/* ============================================================
   SITE-WIDE PREMIUM ENHANCEMENTS
   Applies to ALL pages (blog, projects, etc.)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ---------- Design Tokens (global) ---------- */
:root {
    --sw-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --sw-font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --sw-radius: 12px;
    --sw-radius-sm: 8px;
    --sw-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --sw-accent: #6c5ce7;
    --sw-accent-light: #a855f7;
}

/* ============================================================
   1. GLOBAL TYPOGRAPHY
   ============================================================ */
.md-typeset {
    font-family: var(--sw-font) !important;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.md-typeset code,
.md-typeset pre code,
.md-typeset kbd {
    font-family: var(--sw-font-mono) !important;
}

/* Headings — tighter tracking, bolder */
.md-typeset h1 {
    font-weight: 800;
    letter-spacing: -0.02em;
}

.md-typeset h2 {
    font-weight: 700;
    letter-spacing: -0.015em;
}

.md-typeset h3,
.md-typeset h4 {
    font-weight: 600;
}

/* ============================================================
   2. GLASSMORPHIC HEADER
   Only adds blur + border. Does NOT override Material's native
   background/text colors to avoid the white-on-white bug.
   ============================================================ */
.md-header {
    backdrop-filter: blur(16px) saturate(160%) !important;
    -webkit-backdrop-filter: blur(16px) saturate(160%) !important;
    transition: box-shadow var(--sw-transition) !important;
}

[data-md-color-scheme="slate"] .md-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

[data-md-color-scheme="default"] .md-header {
    box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
}

/* Nav tabs — smoother hover */
.md-tabs {
    transition: background-color var(--sw-transition) !important;
}

.md-tabs__link {
    transition: color var(--sw-transition), opacity var(--sw-transition) !important;
}

.md-tabs__link:hover {
    opacity: 1 !important;
}

/* ============================================================
   3. READING PROGRESS BAR
   ============================================================ */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--sw-accent), var(--sw-accent-light), #ec4899);
    z-index: 9999;
    width: 0%;
    transition: width 0.1s linear;
    border-radius: 0 2px 2px 0;
    box-shadow: 0 0 10px rgba(108, 92, 231, 0.4);
}

/* ============================================================
   4. CONTENT FADE-IN ANIMATION
   ============================================================ */
.md-content__inner {
    animation: contentFadeIn 0.5s ease-out;
}

@keyframes contentFadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

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

/* ============================================================
   5. CODE BLOCKS — Premium
   ============================================================ */
.md-typeset pre {
    border-radius: var(--sw-radius) !important;
    position: relative;
    transition: box-shadow var(--sw-transition);
}

[data-md-color-scheme="slate"] .md-typeset pre {
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

[data-md-color-scheme="default"] .md-typeset pre {
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.md-typeset pre:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

/* Code copy button glow */
.md-clipboard {
    transition: color var(--sw-transition), background var(--sw-transition) !important;
    border-radius: var(--sw-radius-sm) !important;
}

.md-clipboard:hover {
    color: var(--sw-accent) !important;
    background: rgba(108, 92, 231, 0.1) !important;
}

/* Inline code styling */
.md-typeset :not(pre)>code {
    border-radius: 5px !important;
    padding: 2px 6px !important;
    transition: background var(--sw-transition);
    font-size: 0.82em !important;
}

[data-md-color-scheme="slate"] .md-typeset :not(pre)>code {
    background: rgba(255, 255, 255, 0.06) !important;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

[data-md-color-scheme="default"] .md-typeset :not(pre)>code {
    background: rgba(108, 92, 231, 0.06) !important;
    border: 1px solid rgba(108, 92, 231, 0.1);
}

/* ============================================================
   6. BLOG LISTING CARDS
   ============================================================ */
/* Post excerpt cards */
.md-post {
    border-radius: var(--sw-radius) !important;
    transition: transform var(--sw-transition), box-shadow var(--sw-transition), border-color var(--sw-transition) !important;
    overflow: hidden;
}

[data-md-color-scheme="slate"] .md-post {
    border: 1px solid rgba(255, 255, 255, 0.06) !important;
    background: rgba(15, 18, 30, 0.5) !important;
}

