/* ============================================
   Kenneth Layton - Antigravity Theme (Refined)
   ============================================ */

/* === Color Palette === */
:root {
    /* Primary brand colors - Antigravity Twist */
    --kl-blue: #2962ff;
    /* Deep, electric blue */
    --kl-blue-light: #448aff;
    --kl-blue-dark: #0039cb;

    --kl-green: #00e676;
    /* Vibrant, neon green */
    --kl-green-light: #66ffa6;
    --kl-green-dark: #00b248;

    /* Refined Selection Color */
    --kl-highlight: #b3d8ff;
    /* Soft blue for selection */

    /* Surface Colors */
    --kl-bg: #f8f9fa;
    /* Slightly off-white background so cards stand out */
    --kl-surface: #ffffff;
    /* White cards on off-white bg */
    --kl-surface-hover: #f1f3f4;
    --kl-text: #202124;
    --kl-text-secondary: #5f6368;
    --kl-border: #dadce0;

    /* Link Color (Light Mode) */
    --kl-link: var(--kl-blue);

    /* Modern Accents */
    /* Toned down gradient for Hero */
    --kl-gradient: linear-gradient(135deg, #1a237e 0%, #283593 100%);
    --kl-gradient-text: linear-gradient(135deg, var(--kl-blue) 0%, var(--kl-green) 100%);

    --kl-glass: rgba(255, 255, 255, 0.9);
    --kl-glass-border: rgba(255, 255, 255, 0.4);

    /* Shadows - "Liftoff" feel (High Contrast for White-on-White) */
    --kl-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --kl-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    /* Much stronger shadow */
    --kl-shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.2);

    /* Override PaperMod defaults - Light mode */
    --radius: 24px;
    --gap: 32px;
    --content-gap: 32px;
    --nav-width: 1024px;
    --main-width: 1024px;
    --theme: #f8f9fa;
    --entry: #ffffff;

    /* Light mode code block background override */
    --code-block-bg: #f1f3f4;
    --code-bg: #e8eaed;
}

/* Dark mode adjustments */
:root[data-theme="dark"] {
    --kl-bg: #202124;
    --kl-surface: #202124;
    /* Match bg for consistency with light mode */
    --kl-surface-hover: #2d2e31;
    --kl-text: #e8eaed;
    --kl-text-secondary: #bdc1c6;
    /* Lighter gray for better contrast (WCAG AA) */
    --kl-border: #5f6368;
    /* Slightly lighter border for visibility on dark */

    /* Lighter Link Color for Dark Mode */
    --kl-link: #8ab4f8;
    /* Luminous blue for dark backgrounds */

    --kl-highlight: #174ea6;
    /* Darker blue for selection in dark mode */

    /* Brighter Gradient for Dark Mode Text */
    --kl-gradient-text: linear-gradient(135deg, #8ab4f8 0%, #66ffa6 100%);

    /* Dark Mode Glass - More opaque to match background */
    --kl-glass: rgba(32, 33, 36, 0.95);
    --kl-glass-border: rgba(255, 255, 255, 0.08);

    --kl-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3), 0 1px 3px 1px rgba(0, 0, 0, 0.15);
    --kl-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --kl-shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);

    /* Dark mode code block - keep PaperMod's dark theme */
    --code-block-bg: rgb(46, 46, 51);
    --code-bg: rgb(55, 56, 62);
}

/* === Typography === */
body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    letter-spacing: 0;
    color: var(--kl-text);
    background-color: var(--kl-bg) !important;
    /* Enforce white background */
    line-height: 1.6;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Outfit', system-ui, -apple-system, sans-serif;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--kl-text);
}

/* === Selection === */
::selection {
    background: var(--kl-highlight);
    color: inherit;
}

/* === Header === */
.nav {
    background: var(--kl-bg);
    border-bottom: 1px solid var(--kl-border);
    display: flex;
    justify-content: center;
}

