:root {
    /* Theme Colors */
    --bg-color: #F3E5D8;
    --text-color: #363636;
    --text-color-muted: #7a7a7a;
    --header-bg: #4A4A4A;
    --header-text: #FFFFFF;

    /* Default Palette (will be overwritten by JS) */
    --primary-color: #E6E5D8;
    --primary-color-glow: rgba(230, 229, 216, 0.5);
    --accent-color-light: #CCCCFF;
    --accent-color-dark: #FFE4E6;

    /* Fonts */
    --font-pixel: 'VT323', monospace;

    /* Motion System */
    --dur-fast: 180ms;   /* buttons */
    --dur-med: 300ms;    /* cards, nav */
    --dur-slow: 600ms;   /* intro, reveals */
    --ease-spring: cubic-bezier(0.22, 1, 0.36, 1);

    /* Vignette / Silhouette Overlay */
    --vignette-opacity: 0.05; /* light mode subtle */
    /* Subtle multi-radial background glow (light) */
    --glow-1: rgba(153, 153, 255, 0.12); /* soft indigo */
    --glow-2: rgba(255, 153, 204, 0.10); /* soft pink */
    --glow-3: rgba(255, 255, 255, 0.08); /* neutral lift */
}

/* Smooth theme switching */
/* Fallback transitions when JS adds .theme-transition on <html> */
html.theme-transition, html.theme-transition body, html.theme-transition header, html.theme-transition .y2k-window, html.theme-transition .project-card, html.theme-transition .blog-post-card, html.theme-transition .blog-post-preview, html.theme-transition .contact-link-btn, html.theme-transition .icon-button {
    transition: background-color var(--dur-med) var(--ease-spring),
                color var(--dur-med) var(--ease-spring),
                border-color var(--dur-med) var(--ease-spring),
                box-shadow var(--dur-med) var(--ease-spring),
                fill var(--dur-med) var(--ease-spring),
                stroke var(--dur-med) var(--ease-spring),
                outline-color var(--dur-med) var(--ease-spring),
                text-decoration-color var(--dur-med) var(--ease-spring),
                opacity var(--dur-med) var(--ease-spring);
}

/* SPA Page Transitions */
.page-section {
    transition: opacity var(--dur-med) var(--ease-spring),
                transform var(--dur-med) var(--ease-spring);
}

.page-section[style*="display: none"] {
    opacity: 0;
    transform: translateY(20px);
}

.page-section[style*="display: block"] {
    opacity: 1;
    transform: translateY(0);
}

/* Main content transition for page changes */
#main-content.page-transition .page-section {
    transition: opacity var(--dur-med) var(--ease-spring),
                transform var(--dur-med) var(--ease-spring);
}

/* Make vignette/glow fade feel smoother during theme switch */
html.theme-transition html::before {
    transition: opacity var(--dur-slow) var(--ease-spring), background var(--dur-slow) linear;
}

/* View Transitions API tuning (supports Chrome/Edge, Safari TP) */
::view-transition-old(root),
::view-transition-new(root) {
    animation-duration: var(--dur-slow);
    animation-timing-function: var(--ease-spring);
}

/* Reduce motion: disable heavy transitions */
@media (prefers-reduced-motion: reduce) {
    html.theme-transition, html.theme-transition * {
        transition: none !important;
    }
    ::view-transition-old(root),
    ::view-transition-new(root) {
        animation: none !important;
    }
}

/* Dark Theme Overrides */
[data-theme="dark"] {
    --bg-color: #0f1115;
    --text-color: #e6e6e6;
    --text-color-muted: #a3a3a3;
    --header-bg: #1b1f2a;
    --header-text: #f5f7ff;
    --primary-color: #171a22;
    --primary-color-glow: rgba(102, 90, 255, 0.25);
    --accent-color-light: #9aa4ff;
    --accent-color-dark: #ffb3c1;
    --vignette-opacity: 0.28; /* stronger in dark mode */
    /* Glows tuned for dark */
    --glow-1: rgba(102, 90, 255, 0.12);
    --glow-2: rgba(255, 140, 180, 0.10);
    --glow-3: rgba(255, 255, 255, 0.06);
}