[data-md-color-scheme="default"] .md-post {
    border: 1px solid rgba(0, 0, 0, 0.07) !important;
    background: rgba(255, 255, 255, 0.7) !important;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.md-post:hover {
    transform: translateY(-4px);
}

[data-md-color-scheme="slate"] .md-post:hover {
    border-color: rgba(108, 92, 231, 0.3) !important;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

[data-md-color-scheme="default"] .md-post:hover {
    border-color: rgba(108, 92, 231, 0.2) !important;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

/* Blog post metadata — tags */
.md-typeset .md-tags a {
    border-radius: var(--sw-radius-sm) !important;
    transition: all var(--sw-transition) !important;
    font-size: 0.72em !important;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.md-typeset .md-tags a:hover {
    transform: translateY(-1px);
}

/* ============================================================
   7. ADMONITIONS — Glassmorphic
   ============================================================ */
.md-typeset .admonition,
.md-typeset details {
    border-radius: var(--sw-radius) !important;
    border-width: 1px !important;
    border-style: solid !important;
    overflow: hidden;
    transition: box-shadow var(--sw-transition), border-color var(--sw-transition);
}

[data-md-color-scheme="slate"] .md-typeset .admonition,
[data-md-color-scheme="slate"] .md-typeset details {
    backdrop-filter: blur(8px);
    background: rgba(15, 18, 30, 0.4) !important;
}

[data-md-color-scheme="default"] .md-typeset .admonition,
[data-md-color-scheme="default"] .md-typeset details {
    backdrop-filter: blur(8px);
    background: rgba(255, 255, 255, 0.6) !important;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.04);
}

.md-typeset .admonition:hover,
.md-typeset details:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

/* Admonition title bar — smoother */
.md-typeset .admonition>.admonition-title,
.md-typeset details>summary {
    border-radius: var(--sw-radius) var(--sw-radius) 0 0;
    font-weight: 600;
    letter-spacing: 0.01em;
}

/* Details expand/collapse animation */
.md-typeset details[open]>summary~* {
    animation: admonitionSlideIn 0.3s ease-out;
}

@keyframes admonitionSlideIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }

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

/* ============================================================
   8. IMAGES — Polished
   ============================================================ */
.md-typeset img:not([class]),
.md-typeset .md-content img {
    border-radius: var(--sw-radius-sm);
    transition: transform var(--sw-transition), box-shadow var(--sw-transition);
}

[data-md-color-scheme="slate"] .md-typeset img:not([class]),
[data-md-color-scheme="slate"] .md-typeset .md-content img {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

[data-md-color-scheme="default"] .md-typeset img:not([class]),
[data-md-color-scheme="default"] .md-typeset .md-content img {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.md-typeset img:not([class]):hover,
.md-typeset .md-content img:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    cursor: zoom-in;
}

/* ============================================================
   9. LINK HOVER EFFECTS
   ============================================================ */
.md-typeset a:not(.md-button):not(.md-nav__link):not(.md-source):not(.md-footer__link):not(.headerlink):not([class^="md-"]):not([class^="mdx-"]) {
    text-decoration: none;
    background-image: linear-gradient(var(--sw-accent), var(--sw-accent));
    background-size: 0% 2px;
    background-position: 0% 100%;
    background-repeat: no-repeat;
    transition: background-size var(--sw-transition), color var(--sw-transition);
    padding-bottom: 1px;
}

.md-typeset a:not(.md-button):not(.md-nav__link):not(.md-source):not(.md-footer__link):not(.headerlink):not([class^="md-"]):not([class^="mdx-"]):hover {
    background-size: 100% 2px;
}

/* ============================================================
   10. TOC — Active Gradient Indicator
   ============================================================ */
.md-sidebar--secondary .md-nav__link--active {
    color: var(--sw-accent) !important;
    font-weight: 600;
    position: relative;
}

.md-sidebar--secondary .md-nav__link {
    transition: color var(--sw-transition), padding-left var(--sw-transition);
    border-left: 2px solid transparent;
    padding-left: 12px;
}

.md-sidebar--secondary .md-nav__link--active {
    border-left: 2px solid var(--sw-accent);
    padding-left: 12px;
}

.md-sidebar--secondary .md-nav__link:hover {
    color: var(--sw-accent) !important;
}