.nav .logo {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo a {
    font-weight: 600;
    font-size: 1.5rem;
    color: var(--kl-text);
    letter-spacing: -0.03em;
    /* Ensure text is vertically centered */
    display: flex;
    align-items: center;
}

.logo a:hover {
    color: var(--kl-link);
}

/* Theme Toggle - Perfect Circle */
#theme-toggle {
    border-radius: 50%;
    width: 40px;
    height: 40px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease;
}

#theme-toggle:hover {
    background-color: var(--kl-surface-hover);
}

#menu {
    display: flex;
    align-items: center;
}

#menu a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--kl-text-secondary);
    border-radius: 20px;
    padding: 8px 16px;
    transition: all 0.2s ease;
}

#menu a:hover {
    background: var(--kl-surface-hover);
    color: var(--kl-link);
}

#menu a.active {
    background: rgba(41, 98, 255, 0.1);
    color: var(--kl-link);
}

/* === Cards (Antigravity Style) === */
.antigravity-card,
.post-entry {
    background: var(--kl-surface);
    border-radius: var(--radius);
    padding: 32px;
    margin-bottom: 32px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--kl-border);
    position: relative;
    overflow: hidden;
    box-shadow: var(--kl-shadow-sm);
}

.antigravity-card:hover,
.post-entry:hover {
    transform: translateY(-4px);
    box-shadow: var(--kl-shadow-hover);
    border-color: var(--kl-link);
}

/* Dark mode card styling */
:root[data-theme="dark"] .antigravity-card,
:root[data-theme="dark"] .post-entry {
    border: 1px solid var(--kl-border);
    box-shadow: none;
}

:root[data-theme="dark"] .antigravity-card:hover,
:root[data-theme="dark"] .post-entry:hover {
    box-shadow: var(--kl-shadow);
}

.antigravity-card .entry-header h2 {
    font-size: 1.75rem;
    margin-bottom: 12px;
    transition: color 0.2s ease;
}

.antigravity-card:hover .entry-header h2 {
    background: var(--kl-gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.antigravity-card .entry-content {
    color: var(--kl-text-secondary);
    font-size: 1.05rem;
    margin-bottom: 24px;
}

/* Read More Link (Implicit in card, but styling the entry-link) */
.entry-link {
    z-index: 10;
}

/* === Hero Section (Home Info) === */
.first-entry {
    background: transparent;
    box-shadow: none;
    padding: 64px 0;
    margin-bottom: 48px;
    border-bottom: 1px solid var(--kl-border);
    text-align: center;
    /* Optional: Center align hero text for impact */
}

.first-entry:hover {
    transform: none;
    box-shadow: none;
}

.first-entry .entry-header h1 {
    font-size: 3.5rem;
    margin-bottom: 24px;
    color: var(--kl-text);
    /* Solid color for cleaner look */
    background: none;
    -webkit-text-fill-color: initial;
    line-height: 1.1;
    font-weight: 700;
}

.first-entry .entry-content {
    color: var(--kl-text-secondary);
    font-size: 1.35rem;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

/* === Single Post === */
.post-hero {
    margin-bottom: 48px;
    text-align: center;
}

.post-title {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 16px;
    color: var(--kl-text);
    /* Solid color for cleaner look */
    background: none;
    -webkit-text-fill-color: initial;
}

.post-description {
    font-size: 1.25rem;
    color: var(--kl-text-secondary);
    max-width: 800px;
    margin: 0 auto 24px;
}

.post-meta {
    color: var(--kl-text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.post-content {
    font-size: 1.125rem;
    line-height: 1.8;
}

.post-content h2 {
    font-size: 2rem;
    margin-top: 48px;
    margin-bottom: 24px;
    color: var(--kl-text);
}

.post-content h3 {
    font-size: 1.5rem;
    margin-top: 32px;
    margin-bottom: 16px;
}

.post-content a {
    color: var(--kl-link);
    text-decoration: none;
    border-bottom: 2px solid rgba(41, 98, 255, 0.2);
    transition: all 0.2s ease;
}