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

html {
    scroll-behavior: smooth;
    /* Enable document transitions target */
    view-transition-name: root; /* for View Transitions API */
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-pixel);
    font-size: 20px; /* Improved readability */
    line-height: 1.7;
}

/* Removed scrolling glow layer; background is now fixed on body */
#main-content {
    position: relative;
}

/* Fixed multi-radial glow overlay (universal, behind everything) */
html::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 50; /* below vignette, above page background */
    background:
        radial-gradient(50vw 35vh at 15% 10%, var(--glow-1), transparent 60%),
        radial-gradient(45vw 30vh at 85% 15%, var(--glow-2), transparent 65%),
        radial-gradient(60vw 40vh at 50% 85%, var(--glow-3), transparent 70%);
    background-repeat: no-repeat;
    background-position: 15% 10%, 85% 15%, 50% 85%;
}

/* Site-wide vignette overlay: subtle top & bottom fade */
html::after {
    content: '';
    position: fixed;
    inset: 0; /* fixed to viewport */
    pointer-events: none;
    z-index: 500; /* above main content, below header(1001)/menus/modals */
    background-image:
        linear-gradient(to bottom,
            rgba(0, 0, 0, var(--vignette-opacity)) 0%,
            rgba(0, 0, 0, calc(var(--vignette-opacity) * 0.55)) 40%,
            rgba(0, 0, 0, calc(var(--vignette-opacity) * 0.25)) 70%,
            rgba(0, 0, 0, 0) 100%),
        linear-gradient(to top,
            rgba(0, 0, 0, var(--vignette-opacity)) 0%,
            rgba(0, 0, 0, calc(var(--vignette-opacity) * 0.55)) 40%,
            rgba(0, 0, 0, calc(var(--vignette-opacity) * 0.25)) 70%,
            rgba(0, 0, 0, 0) 100%);
    background-repeat: no-repeat;
    background-size: 100% 12%, 100% 10%;
    background-position: top, bottom;
    filter: none; /* keep crisp gradient */
}

/* Theme toggle button (sun/moon) */
.theme-toggle {
    position: relative;
    /* Match .icon-button sizing to align perfectly in navbar */
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--header-bg);
    color: var(--header-text);
    box-shadow: 4px 4px 0px #00000040; /* match .icon-button */
    transition: all var(--dur-fast) var(--ease-spring);
}

.theme-toggle .sun, .theme-toggle .moon {
    transition: opacity var(--dur-med) var(--ease-spring), transform var(--dur-med) var(--ease-spring);
}

.theme-toggle .sun { opacity: 1; transform: rotate(0deg) scale(1); }
.theme-toggle .moon { opacity: 0; transform: rotate(-30deg) scale(0.8); }

[data-theme="dark"] .theme-toggle .sun { opacity: 0; transform: rotate(30deg) scale(0.8); }
[data-theme="dark"] .theme-toggle .moon { opacity: 1; transform: rotate(0deg) scale(1); }

/* Tiny twinkle around the toggle */
.theme-toggle::after {
    content: '';
    position: absolute;
    inset: -6px;
    pointer-events: none;
    background: radial-gradient(12px 12px at 20% 30%, rgba(255,255,255,0.15), transparent 60%),
                radial-gradient(10px 10px at 75% 70%, rgba(153,153,255,0.2), transparent 60%);
    filter: blur(2px);
    opacity: 0.8;
}

/* Align interactions with .icon-button */
.theme-toggle:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 5px 5px 0px #00000060;
    filter: brightness(1.1);
}

.theme-toggle:active {
    transform: translate(2px, 2px) scale(0.97);
    box-shadow: 1px 1px 0px #00000040;
}

.theme-toggle:focus-visible {
    outline: 2px solid rgba(204, 204, 255, 0.9);
    outline-offset: 3px;
}

/* Responsive sizing to mirror .icon-button rules from components.css */
@media (max-width: 480px) {
  .theme-toggle {
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
  }
}

@media (max-width: 320px) {
  .theme-toggle {
    width: 36px;
    height: 36px;
    min-width: 36px;
    min-height: 36px;
  }
}

/* =============================
   Global Button Interactions
   Targets existing buttons/links site-wide
   ============================= */

/* =============================
   Scroll Reveal Utilities
   ============================= */
.reveal {
    opacity: 0;
    transform: translateY(16px);
    will-change: opacity, transform;
}

