:root {
    --dohna-bg: #1a1a2e;
    --dohna-bg-dark: #0f0f1a;
    --dohna-pink: #ff33a8;
    --dohna-cyan: #33ffff;
    --dohna-yellow: #f2f23a;
    --text-color: #ffffff;
    --text-muted: #b8b8b8;
    --font-display: "Teko", sans-serif;
    --font-body: "Noto Sans JP", sans-serif;
    --border-radius: 8px;
    --transition-speed: 0.3s;
}

html, body {
    overflow-x: hidden;
}

body {
    background:
        repeating-linear-gradient(0deg, rgba(0,0,0,0.3) 0, rgba(0,0,0,0.3) 1px, transparent 1px, transparent 3px),
        var(--dohna-bg);
    color: var(--text-color);
    font-family: var(--font-body);
    margin: 0;
    min-height: 100vh;
}

a {
  color: var(--dohna-yellow);
  text-decoration: none;
}
a:hover {
  color: var(--dohna-pink);
}

.page-wrapper {
    display: grid;
    grid-template-areas:
        "header"
        "main";
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    min-height: 100vh;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .page-wrapper {
        padding: 2rem;
        gap: 2rem;
    }
}

.main-header {
    grid-area: header;
    position: relative;
    padding: 0.5rem 1rem;
    border: 3px solid var(--dohna-pink);
    border-radius: var(--border-radius);
    animation: slideInDown 0.4s 0.2s both;
    isolation: isolate;
}

@media (min-width: 768px) {
    .main-header {
        padding: 0.5rem 2rem;
    }
}
.main-header::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--dohna-bg-dark);
    transform: skewX(-30deg);
    z-index: -1;
}

.main-header::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(0deg, rgba(0,0,0,0.3) 0, rgba(0,0,0,0.3) 1px, transparent 1px, transparent 3px);
    pointer-events: none;
    z-index: 1;
    border-radius: var(--border-radius);
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}
.main-nav .nav-links {
    display: flex;
    gap: 1rem;
    font-family: var(--font-display);
    font-size: 1.4rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

@media (min-width: 768px) {
    .main-nav .nav-links {
        gap: 2rem;
        font-size: 1.8rem;
    }
}
.main-nav .nav-links a {
    color: var(--dohna-pink);
    text-decoration: none;
    transition: color 0.2s, text-shadow 0.2s;
}
.main-nav .nav-links a:hover, .main-nav a.active {
    color: var(--dohna-yellow);
    text-shadow: 0 0 5px var(--dohna-yellow);
}
.main-nav .logo {
    font-family: var(--font-body);
    font-size: 1.2rem;
    color: var(--text-color);
    font-weight: 700;
}
.main-nav .logo span {
    display: inline-block;
    width: 24px;
    height: 24px;
    vertical-align: middle;
    margin-right: 8px;
    background-image: url(/favicon.ico);
    background-size: contain;
}


.main-content {
    grid-area: main;
    position: relative;
    padding: 1.5rem;
    border: 3px solid var(--dohna-cyan);
    border-radius: var(--border-radius);
    animation: slideInRight 0.5s 0.4s both;
    overflow: hidden;
    word-wrap: break-word;
    overflow-wrap: break-word;
    align-self: start;
}

@media (min-width: 768px) {
    .main-content {
        padding: 2.5rem;
    }
}
.main-content::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--dohna-bg-dark);
    transform: skewX(-5deg);
    z-index: -1;
}

.main-content pre {
    overflow-x: auto;
    background-color: rgba(0,0,0,0.3);
    border: 2px solid var(--dohna-pink);
    padding: 1rem;
    border-radius: 5px;
}

.main-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1rem auto;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.main-content figure {
    margin: 1.5rem 0;
    text-align: center;
}

.main-content figure img {
    margin: 0;
}

.main-content figcaption {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
    font-style: italic;
}

.main-content p {
    line-height: 1.6;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.main-content ul, .main-content ol {
    margin: 1rem 0;
    padding-left: 2rem;
    color: var(--text-color);
}

.main-content li {
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

.main-content blockquote {
    border-left: 4px solid var(--dohna-pink);
    padding-left: 1rem;
    margin: 1.5rem 0;
    color: var(--text-muted);
    font-style: italic;
    background-color: rgba(255, 51, 168, 0.1);
    padding: 1rem;
    border-radius: var(--border-radius);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    color: var(--dohna-yellow);
}

h1 {
    font-size: 2.5rem;
    margin: 0 0 1.5rem 0;
    animation: glitch 2s linear infinite;
    text-align: center;
    line-height: 1.2;
    position: relative;
    isolation: isolate;
}

h1::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(0deg, rgba(0,0,0,0.3) 0, rgba(0,0,0,0.3) 1px, transparent 1px, transparent 3px);
    pointer-events: none;
    z-index: 1;
}