.post-content a:hover {
    border-bottom-color: var(--kl-green);
}

    /* === Code Blocks === */
    .post-content pre {
    background: var(--code-block-bg) !important;
        border-radius: 16px;
        padding: 24px;
        margin: 32px 0;
        box-shadow: var(--kl-shadow-sm);
        border: 1px solid var(--kl-border);
    }

.post-content code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.9em;
}

.post-content pre code {
    background: transparent !important;
    color: var(--kl-text);
}

/* Light mode: Override PaperMod's dark Chroma theme */
:root:not([data-theme="dark"]) .chroma {
    background-color: var(--code-block-bg) !important;
    color: #24292e;
}

:root:not([data-theme="dark"]) .highlight {
    background: var(--code-block-bg) !important;
}

:root:not([data-theme="dark"]) .post-content pre code {
    color: #24292e;
}

/* Light Mode Syntax Highlighting (GitHub Light inspired) */
:root:not([data-theme="dark"]) .chroma .k,
:root:not([data-theme="dark"]) .chroma .kc,
:root:not([data-theme="dark"]) .chroma .kd,
:root:not([data-theme="dark"]) .chroma .kn,
:root:not([data-theme="dark"]) .chroma .kp,
:root:not([data-theme="dark"]) .chroma .kr,
:root:not([data-theme="dark"]) .chroma .kt,
:root:not([data-theme="dark"]) .chroma .nt {
        color: #d73a49;
        font-weight: 600;
    }

:root:not([data-theme="dark"]) .chroma .n,
:root:not([data-theme="dark"]) .chroma .nx,
:root:not([data-theme="dark"]) .chroma .py,
:root:not([data-theme="dark"]) .chroma .nv,
:root:not([data-theme="dark"]) .chroma .vc,
:root:not([data-theme="dark"]) .chroma .vg,
:root:not([data-theme="dark"]) .chroma .vi {
        color: #24292e;
    }

:root:not([data-theme="dark"]) .chroma .nf,
:root:not([data-theme="dark"]) .chroma .fm,
:root:not([data-theme="dark"]) .chroma .nc,
:root:not([data-theme="dark"]) .chroma .no,
:root:not([data-theme="dark"]) .chroma .nd,
:root:not([data-theme="dark"]) .chroma .ni,
:root:not([data-theme="dark"]) .chroma .ne,
:root:not([data-theme="dark"]) .chroma .nn {
        color: #6f42c1;
    }

:root:not([data-theme="dark"]) .chroma .s,
:root:not([data-theme="dark"]) .chroma .sa,
:root:not([data-theme="dark"]) .chroma .sb,
:root:not([data-theme="dark"]) .chroma .sc,
:root:not([data-theme="dark"]) .chroma .dl,
:root:not([data-theme="dark"]) .chroma .sd,
:root:not([data-theme="dark"]) .chroma .s2,
:root:not([data-theme="dark"]) .chroma .se,
:root:not([data-theme="dark"]) .chroma .sh,
:root:not([data-theme="dark"]) .chroma .si,
:root:not([data-theme="dark"]) .chroma .sx,
:root:not([data-theme="dark"]) .chroma .sr,
:root:not([data-theme="dark"]) .chroma .s1,
:root:not([data-theme="dark"]) .chroma .ss {
        color: #032f62;
    }

:root:not([data-theme="dark"]) .chroma .m,
:root:not([data-theme="dark"]) .chroma .mb,
:root:not([data-theme="dark"]) .chroma .mf,
:root:not([data-theme="dark"]) .chroma .mh,
:root:not([data-theme="dark"]) .chroma .mi,
:root:not([data-theme="dark"]) .chroma .il,
:root:not([data-theme="dark"]) .chroma .mo {
        color: #005cc5;
    }

