-accent-primary) 2.5%, transparent) 62px
    );
}

.moonlight-theme .bg-dots {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: -1;
    background-image: radial-gradient(
        circle,
        color-mix(in srgb, var(--mt-accent-primary) 8%, transparent) 1px,
        transparent 1px
    );
    background-size: 40px 40px;
}

.moonlight-theme .scanlines {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 9999;
    background: repeating-linear-gradient(
        to bottom,
        rgba(255, 255, 255, 0.04) 0px,
        rgba(255, 255, 255, 0.04) 1px,
        transparent 1px,
        transparent 3px
    );
    mix-blend-mode: overlay;
}

.moonlight-theme .noise {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 9998;
    opacity: 0.025;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/></svg>");
    background-repeat: repeat;
    background-size: 200px 200px;
    animation: noiseShift 16s linear infinite;
}

@keyframes noiseShift {
    0%   { background-position: 0 0; }
    25%  { background-position: 4px 3px; }
    50%  { background-position: -3px 5px; }
    75%  { background-position: 2px -2px; }
    100% { background-position: 0 0; }
}

/* ── Chromatic Title ───────────────────────────────────────────── */

.moonlight-theme .chromatic-title {
    position: relative;
    display: inline-block;
    z-index: 0;
    animation: titleGlitch 5s infinite;
}

.moonlight-theme .chromatic-title::before,
.moonlight-theme .chromatic-title::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.moonlight-theme .chromatic-title::before {
    color: color-mix(in srgb, var(--mt-accent-primary) 15%, transparent);
    z-index: -1;
    animation: titleGlitchBefore 5s infinite;
}

.moonlight-theme .chromatic-title::after {
    color: color-mix(in srgb, var(--mt-accent-blue-deep) 15%, transparent);
    z-index: -2;
    animation: titleGlitchAfter 5s infinite;
}

@keyframes titleGlitch {
    0%, 90%, 95%, 100% { opacity: 1; }
    90.01%, 94.99%     { opacity: 0.85; }
}

@keyframes titleGlitchBefore {
    0%, 90%, 95%, 100% { transform: translate(-2px, -1px); }
    90.01%, 94.99%     { transform: translate(-4px, -2px); }
}

@keyframes titleGlitchAfter {
    0%, 90%, 95%, 100% { transform: translate(2px, 1px); }
    90.01%, 94.99%     { transform: translate(4px, 2px); }
}

/* ── Buttons ───────────────────────────────────────────────────── */

.moonlight-theme .btn {
    font-family: 'Orbitron', sans-serif;
    padding: 1rem 2.5rem;
    letter-spacing: 3px;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 0.85rem;
    font-weight: 600;
    display: inline-block;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    background: none;
}

.moonlight-theme .btn-accent-outline {
    background: transparent;
    color: var(--mt-accent-primary);
    border: 1px solid var(--mt-accent-primary);
}

.moonlight-theme .btn-accent-outline:hover {
    background: var(--mt-accent-primary);
    color: var(--mt-bg);
    box-shadow: 0 0 30px var(--mt-accent-glow);
}

.moonlight-theme .btn-ghost {
    background: transparent;
    color: var(--mt-text-muted);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.moonlight-theme .btn-ghost:hover {
    border-color: var(--mt-text);
    color: var(--mt-text);
}

/* ── Section Head ──────────────────────────────────────────────── */

.moonlight-theme .section-head {
    margin-bottom: 3rem;
}

.moonlight-theme .section-head .jp-label {
    font-family: 'Noto Serif JP', serif;
    font-size: 0.9rem;
    font-style: italic;
    color: var(--mt-accent-primary);
    display: block;
    margin-bottom: 0.5rem;
}

.moonlight-theme .section-head .section-title {
    font-family: 'Orbitron', sans-serif;
    font-weight: 900;
    font-size: clamp(2.5rem, 6vw, 5rem);
    text-transform: uppercase;
    color: #fff;
    margin: 0;
    line-height: 1;
}

.moonlight-theme .section-head .section-sub {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.1rem;
    font-style: italic;
    color: var(--mt-text-muted);
    margin-top: 1rem;
}