.reveal.reveal-in {
    opacity: 1;
    transform: none;
    transition: opacity var(--dur-med) var(--ease-spring),
                transform var(--dur-med) var(--ease-spring);
}

/* Reduced motion: show content without animation */
@media (prefers-reduced-motion: reduce) {
    .reveal,
    .reveal.reveal-in {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
}

/* Base: make buttons ripple-ready */
button,
.view-all-btn,
.read-more,
.read-full-post,
.contact-link-btn,
.modal-close,
.icon-button,
#skip-intro,
.blog-modal .modal-close {
    position: relative;
    overflow: hidden; /* contain ripple */
    transition: transform 200ms ease, box-shadow 200ms ease, filter 200ms ease;
    will-change: transform;
}

/* Hover: subtle lift + brightness */
button:hover,
.view-all-btn:hover,
.read-more:hover,
.read-full-post:hover,
.contact-link-btn:hover,
.modal-close:hover,
.icon-button:hover,
#skip-intro:hover {
    transform: translateY(-2px) scale(1.03);
    filter: brightness(1.06);
}

/* Active: pressed pixel feel */
button:active,
.view-all-btn:active,
.read-more:active,
.read-full-post:active,
.contact-link-btn:active,
.modal-close:active,
.icon-button:active,
#skip-intro:active {
    transform: translate(2px, 2px) scale(0.98);
    box-shadow: 1px 1px 0px #00000040 !important;
}

/* Focus-visible: accessible ring */
button:focus-visible,
.view-all-btn:focus-visible,
.read-more:focus-visible,
.read-full-post:focus-visible,
.contact-link-btn:focus-visible,
.modal-close:focus-visible,
.icon-button:focus-visible,
#skip-intro:focus-visible {
    outline: 2px solid rgba(204, 204, 255, 0.9);
    outline-offset: 3px;
}

/* Ripple element */
.ripple {
    position: absolute;
    border-radius: 50%;
    transform: scale(0);
    pointer-events: none;
    mix-blend-mode: screen;
    background: radial-gradient(circle,
        rgba(255,255,255,0.35) 0%,
        rgba(255,255,255,0.2) 40%,
        rgba(255,255,255,0) 70%);
    animation: ripple-expand 600ms ease-out;
}

@keyframes ripple-expand {
    to { transform: scale(4); opacity: 0; }
}

/* Reduced motion: no transforms/animation */
@media (prefers-reduced-motion: reduce) {
    button,
    .view-all-btn,
    .read-more,
    .read-full-post,
    .contact-link-btn,
    .modal-close,
    .icon-button,
    #skip-intro {
        transition: none;
    }
    .ripple { display: none !important; }
}

/* Blog Styles */
.blog-preview {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.blog-posts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.blog-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.blog-post-preview,
.blog-post-card {
    transition: transform var(--dur-med) var(--ease-spring);
}

.blog-post-preview:hover,
.blog-post-card:hover {
    transform: translateY(-5px);
}

.blog-card {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.blog-card .window-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Make blog cards look like project cards */
.blog-post-card .y2k-window.blog-card {
    background: var(--primary-color);
    border: 3px solid var(--text-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 5px 5px 0px #00000040;
    transition: all var(--dur-med) var(--ease-spring);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.blog-post-card:hover .y2k-window.blog-card {
    box-shadow: 8px 8px 0px #00000050;
}

.blog-post-card .window-content {
    padding: 20px;
}

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

.post-meta time {
    color: var(--text-color-muted);
    font-size: 0.8em;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.blog-post-preview h3,
.blog-post-card h2 {
    margin-bottom: 1rem;
    line-height: 1.3;
}

.blog-post-preview h3 a {
    color: var(--text-color);
    text-decoration: none;
    transition: color var(--dur-med) var(--ease-spring);
}

.blog-post-preview h3 a:hover {
    color: var(--accent-color-light);
    text-shadow: 0 0 10px var(--primary-color-glow);
}

.post-excerpt {
    flex: 1;
    margin-bottom: 1.5rem;
    font-size: 0.85em;
    line-height: 1.6;
    color: var(--text-color-muted);
}