/* ============================================================
   11. SCROLL TO TOP BUTTON
   ============================================================ */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid rgba(108, 92, 231, 0.3);
    background: rgba(108, 92, 231, 0.15);
    backdrop-filter: blur(12px);
    color: var(--sw-accent);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--sw-transition), transform var(--sw-transition), background var(--sw-transition), box-shadow var(--sw-transition);
    pointer-events: none;
}

.scroll-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.scroll-to-top:hover {
    background: rgba(108, 92, 231, 0.25);
    border-color: var(--sw-accent);
    box-shadow: 0 4px 20px rgba(108, 92, 231, 0.3);
    transform: translateY(-2px);
}

.scroll-to-top svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ============================================================
   12. FOOTER — Refined
   ============================================================ */
.md-footer {
    transition: background-color var(--sw-transition) !important;
}

[data-md-color-scheme="slate"] .md-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

[data-md-color-scheme="default"] .md-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.md-footer-meta {
    backdrop-filter: blur(12px);
}

/* Social links in footer */
.md-social__link {
    transition: transform var(--sw-transition), color var(--sw-transition) !important;
}

.md-social__link:hover {
    transform: translateY(-3px);
    color: var(--sw-accent) !important;
}

/* ============================================================
   13. SEARCH — Polished
   ============================================================ */
.md-search__form {
    border-radius: var(--sw-radius-sm) !important;
    transition: box-shadow var(--sw-transition) !important;
}

.md-search__form:focus-within {
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.2) !important;
}

[data-md-color-scheme="slate"] .md-search__form {
    background-color: rgba(255, 255, 255, 0.06) !important;
}

.md-search__output {
    border-radius: 0 0 var(--sw-radius-sm) var(--sw-radius-sm) !important;
}

/* ============================================================
   14. SIDEBAR NAV — Smooth
   ============================================================ */
.md-nav__link {
    transition: color var(--sw-transition), padding-left var(--sw-transition) !important;
    border-radius: 4px;
}

.md-nav__item--active>.md-nav__link {
    font-weight: 600 !important;
}

/* ============================================================
   15. ANNOUNCE BAR — Subtle
   ============================================================ */
.md-banner {
    font-size: 0.82rem;
    letter-spacing: 0.02em;
}

[data-md-color-scheme="slate"] .md-banner {
    background: rgba(108, 92, 231, 0.08);
    border-bottom: 1px solid rgba(108, 92, 231, 0.1);
}

[data-md-color-scheme="default"] .md-banner {
    background: rgba(108, 92, 231, 0.04);
    border-bottom: 1px solid rgba(108, 92, 231, 0.08);
}

/* ============================================================
   16. SELECTION COLOR
   ============================================================ */
::selection {
    background: rgba(108, 92, 231, 0.3);
    color: inherit;
}

::-moz-selection {
    background: rgba(108, 92, 231, 0.3);
    color: inherit;
}

/* ============================================================
   17. SCROLLBAR (Webkit)
   ============================================================ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

[data-md-color-scheme="slate"] ::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

[data-md-color-scheme="slate"] ::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.18);
}

[data-md-color-scheme="default"] ::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.12);
    border-radius: 4px;
}

[data-md-color-scheme="default"] ::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.2);
}

/* ============================================================
   18. TABLES — Polished
   ============================================================ */
.md-typeset table:not([class]) {
    border-radius: var(--sw-radius-sm);
    overflow: hidden;
    border-collapse: separate;
    border-spacing: 0;
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) {
    border: 1px solid rgba(255, 255, 255, 0.06);
}

[data-md-color-scheme="default"] .md-typeset table:not([class]) {
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.04);
}

.md-typeset table:not([class]) th {
    font-weight: 600;
    letter-spacing: 0.02em;
    font-size: 0.82em;
    text-transform: uppercase;
}

/* ============================================================
   19. SMOOTH SCROLLING
   ============================================================ */
html {
    scroll-behavior: smooth;
}

/* ============================================================
   20. PAGE TRANSITIONS — Navigation
   ============================================================ */
.md-main {
    transition: opacity 0.15s ease-out;
}

/* ============================================================
   RESPONSIVE REFINEMENTS
   ============================================================ */
@media (max-width: 768px) {
    .scroll-to-top {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 40px;
        height: 40px;
    }
}