:root:not([data-theme="dark"]) .chroma .c,
:root:not([data-theme="dark"]) .chroma .ch,
:root:not([data-theme="dark"]) .chroma .cm,
:root:not([data-theme="dark"]) .chroma .c1,
:root:not([data-theme="dark"]) .chroma .cs,
:root:not([data-theme="dark"]) .chroma .cp,
:root:not([data-theme="dark"]) .chroma .cpf {
        color: #6a737d;
        font-style: italic;
    }

:root:not([data-theme="dark"]) .chroma .o,
:root:not([data-theme="dark"]) .chroma .ow {
        color: #d73a49;
        font-weight: bold;
    }

    /* Inline code */
.post-content p code,
.post-content li code {
        background: rgba(41, 98, 255, 0.1);
        color: var(--kl-blue-dark);
        padding: 2px 6px;
        border-radius: 6px;
    }

:root[data-theme="dark"] .post-content p code,
:root[data-theme="dark"] .post-content li code {
        background: rgba(41, 98, 255, 0.2);
        color: var(--kl-blue-light);
    }

    /* === Footer === */
    .footer {
        padding: 48px 0;
        margin-top: 64px;
        color: var(--kl-text-secondary);
        text-align: center;
    }

    .footer a {
        color: var(--kl-text);
        font-weight: 500;
    }

    .footer a:hover {
        color: var(--kl-link);
    }

    /* === Buttons & Pagination === */
.pagination a {
        background: var(--kl-surface);
        color: var(--kl-text);
        border-radius: 24px;
        padding: 12px 24px;
        font-weight: 500;
        transition: all 0.2s ease;
        display: inline-block;
        text-decoration: none;
        box-shadow: var(--kl-shadow-sm);
    border: 1px solid var(--kl-border);
    }

.pagination a:hover {
        transform: translateY(-2px);
        box-shadow: var(--kl-shadow-hover);
    border-color: var(--kl-link);
    }

    /* Specific styles for Post Nav (Prev/Next on single pages) */
    .paginav {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    margin-top: 48px !important;
    padding: 24px 0 0 0 !important;
    border: none !important;
    border-top: 1px solid var(--kl-border) !important;
    border-radius: 0 !important;
    background: transparent !important;
    gap: 24px !important;
    line-height: 1.4 !important;
    }

    .paginav a {
    display: inline-flex !important;
    flex-direction: column !important;
    gap: 2px !important;
    padding: 0 !important;
    color: var(--kl-text-secondary) !important;
    font-size: 0.9rem !important;
    font-weight: 500 !important;
    text-decoration: none !important;
    transition: color 0.2s ease !important;
    background: transparent !important;
    border: none !important;
    border-radius: 0 !important;
    width: auto !important;
}

.paginav a:hover {
    color: var(--kl-link) !important;
    background: transparent !important;
    box-shadow: none !important;
}

.paginav .prev,
.paginav .next {
    width: auto !important;
}

.paginav .prev {
    align-items: flex-start !important;
    }

    .paginav .next {
    margin-left: auto !important;
    text-align: right !important;
    align-items: flex-end !important;
    }

    .paginav .title {
    display: block !important;
    font-size: 0.75rem !important;
    color: var(--kl-text-secondary) !important;
    text-transform: uppercase !important;
    letter-spacing: 0.05em !important;
    font-weight: 600 !important;
    }

    .paginav a:hover .title {
    color: var(--kl-link) !important;
}

.paginav span:not(.title) {
    color: var(--kl-text) !important;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.paginav a:hover span:not(.title) {
    color: var(--kl-link) !important;
}

.paginav span:hover:not(.title) {
    box-shadow: none !important;
    }

    /* === Tags === */
.post-tags a,
.terms-tags a {
        background: rgba(41, 98, 255, 0.1);
        color: var(--kl-link);
        padding: 6px 16px;
        border-radius: 20px;
        font-size: 0.85rem;
        font-weight: 600;
        transition: all 0.2s ease;
    }

.post-tags a:hover,
.terms-tags a:hover {
        background: var(--kl-link);
        color: white;
    }