.read-more,
.read-full-post {
    align-self: flex-start;
    padding: 0.5rem 1rem;
    background-color: var(--header-bg);
    color: var(--header-text);
    text-decoration: none;
    border: none;
    border-radius: 10px;
    font-family: var(--font-pixel);
    font-size: 0.8em;
    cursor: pointer;
    transition: all var(--dur-fast) var(--ease-spring);
    box-shadow: 4px 4px 0px #00000040;
}

.read-more:hover,
.read-full-post:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 5px 5px 0px #00000060;
    filter: brightness(1.1);
}

.view-all-btn {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--header-bg);
    color: var(--header-text);
    text-decoration: none;
    border-radius: 10px;
    font-family: var(--font-pixel);
    font-size: 0.9em;
    text-align: center;
    transition: all var(--dur-fast) var(--ease-spring);
    box-shadow: 4px 4px 0px #00000040;
    border: none;
}

.view-all-btn:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 5px 5px 0px #00000060;
    filter: brightness(1.1);
}

.view-all-btn:active,
.read-more:active,
.read-full-post:active {
    transform: translate(2px, 2px) scale(0.97);
    box-shadow: 1px 1px 0px #00000040;
}

.blog-actions {
    text-align: center;
    margin-top: 1rem;
}

.post-content {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--accent-color-light);
}

.modal-content .post-full-content h2,
.modal-content .post-full-content h3,
.post-full-content h2,
.post-full-content h3 {
    margin: 2rem 0 1rem 0;
    color: var(--text-color);
    background: none;
    padding: 0;
    display: block;
    font-weight: bold;
}

.post-full-content p {
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.post-full-content ul,
.post-full-content ol {
    margin: 1rem 0 1.5rem 2rem;
}

.post-full-content li {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.post-full-content strong {
    color: var(--text-color);
    font-weight: bold;
}

.post-full-content pre {
    background: var(--header-bg);
    padding: 1.5rem;
    border-radius: 10px;
    overflow-x: auto;
    margin: 1.5rem 0;
    border: 2px solid var(--text-color);
    box-shadow: 4px 4px 0px #00000040;
}

.post-full-content code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8em;
    line-height: 1.4;
    color: var(--header-text);
}

.post-full-content em {
    color: var(--text-color);
    font-style: italic;
    font-weight: bold;
}

.error {
    color: #ff6b6b;
    text-align: center;
    padding: 2rem;
    background: rgba(255, 107, 107, 0.1);
    border-radius: 10px;
    border: 1px solid rgba(255, 107, 107, 0.3);
}

/* Blog Modal Styles */
.blog-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.6);
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(10px);
}

.blog-modal.active {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    animation: modalFadeIn var(--dur-med) var(--ease-spring);
}

.modal-content {
    background: var(--bg-color);
    border: 3px solid var(--text-color);
    border-radius: 12px;
    box-shadow: 8px 8px 0px #00000050;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    margin-top: 2rem;
    animation: modalSlideIn var(--dur-med) var(--ease-spring);
    color: var(--text-color);
}

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 2px solid var(--text-color);
    background: var(--bg-color);
    border-radius: 9px 9px 0 0;
    position: sticky;
    top: 0;
    z-index: 11;
}

.modal-title {
    font-size: 1.2em;
    margin: 0;
    color: var(--header-text);
    font-weight: bold;
    padding-right: 4rem;
    display: block;
}

.modal-close {
    background: var(--header-bg);
    color: var(--header-text);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    font-family: var(--font-pixel);
    font-size: 1.2em;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--dur-fast) var(--ease-spring);
    box-shadow: 3px 3px 0px #00000040;
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 10;
}

.modal-close:hover {
    transform: translateY(-2px) scale(1.1);
    box-shadow: 4px 4px 0px #00000060;
    filter: brightness(1.1);
}

.modal-close:active {
    transform: translate(1px, 1px) scale(0.95);
    box-shadow: 1px 1px 0px #00000040;
}

.modal-body {
    padding: 2rem;
    line-height: 1.6;
    color: var(--text-color);
}

.modal-meta {
    color: var(--text-color-muted);
    font-size: 0.8em;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Modal animations */
@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px) scale(0.9);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

main {
    display: flex;
    justify-content: center;
    padding: 100px 30px 60px;
    margin-left: 90px; /* Same as header width */
}
