:root {
    --bg-page: #fbfaf6;
    --card-bg: #ffffff;
    --text-main: #0f172a;
    --text-muted: rgba(15, 23, 42, 0.62);
    --text-soft: rgba(15, 23, 42, 0.78);
    --border-color: #e5e7eb;
    --accent: #6366f1;
    --accent-soft: rgba(99, 102, 241, 0.14);
    --aurora-1: rgba(252, 199, 138, 0.14);
    --aurora-2: rgba(129, 140, 248, 0.09);
    --aurora-3: rgba(34, 211, 238, 0);
    --code-bg: rgba(15, 23, 42, 0.06);
    --button-text: #ffffff;
}

:root[data-theme="dark"] {
    --bg-page: #0b1020;
    --card-bg: #161d2e;
    --text-main: #f9fafb;
    --text-muted: rgba(255, 255, 255, 0.62);
    --text-soft: rgba(255, 255, 255, 0.78);
    --border-color: rgba(129, 140, 248, 0.16);
    --accent: #818cf8;
    --accent-soft: rgba(129, 140, 248, 0.22);
    --aurora-1: rgba(129, 140, 248, 0.28);
    --aurora-2: rgba(244, 114, 182, 0.22);
    --aurora-3: rgba(56, 189, 248, 0.18);
    --code-bg: rgba(255, 255, 255, 0.08);
    --button-text: #ffffff;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme]) {
        --bg-page: #0b1020;
        --card-bg: #161d2e;
        --text-main: #f9fafb;
        --text-muted: rgba(255, 255, 255, 0.62);
        --text-soft: rgba(255, 255, 255, 0.78);
        --border-color: rgba(129, 140, 248, 0.16);
        --accent: #818cf8;
        --accent-soft: rgba(129, 140, 248, 0.22);
        --aurora-1: rgba(129, 140, 248, 0.28);
        --aurora-2: rgba(244, 114, 182, 0.22);
        --aurora-3: rgba(56, 189, 248, 0.18);
        --code-bg: rgba(255, 255, 255, 0.08);
    }
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Outfit', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    background-color: var(--bg-page);
    color: var(--text-main);
    min-height: 100vh;
    line-height: 1.65;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background:
        radial-gradient(60vw 50vh at 12% 8%, var(--aurora-1), transparent 60%),
        radial-gradient(55vw 45vh at 92% 18%, var(--aurora-3), transparent 60%),
        radial-gradient(70vw 55vh at 50% 110%, var(--aurora-2), transparent 65%);
}

body > * { position: relative; z-index: 1; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header.blog-header {
    padding: 1.25rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: color-mix(in oklab, var(--card-bg) 78%, transparent);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 10;
}

.blog-header .logo-link {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-main);
    text-decoration: none;
    font-weight: 700;
}

.blog-header .logo-container {
    position: relative;
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--accent);
    flex: 0 0 auto;
}

.blog-header .logo-container::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: conic-gradient(
        from 0deg,
        #ef4444,
        #f59e0b,
        #eab308,
        #22c55e,
        #06b6d4,
        #6366f1,
        #a855f7,
        #ec4899,
        #ef4444
    );
    -webkit-mask: radial-gradient(closest-side, transparent 70%, #000 71%, #000 99%, transparent 100%);
            mask: radial-gradient(closest-side, transparent 70%, #000 71%, #000 99%, transparent 100%);
    animation: rotateLogo 14s linear infinite;
    filter: saturate(1.05);
    z-index: 1;
}

.blog-header .logo-container::after {
    content: "";
    position: absolute;
    inset: 3px;
    border-radius: 50%;
    background: var(--card-bg);
    z-index: 1;
}

.blog-header .logo-bg {
    display: none;
}

.blog-header .logo-main {
    position: relative;
    width: 24px;
    height: 24px;
    z-index: 2;
}

@keyframes rotateLogo {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.blog-header .logo-mark {
    width: 36px; height: 36px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-soft);
    color: var(--accent);
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
}