/* ── Barcode Strip ─────────────────────────────────────────────── */

.moonlight-theme .barcode-strip {
    animation: barcodeFlicker 18s infinite;
    background: repeating-linear-gradient(
        90deg,
        color-mix(in srgb, var(--mt-accent-primary) 50%, transparent) 0px,
        color-mix(in srgb, var(--mt-accent-primary) 50%, transparent) 2px,
        transparent 2px,
        transparent 4px,
        color-mix(in srgb, var(--mt-accent-secondary) 45%, transparent) 4px,
        color-mix(in srgb, var(--mt-accent-secondary) 45%, transparent) 5px,
        transparent 5px,
        transparent 8px
    );
}

@keyframes barcodeFlicker {
    0%, 29.71%, 30.28%, 74.47%, 75.04%, 100% { opacity: 0.3; }
    29.72%, 30.27% { opacity: 0.9; }
    74.48%, 75.03% { opacity: 0.9; }
}

@keyframes barcodeFlickerTitle {
    0%, 29.71%, 30.28%, 74.47%, 75.04%, 100% { opacity: 0.4; }
    29.72%, 30.27% { opacity: 0.95; }
    74.48%, 75.03% { opacity: 0.95; }
}

/* ── Decorative Fragments ──────────────────────────────────────── */

.moonlight-theme .katakana-fragment {
    position: absolute;
    pointer-events: none;
    z-index: 1;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.9rem;
    color: color-mix(in srgb, var(--mt-accent-primary) 35%, transparent);
    letter-spacing: 2px;
    writing-mode: vertical-rl;
    text-orientation: mixed;
}

.moonlight-theme .data-fragment {
    position: absolute;
    pointer-events: none;
    z-index: 1;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.2);
    letter-spacing: 1px;
}

/* ── Diagonal Break ────────────────────────────────────────────── */

.moonlight-theme .diagonal-break {
    position: relative;
    width: 100%;
    height: 100px;
    overflow: hidden;
    pointer-events: none;
}

.moonlight-theme .diagonal-break-stripe {
    position: absolute;
    top: 0;
    width: 240px;
    height: 100%;
    background: repeating-linear-gradient(
        45deg,
        transparent 0px,
        transparent 8px,
        color-mix(in srgb, var(--mt-accent-primary) 40%, transparent) 8px,
        color-mix(in srgb, var(--mt-accent-primary) 40%, transparent) 16px
    );
}

.moonlight-theme .diagonal-break--start-left .diagonal-break-stripe {
    left: 0;
}

.moonlight-theme .diagonal-break--start-right .diagonal-break-stripe {
    right: 0;
}

/* ── Slash Divider ─────────────────────────────────────────────── */

.moonlight-theme .slash-divider {
    width: 100%;
    padding: 3rem 0;
    text-align: center;
}

.moonlight-theme .slash-divider .slashes {
    font-family: 'Orbitron', sans-serif;
    font-weight: 900;
    font-size: 2rem;
    letter-spacing: 0.5rem;
    color: rgba(255, 255, 255, 0.3);
    display: inline-block;
    transform: skewX(-20deg);
}

.moonlight-theme .slash-divider .slash-sub {
    font-family: 'Noto Serif JP', serif;
    font-size: 0.85rem;
    font-style: italic;
    color: var(--mt-text-dim);
    margin-top: 1rem;
}

/* ── Corner Brackets ───────────────────────────────────────────── */

.moonlight-theme .corner-bracket {
    position: absolute;
    width: 30px;
    height: 30px;
    pointer-events: none;
    border-style: solid;
    border-color: var(--mt-border-strong);
    border-width: 0;
    z-index: 0;
}

.moonlight-theme .corner-bracket.tl {
    border-top-width: 1px;
    border-left-width: 1px;
}

.moonlight-theme .corner-bracket.tr {
    border-top-width: 1px;
    border-right-width: 1px;
}

.moonlight-theme .corner-bracket.bl {
    border-bottom-width: 1px;
    border-left-width: 1px;
}

.moonlight-theme .corner-bracket.br {
    border-bottom-width: 1px;
    border-right-width: 1px;
}

/* ── Mobile ────────────────────────────────────────────────────── */

@media (max-width: 900px) {
    .moonlight-theme .slash-divider {
        padding: 2.25rem 0;
    }
}