/* ── Design Tokens ─────────────────────────────────────────────── */
:root {
    --bg-dark:      #050505;
    --bg-card:      rgba(18, 18, 18, 0.6);
    --accent:       #ffdd00;
    --accent-glow:  rgba(255, 221, 0, 0.15);
    --accent-glow2: rgba(255, 221, 0, 0.25);
    --text-muted:   #888;
    --border:       rgba(255, 255, 255, 0.08);
    --font-display: Helvetica, Arial, sans-serif;
    --font-body:    Helvetica, Arial, sans-serif;
}

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

/* ── Base ───────────────────────────────────────────────────────── */
body {
    margin: 0;
    padding: 0;
    background: radial-gradient(circle at 30% 20%, #1a1a1a 0%, var(--bg-dark) 70%);
    color: #fff;
    font-family: var(--font-body);
    min-height: 100vh;
}

p {
    font-size: 1rem;
    font-family: var(--font-body);
}

/* ── Floating Home Button ───────────────────────────────────────── */
.home-btn {
    position: fixed;
    top: 22px;
    left: 22px;
    z-index: 1000;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-decoration: none;
    font-size: 1.05rem;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.home-btn:hover {
    background: var(--accent);
    color: #000;
    border-color: var(--accent);
    box-shadow: 0 8px 25px var(--accent-glow2);
    transform: scale(1.1) translateY(-2px);
}

@media (max-width: 600px) {
    .home-btn {
        top: auto;
        bottom: 22px;
        left: auto;
        right: 22px;
    }
}

/* ── Page Wrapper ───────────────────────────────────────────────── */
.page-wrapper {
    max-width: 760px;
    margin: 0 auto;
    padding: 90px 24px 80px;
}

/* ── Header ─────────────────────────────────────────────────────── */
.writings-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.writings-header h1 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    background: linear-gradient(135deg, #ffffff 20%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 2px 8px rgba(255, 255, 255, 0.08));
    margin: 0 0 0.4rem;
}

.writings-header .subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 0.25em;
    text-transform: uppercase;
    margin: 0 0 0.5rem;
}

.writings-header .mirror-info {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0;
}

.writings-header .mirror-info a {
    color: var(--accent);
    text-decoration: none;
    transition: opacity 0.2s;
}

.writings-header .mirror-info a:hover { opacity: 0.75; }

.header-divider {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    margin: 1rem auto 0;
    border: none;
}

/* ── Glassmorphic card ──────────────────────────────────────────── */
.glass-wrap {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    backdrop-filter: blur(20px);
    padding: 2rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 40px var(--accent-glow);
}

/* ── Writings List ──────────────────────────────────────────────── */
.writings-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding-bottom: 1rem;
}

.site-wrapper {
    margin-bottom: 1rem;
}

.site-title {
    text-align: center;
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 0.8rem;
    color: #fff;
    text-decoration: none;
    font-family: var(--font-display);
    letter-spacing: 0.05em;
}

.site-title i {
    margin-right: 0.5rem;
}

.iframe-container,
.iframe-container-wp,
.medium-container {
    position: relative;
    max-width: 600px;
    height: 300px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    background: #fff;
    display: block;
    text-decoration: none;
    width: 100%;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), border-color 0.3s, box-shadow 0.3s;
}

.medium-container {
    height: fit-content;
    padding: 5px;
}

.iframe-container-wp-mobile {
    display: none;
    position: relative;
    max-width: 600px;
    height: 300px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    background: #fff;
    text-decoration: none;
    width: 100%;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), border-color 0.3s, box-shadow 0.3s;
}

.iframe-container:hover,
.iframe-container-wp:hover,
.iframe-container-wp-mobile:hover,
.medium-container:hover {
    transform: translateY(-4px) scale(1.01);
    border-color: rgba(255, 221, 0, 0.4);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), 0 0 20px var(--accent-glow);
}

.iframe-container iframe,
.iframe-container img {
    width: 100%;
    border: none;
    pointer-events: none;
    animation: autoscroll 90s linear infinite alternate;
    transform-origin: top center;
}

.iframe-container-wp img {
    width: 100%;
    border: none;
    pointer-events: none;
    animation: autoscroll 40s linear infinite alternate;
    transform-origin: top center;
}

.iframe-container-wp-mobile img {
    width: 100%;
    border: none;
    pointer-events: none;
    animation: autoscroll 25s linear infinite alternate;
    transform-origin: top center;
}

.iframe-container iframe {
    height: 3500px;
}

.iframe-container img {
    height: auto;
    display: block;
}

.iframe-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.15);
    z-index: 10;
    transition: background 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.iframe-container:hover .iframe-overlay,
.medium-container:hover .iframe-overlay {
    background: rgba(0, 0, 0, 0.6);
}

.iframe-overlay-content {
    text-align: center;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.iframe-container:hover .iframe-overlay-content,
.medium-container:hover .iframe-overlay-content {
    opacity: 1;
    transform: translateY(0);
}

.iframe-title {
    color: white;
    font-size: 1.8rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    text-shadow: 1px 1px 8px rgba(0, 0, 0, 0.8);
    font-family: var(--font-display);
}

.iframe-subtitle {
    color: var(--accent);
    font-size: 1rem;
    text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.8);
    font-weight: 600;
}

@keyframes autoscroll {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(calc(300px - 100%));
    }
}

@media (max-width: 650px) {
    .iframe-container-wp-mobile {
        display: block;
    }
    .iframe-container-wp {
        display: none;
    }
}

/* ── Markdown Article Cards ─────────────────────────────────────── */
.md-article-card {
    background: rgba(255, 255, 255, 0.03);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.md-article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4), 0 0 15px var(--accent-glow);
    border-color: var(--accent);
}

.md-article-card h3 {
    margin: 0;
    font-size: 1.15rem;
    color: var(--accent);
    font-family: var(--font-display);
}

.md-article-card p {
    margin: 0;
    font-size: 0.9rem;
    color: #ccc;
    line-height: 1.4;
}

@media (max-width: 650px) {
    .markdown-articles-grid {
        grid-template-columns: 1fr !important;
    }
}

/* ── Footer ─────────────────────────────────────────────────────── */
.page-footer {
    text-align: center;
    margin-top: 3rem;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.2);
    letter-spacing: 0.1em;
}