/* Tags page layout */
.terms-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding: 0;
    list-style: none;
}

.terms-tags li {
    margin: 0;
}

/* === Table of Contents === */
.toc details summary,
.toc details[open] summary {
    cursor: pointer !important;
}

/* === Animations === */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.main {
    animation: fadeInUp 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* === Links & Buttons === */
a {
    color: var(--kl-link);
    transition: color 0.25s ease, transform 0.2s ease;
}

a:hover {
    color: var(--kl-green);
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */

/* Tablet (max-width: 768px) */
@media screen and (max-width: 768px) {
    :root {
        --radius: 16px;
        --gap: 20px;
        --content-gap: 20px;
    }

    /* Hero section */
    .first-entry {
        padding: 40px 0;
        margin-bottom: 32px;
    }

    .first-entry .entry-header h1 {
        font-size: 2.5rem;
    }

    .first-entry .entry-content {
        font-size: 1.1rem;
    }

    /* Post title */
    .post-title {
        font-size: 2rem;
    }

    .post-content h2 {
        font-size: 1.5rem;
        margin-top: 32px;
    }

    .post-content h3 {
        font-size: 1.25rem;
    }

    /* Cards */
    .antigravity-card,
    .post-entry {
        padding: 20px;
        margin-bottom: 20px;
    }

    .antigravity-card .entry-header h2,
    .post-entry .entry-header h2 {
        font-size: 1.4rem;
    }

    /* Navigation */
    #menu a {
        padding: 6px 12px;
        font-size: 0.9rem;
    }

    .logo a {
        font-size: 1.25rem;
    }

    /* Paginav */
    .paginav {
        gap: 16px !important;
    }

    .paginav span:not(.title) {
        max-width: 180px;
    }
}

/* Mobile (max-width: 480px) */
@media screen and (max-width: 480px) {
    :root {
        --radius: 12px;
        --gap: 16px;
        --content-gap: 16px;
    }

    /* Hero section */
    .first-entry {
        padding: 32px 0;
        margin-bottom: 24px;
    }

    .first-entry .entry-header h1 {
        font-size: 2rem;
    }

    .first-entry .entry-content {
        font-size: 1rem;
    }

    /* Post title */
    .post-title {
        font-size: 1.75rem;
    }

    .post-description {
        font-size: 1rem;
    }

    .post-content {
        font-size: 1rem;
    }

    .post-content h2 {
        font-size: 1.35rem;
        margin-top: 28px;
        margin-bottom: 16px;
    }

    .post-content h3 {
        font-size: 1.15rem;
    }

    /* Cards */
    .antigravity-card,
    .post-entry {
        padding: 16px;
        margin-bottom: 16px;
    }

    .antigravity-card .entry-header h2,
    .post-entry .entry-header h2 {
        font-size: 1.25rem;
    }

    .antigravity-card .entry-content,
    .post-entry .entry-content {
        font-size: 0.95rem;
    }

    /* Navigation */
    .nav {
        padding: 0 12px;
    }

    #menu {
        gap: 4px;
    }

    #menu a {
        padding: 6px 10px;
        font-size: 0.85rem;
    }

    .logo a {
        font-size: 1.1rem;
    }

    /* Paginav - stack vertically */
    .paginav {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 12px !important;
    }

    .paginav .prev,
    .paginav .next {
        text-align: left !important;
        align-items: flex-start !important;
    }

    .paginav .next {
        margin-left: 0 !important;
    }

    .paginav span:not(.title) {
        max-width: 100%;
    }

    /* Tags */
    .post-tags a,
    .terms-tags a {
        padding: 5px 12px;
        font-size: 0.8rem;
    }

    .terms-tags {
        gap: 8px;
    }

    /* Footer */
    .footer {
        padding: 32px 0;
        margin-top: 40px;
        font-size: 0.85rem;
    }

    /* Table of Contents */
    .toc {
        font-size: 0.9rem;
    }
}