:root {
    /* Layout & Sizes */
    --width-max: 1200px;
    --radius-lg: 12px;
    --radius-xl: 18px;
    --sidebar-offset: 80px;

    /* Typography */
    --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

    /* Animation */
    --transition-fast: 0.2s ease-out;
    --transition-slower: 0.35s ease-out;
    --transition-slowest: 0.5s ease-out;
}

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

html {
    -webkit-text-size-adjust: 100%;
}

html,
body {
    height: 100%;
    overflow-x: hidden;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

body.site {
    background: radial-gradient(circle at top, var(--bg-radial-start) 0, var(--bg) 45%, var(--bg-black) 100%);
    background-attachment: fixed;
    background-repeat: no-repeat;
    background-size: cover;
    background-color: var(--bg-black);
    color: var(--text);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-wrap: break-word;
    word-wrap: break-word;
    -ms-word-break: break-all;
    word-break: break-word;
}

img,
video,
iframe,
svg {
    max-width: 100%;
    height: auto;
    display: block;
}

/* --- Layout --- */
.site-main {
    flex: 1;
    min-width: 0;
}

.site-header {
    border-bottom: 1px solid var(--border);
    background: linear-gradient(90deg, var(--bg), var(--bg-header-end));
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-header);
}

.header-inner {
    max-width: var(--width-max);
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-inner a:hover {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-slowest);
    color: var(--accent);
}

/* Logo */
.logo a {
    text-decoration: none;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.logo-mark {
    color: var(--accent);
    font-size: 1.1rem;
}

.logo-text {
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-size: 0.95rem;
}

.logo-text-wrap {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-subtitle {
    font-weight: 400;
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    opacity: 1;
    margin-top: 0.15rem;
}

/* Navigation */
.main-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 1rem;
}

.main-nav a {
    position: relative;
    text-decoration: none;
    color: var(--muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding-bottom: 0.3rem;
    transition: color var(--transition-fast);
}

.main-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    height: 2px;
    width: 0;
    background: var(--accent);
    transition: width var(--transition-fast);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--text);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

/* Body layout */
.site-body {
    max-width: var(--width-max);
    margin: 2rem auto 3rem;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(260px, 1fr);
    gap: 2rem;
}

.site-sidebar {
    position: sticky;
    top: var(--sidebar-offset);
    align-self: start;
    min-width: 0;
}

/* Cards */
.post-card,
.post-single,
.page-single,
.archive-year {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: 1.6rem 1.8rem;
    border: 1px solid var(--border-card);
    box-shadow: var(--shadow-soft);
    margin-bottom: 1.4rem;
    max-width: 100%;
}

.post-card:hover {
    border-color: var(--accent-soft);
    transform: translateY(-2px);
    transition:
        transform var(--transition-fast),
        border-color var(--transition-fast),
        box-shadow var(--transition-fast);
}

/* Typography */
h1,
h2,
h3,
h4,
h5 {
    color: var(--text-white);
    margin-top: 0;
    line-height: 1.3;
}

.post-meta-top,
.post-meta-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.post-meta-top {
    margin-bottom: 1rem;
}

.post-meta-bottom nav {
    display: flex;
}

.post-title a,
.page-title {
    text-decoration: none;
    color: var(--text-white);
}

.post-title a:hover {
    transition: color var(--transition-slower);
    color: var(--accent);
}

h2.post-title {
    display: inline-flex;
    margin: 0;
}

/* Meta & tags */
.post-meta,
.post-tags,
.post-nav,
.archive-date {
    font-size: 0.85rem;
    color: var(--muted);
}

.post-nav {
    display: inline !important;
}

.meta-sep {
    margin: 0 0.5rem;
}

.post-tags a {
    color: var(--accent);
    text-decoration: none;
}

.post-tags a:hover {
    text-decoration: underline;
}

/* Excerpt */
.post-excerpt {
    margin: 0.8rem 0 1.1rem;
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Post content */
.post-content,
.page-content {
    margin-top: 1.3rem;
    min-width: 0;
}