.blog-header nav a {
    color: var(--text-soft);
    margin-left: 1.25rem;
    font-weight: 500;
    font-size: 0.95rem;
}
.blog-header nav a:hover { color: var(--accent); text-decoration: none; }
.blog-header nav a.cta {
    background: var(--accent);
    color: var(--button-text);
    padding: 0.5rem 0.95rem;
    border-radius: 999px;
    font-weight: 600;
}
.blog-header nav a.cta:hover { filter: brightness(1.08); }

main.blog-main {
    max-width: 760px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 4rem;
}

.crumbs {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}
.crumbs a { color: var(--text-muted); }
.crumbs a:hover { color: var(--accent); }

article h1 {
    font-size: clamp(1.85rem, 4vw, 2.6rem);
    line-height: 1.18;
    margin-bottom: 0.6rem;
    letter-spacing: -0.01em;
}

article .lede {
    font-size: 1.12rem;
    color: var(--text-soft);
    margin-bottom: 2rem;
}

article h2 {
    font-size: 1.4rem;
    margin-top: 2.4rem;
    margin-bottom: 0.75rem;
    letter-spacing: -0.005em;
}

article h3 {
    font-size: 1.1rem;
    margin-top: 1.6rem;
    margin-bottom: 0.5rem;
}

article p, article ul, article ol {
    margin-bottom: 1rem;
    color: var(--text-soft);
}

article ul, article ol {
    padding-left: 1.4rem;
}

article li { margin-bottom: 0.4rem; }

article blockquote {
    border-left: 3px solid var(--accent);
    padding: 0.4rem 1rem;
    margin: 1.4rem 0;
    color: var(--text-main);
    background: var(--accent-soft);
    border-radius: 0 8px 8px 0;
}

article code {
    background: var(--code-bg);
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    font-size: 0.92em;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.cta-card {
    margin: 2.4rem 0;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}
.cta-card .cta-text strong { display: block; font-size: 1.05rem; margin-bottom: 0.2rem; }
.cta-card .cta-text span { color: var(--text-muted); font-size: 0.95rem; }
.cta-card a.cta-btn {
    background: var(--accent);
    color: var(--button-text);
    padding: 0.7rem 1.3rem;
    border-radius: 999px;
    font-weight: 600;
    white-space: nowrap;
}
.cta-card a.cta-btn:hover { text-decoration: none; filter: brightness(1.08); }

.faq-block { margin-top: 2.4rem; }
.faq-block h2 { margin-bottom: 1rem; }
.faq-block details {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.85rem 1rem;
    margin-bottom: 0.6rem;
    background: var(--card-bg);
}
.faq-block summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--text-main);
}
.faq-block details[open] summary { margin-bottom: 0.5rem; }
.faq-block details p { margin: 0; color: var(--text-soft); }

.related {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}
.related h2 { font-size: 1.15rem; margin-bottom: 0.85rem; }
.related ul { list-style: none; padding: 0; }
.related li { margin-bottom: 0.45rem; }

footer.blog-footer {
    padding: 2rem 1.5rem 3rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}
footer.blog-footer a { color: var(--text-muted); }
footer.blog-footer a:hover { color: var(--accent); }

.post-list {
    list-style: none;
    padding: 0;
    display: grid;
    gap: 1rem;
}
.post-list li {
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    border-radius: 14px;
    padding: 1.1rem 1.25rem;
    transition: transform 0.15s ease, border-color 0.15s ease;
}
.post-list li:hover { transform: translateY(-2px); border-color: var(--accent); }
.post-list a { color: var(--text-main); display: block; }
.post-list a:hover { text-decoration: none; }
.post-list h3 { font-size: 1.1rem; margin-bottom: 0.3rem; color: var(--text-main); }
.post-list p { color: var(--text-muted); font-size: 0.95rem; margin: 0; }

@media (max-width: 600px) {
    header.blog-header { padding: 1rem; }
    .blog-header nav a { margin-left: 0.7rem; font-size: 0.88rem; }
    .blog-header nav a.cta { padding: 0.45rem 0.8rem; }
    main.blog-main { padding: 1.5rem 1rem 3rem; }
}