@media (min-width: 768px) {
    h1 {
        font-size: 4rem;
    }
}

h2 {
    font-size: 1.8rem;
    color: var(--dohna-pink);
    line-height: 1.3;
}

@media (min-width: 768px) {
    h2 {
        font-size: 2.5rem;
    }
}

h3 {
    font-size: 1.0rem;
    color: var(--dohna-pink);
    line-height: 1.0;
}

@media (min-width: 768px) {
    h3 {
        font-size: 1.5rem;
    }
}

.post-list-item {
    position: relative;
    background-color: var(--dohna-bg-dark);
    border: 2px solid var(--dohna-pink);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    gap: 1.5rem;
    transition: transform var(--transition-speed) ease-in-out, box-shadow var(--transition-speed) ease-in-out;
}

@media (max-width: 767px) {
    .post-list-item {
        flex-direction: column;
        gap: 1rem;
    }
}
.post-list-item::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--dohna-bg-dark);
    transform: skewX(-5deg);
    z-index: -1;
}
.post-list-item:hover {
    transform: translateY(-2px) scale(1.01);
    box-shadow: 0 8px 25px rgba(255, 51, 168, 0.3);
}
.post-list-item .post-content {
    flex: 1;
    position: relative;
    z-index: 1;
}
.post-list-item h2 a {
    font-family: var(--font-body);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dohna-cyan);
    text-shadow: none;
}
.post-list-item h2 a:hover {
    color: var(--dohna-yellow);
}
.post-list-item p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
}
.post-list-item footer {
    margin-top: 1rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    opacity: 0.8;
}
.post-list-item img {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border: 2px solid var(--dohna-cyan);
    border-radius: var(--border-radius);
    position: relative;
    z-index: 1;
    transition: transform var(--transition-speed) ease-in-out;
}

.post-list-item:hover img {
    transform: scale(1.05);
}

.stretched-link::after {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 1;
    content: "";
}

@media (min-width: 768px) {
    .post-list-item img {
        width: 150px;
        height: 150px;
    }
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin: 2rem 0;
    padding: 0;
    list-style: none;
}

.tag-button {
    display: inline-block;
    padding: 0.4rem 1.2rem;
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--dohna-cyan);
    background-color: transparent;
    border: 2px solid var(--dohna-cyan);
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: all var(--transition-speed) ease-in-out;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.tag-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 51, 168, 0.7), transparent);
    transition: left calc(var(--transition-speed) * 2) ease-in-out;
    z-index: -1;
}

.tag-button:hover {
    color: var(--dohna-bg-dark);
    background-color: var(--dohna-cyan);
    box-shadow: 0 0 15px var(--dohna-cyan), 0 0 25px var(--dohna-pink);
    transform: translateY(-2px) scale(1.02);
}

.tag-button:hover::before {
    left: 100%;
}


@keyframes slideInDown { from { transform: translateY(-100%); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes slideInLeft { from { transform: translateX(-100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes slideInRight { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

@keyframes glitch {
    2%, 64% { transform: translate(1px, 0) skew(0deg); }
    4%, 60% { transform: translate(-1px, 0) skew(0deg); }
    62% { transform: translate(0, 0) skew(2deg); }
}

* {
    will-change: auto;
}

.post-list-item:hover,
.post-list-item img {
    will-change: transform;
}

/* TOC Styles */
.toc {
    position: relative;
    padding: 1.5rem;
    margin-bottom: 2rem;
    border: 3px solid var(--dohna-cyan);
    border-radius: var(--border-radius);
    background-color: var(--dohna-bg-dark);
    z-index: 1;
}

.toc::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--dohna-bg-dark);
    transform: skewX(-5deg);
    z-index: -1;
    border-radius: var(--border-radius);
}

.toc h2 {
    font-size: 1.8rem;
    color: var(--dohna-pink);
    margin-top: 0;
    margin-bottom: 1rem;
    text-align: center;
}

.toc ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.toc li a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--dohna-cyan);
    border: 2px solid var(--dohna-cyan);
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: all var(--transition-speed) ease-in-out;
    font-family: var(--font-body);
}

.toc li a:hover {
    color: var(--dohna-bg-dark);
    background-color: var(--dohna-cyan);
    box-shadow: 0 0 10px var(--dohna-cyan);
    transform: translateY(-2px);
}