.post-content a,
.page-content a {
    color: var(--accent);
    word-break: break-all;
}

.post-content a:hover,
.page-content a:hover {
    text-decoration: underline;
}

.post-content pre,
.post-content code {
    font-family: var(--font-mono);
}

.post-content pre {
    background: var(--bg-black);
    padding: 0.9rem 1rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-code);
    overflow-x: auto;
    white-space: pre;
    max-width: 100%;
}

/* Sidebar */
.sidebar-section {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 1.2rem 1.3rem;
    border: 1px solid var(--border-sidebar);
    box-shadow: var(--shadow-soft);
    margin-bottom: 1rem;
}

.sidebar-logo {
    text-align: center;
    margin-bottom: 1.5rem;
    line-height: 1;
}

.sidebar-logo img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    line-height: 1;
    max-width: 180px;
    max-height: 180px;
    margin: 0 auto;
}

.sidebar-section h3 {
    margin-top: 0;
    margin-bottom: 0.7rem;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent);
}

.sidebar-section ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-section li {
    margin-bottom: 0.4rem;
}

.sidebar-section a {
    color: var(--text-sidebar);
    text-decoration: none;
    font-size: 0.9rem;
}

.sidebar-section a:hover {
    color: var(--accent);
}

/* Archive */
.archive h1 {
    margin-bottom: 1.2rem;
}

.archive-year h2 {
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.4rem;
    margin-bottom: 0.8rem;
}

.archive-year ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.archive-year li {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 0.3rem;
}

.archive-date {
    min-width: 3rem;
    color: var(--muted);
}

/* Footer */
.site-footer {
    flex-shrink: 0;
    margin-top: auto;
    border-top: 1px solid var(--border);
    background: var(--bg);
}

.footer-inner {
    max-width: var(--width-max);
    margin: 0 auto;
    padding: 1rem 1.5rem 1.8rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--muted);
    font-size: 0.85rem;
}

.footer-right a {
    color: var(--accent);
    text-decoration: none;
    margin-left: 0.8rem;
}

.footer-right a:hover {
    text-decoration: underline;
}

/* Utility */
a {
    color: var(--accent);
}

a:hover {
    color: var(--accent-bright);
}

/* Encrypted post styles */
.encrypted-post {
    margin-top: 1.2rem;
    text-align: left;
}

.encrypted-message {
    font-size: 0.9rem;
    color: var(--muted);
    margin-bottom: 0.6rem;
}

.encrypted-form {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    margin: 2rem 0;
}

.encrypted-input-wrap {
    position: relative;
    width: auto;
}

.encrypted-input {
    width: 100%;
    min-width: 220px;
    max-width: 260px;
    border-radius: 999px;
    border: 1px solid var(--accent-soft);
    padding: 1.05rem 1rem 0.45rem;
    color: var(--text);
    outline: none;
    font-size: 0.9rem;
    transition:
        border-color var(--transition-fast),
        box-shadow var(--transition-fast),
        background var(--transition-fast),
        transform var(--transition-fast);

    box-shadow: 0 0 0 1px transparent;
    background: var(--bg-black);
}

.encrypted-input::placeholder {
    color: transparent;
}

.encrypted-label {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.85rem;
    color: var(--muted);
    pointer-events: none;
    transition:
        top 0.15s ease-out,
        transform 0.15s ease-out,
        font-size 0.15s ease-out,
        letter-spacing 0.15s ease-out,
        color 0.15s ease-out;
}

.encrypted-input:focus + .encrypted-label,
.encrypted-input:not(:placeholder-shown) + .encrypted-label {
    top: 0.15rem;
    transform: none;
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
}

.encrypted-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--focus-ring);
    background: var(--bg-black);
}

.encrypted-error {
    position: fixed;
    top: 1.25rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-tooltip);
    border-radius: 10px;
    padding: 0.7rem 1.3rem;
    border: 1px solid var(--accent);
    color: var(--text-white);
    font-size: 0.9rem;
    max-width: 90%;
    box-shadow: var(--shadow-tooltip);
    z-index: 9999;
    text-align: center;
}

