:root {
    --gap: 24px;
    --content-gap: 20px;
    --nav-width: 1024px;
    --main-width: 720px;
    --header-height: 60px;
    --footer-height: 60px;
    --radius: 16px;

    --theme: #f8f9fa;
    --entry: rgba(255, 255, 255, 0.7);
    --primary: #492700;
    --secondary: #593200;
    --tertiary: #e5e5e5;
    --content: #212529;
    --hljs-bg: rgba(255, 255, 255, 0.6);
    --code-bg: rgba(255, 255, 255, 0.6);
    --border: rgba(0, 0, 0, 0.05);
    --shadow: rgba(0, 0, 0, 0.05);
}

:root[data-theme="dark"] {
    --theme: #000000;
    --entry: rgba(25, 25, 25, 0.7);
    --primary: #ff8800;
    --secondary: #ffaa44;
    --tertiary: #444;
    --content: #eeeeee;
    --hljs-bg: rgba(0, 0, 0, 0.3);
    --code-bg: rgba(0, 0, 0, 0.3);
    --border: rgba(255, 255, 255, 0.1);
    --shadow: rgba(0, 0, 0, 0.3);
}

body {
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--theme);
    background-image:
        radial-gradient(circle at 10% 20%, rgba(255, 136, 0, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(255, 60, 0, 0.05) 0%, transparent 40%);
    background-attachment: fixed;
    color: var(--content);
    transition: background-color 0.3s, color 0.3s;
}

main {
    flex: 1;
    width: 100%;
    max-width: var(--main-width);
    margin: 0 auto;
    padding: var(--gap);
    box-sizing: border-box;
}

a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

a:hover {
    color: var(--secondary);
    text-shadow: 0 0 10px rgba(255, 136, 0, 0.2);
}

h1, h2, h3, h4, h5, h6, .entry-title {
    color: var(--content);
}

.entry-title a {
    color: var(--content);
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 10px;
    z-index: 1000;
    margin: 10px auto var(--gap) auto;
    padding: 10px 20px;
    width: 100%;
    max-width: var(--nav-width);
    box-sizing: border-box;
}

.nav {
    background: transparent;
}

.nav-menu {
    list-style: none;
    display: flex;
    gap: 20px;
    margin: 0;
    padding: 0;
}

.footer {
    text-align: center;
    margin-top: var(--gap);
    margin-bottom: 20px;
    padding: 20px;
    width: 100%;
    max-width: var(--nav-width);
    margin-left: auto;
    margin-right: auto;
    box-sizing: border-box;
}

.post-entry,
.header,
.footer,
.profile,
.toc,
.post-single,
.home-info {
    background: var(--entry);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    box-shadow: 0 4px 30px var(--shadow);
    border-radius: var(--radius);
}

/* Post Entry */
.post-entry {
    margin-bottom: var(--gap);
    padding: var(--gap);
    position: relative;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.post-entry:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(255, 136, 0, 0.15);
    border-color: var(--primary);
}

.entry-link {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
}

/* Post Single */
.post-single {
    padding: 40px;
}

/* Home Info */
.home-info {
    padding: 40px;
    margin-bottom: 40px;
}

/* Buttons */
.button {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    border: none;
    font-weight: bold;
    box-shadow: 0 4px 15px rgba(255, 136, 0, 0.3);
}

/* Code Highlight */
.highlight {
    background: var(--hljs-bg) !important;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--theme);
}

::-webkit-scrollbar-thumb {
    background: var(--tertiary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}