.read-more,
.encrypted-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    border: 1px solid var(--accent-soft);
    color: var(--accent);
    background: transparent;
    text-decoration: none;
    cursor: pointer;
    transition:
        background var(--transition-fast),
        color var(--transition-fast),
        transform var(--transition-fast),
        box-shadow var(--transition-fast),
        opacity var(--transition-fast);
}

.read-more:hover,
.encrypted-button:hover:not(:disabled) {
    background: var(--accent);
    color: var(--text-white);
    box-shadow: 0 0 20px var(--focus-ring);
}

.encrypted-button:disabled {
    opacity: 0.6;
    cursor: default;
    box-shadow: none;
}

.encrypted-button {
    padding: 0.75rem 1rem;
}

.lock-mark {
    display: inline-flex;
    align-items: center;
    color: var(--accent);
    vertical-align: middle;
    margin-left: 0.3rem;
}

.lock-icon {
    width: 1rem;
    height: 1rem;
    fill: currentColor;
}

.archive-year .lock-mark .lock-icon {
    width: 1.3rem;
    height: 1.3rem;
}

.post-title .lock-mark .lock-icon {
    width: 1.7rem;
    height: 1.7rem;
    margin-top: -0.2rem;
}

.sidebar-section li .lock-mark {
    margin-right: 0.1rem;
}

.post-shortlink {
    display: flex;
    font-size: 0.85rem;
    color: var(--muted);
}

.post-shortlink-label {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.75rem;
    margin-right: 0.4rem;
    color: var(--accent);
}

.post-shortlink a {
    color: var(--accent);
    text-decoration: none;
    word-break: break-all;
}

.post-shortlink a:hover {
    text-decoration: underline;
}

.palette-switcher {
    width: 100%;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
}

.palette-switcher label {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.7rem;
    color: var(--muted);
}

.palette-switcher select {
    width: 100%;
    background: #050505;
    border-radius: 999px;
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 0.8rem;
    padding: 0.25rem 0.7rem;
    outline: none;
    cursor: pointer;
    transition:
        border-color var(--transition-fast),
        box-shadow var(--transition-fast),
        background var(--transition-fast);
}

.palette-switcher select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent-soft);
    background: #000;
}

figure {
    margin-left: 0;
    margin-right: 0;
    overflow: auto;
}

/* Tablet / Smaller Desktop (under 900px) */
@media (max-width: 900px) {
    :root {
        --sidebar-offset: 0;
    }

    .site-body {
        /* Force single column stack */
        grid-template-columns: minmax(0, 100%);
        gap: 3rem;
    }

    .site-sidebar {
        position: static;
        width: 100%;
        margin: 0;
        text-align: left;
    }

    .sidebar-section {
        text-align: left;
    }
}

/* Mobile (under 600px) */
@media (max-width: 600px) {
    /* Header layout changes removed here so it matches desktop */

    .header-inner {
        padding: 1rem; /* Slightly reduced padding */
    }

    .main-nav ul {
        gap: 0.8rem; /* Slightly reduced gap between links */
    }

    .site-body {
        margin: 1.5rem auto 2rem;
        padding: 0 1rem;
        gap: 2rem;
    }

    .post-card,
    .post-single,
    .page-single,
    .archive-year {
        padding: 1.2rem;
        border-radius: var(--radius-lg);
    }

    h1 {
        font-size: 1.6rem;
    }
    h2 {
        font-size: 1.4rem;
    }

    .post-meta-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .post-meta-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.8rem;
    }

    .footer-inner {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .footer-right a {
        margin: 0 0.5rem;
    }

    .encrypted-form {
        flex-direction: column;
        width: 100%;
    }

    .encrypted-input-wrap,
    .encrypted-button {
        width: 100%;
        max-width: 100%;
    }

    .encrypted-input {
        max-width: 100%;
    }
}