/* Base */
body {
    margin: 0;
    font-family: Arial, sans-serif;
}

h1 {
    margin: 0;
    font-size: 36px;
}

header {
    text-align: center;
    padding: 32px 20px 20px;
}

footer {
    text-align: center;
    padding: 20px;
}

button {
    margin-top: 16px;
    padding: 10px 18px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: 0.3s;
}

iframe {
    width: 100%;
    max-width: 100%;
    border: none;
    border-radius: 12px;
}

hr {
    border: none;
    height: 1px;
    background: linear-gradient(to right, transparent, #330867, transparent);
}

/* Blog page layout */
body.blog-page {
    background: linear-gradient(-20deg, #e9defa 0%, #fbfcdb 100%);
}

body.blog-page main {
    max-width: 900px;
    margin: 0 auto;
    padding: 24px;
}

body.blog-page h1 {
    color: #4b3f72;
}

body.blog-page section {
    margin: 24px 0;
    padding: 24px;
    border-radius: 16px;
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

body.blog-page footer {
    color: rgb(17, 3, 37);
}

/* Blog page navigation */
body.blog-page nav {
    margin-top: 16px;
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

body.blog-page nav a {
    padding: 8px 14px;
    border-radius: 999px;
    color: #4b3f72;
    font-weight: bold;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.7);
    transition: 0.3s;
}

body.blog-page nav a:hover {
    color: white;
    background: #4b3f72;
}

/* Blog hero */
#hero {
    text-align: center;
}

#hero h2 {
    margin-bottom: 12px;
    color: #4b3f72;
}

#hero p {
    font-size: 18px;
    color: #555;
}

#current-time {
    margin-top: 16px;
    color: #555;
    font-weight: bold;
}

#theme-toggle {
    margin-left: 12px;
}

body.blog-page button {
    color: white;
    background-color: #4b3f72;
}

body.blog-page button:hover {
    background-color: #355c7d;
}

/* Blog content sections */
#about {
    display: flex;
    align-items: center;
    gap: 24px;
}

#about img {
    border-radius: 16px;
    object-fit: cover;
}

.post-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.post-card {
    padding: 20px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.75);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
}

.post-card h3 {
    margin-top: 0;
    color: #4b3f72;
}

.post-card a {
    color: #355c7d;
    font-weight: bold;
    text-decoration: none;
}

table {
    width: 100%;
    margin-top: 12px;
    border-collapse: collapse;
}

th,
td {
    background-color: #e8fff0;
}

#sentence1 {
    color: rgb(10, 203, 126);
}

.style1 {
    color: rgb(10, 203, 126);
    font-size: 20px;
    font-style: italic;
}

input[type="submit"] {
    margin-top: 12px;
    padding: 10px 18px;
    border: none;
    border-radius: 10px;
    color: white;
    cursor: pointer;
    background-color: #00c853;
}

input[type="submit"]:hover {
    background-color: #00b248;
}

/* Blog dark mode */
body.blog-page.dark-mode {
    color: #f5f5f5;
    background: linear-gradient(-20deg, #1f1c2c 0%, #3a2f4d 100%);
}

body.blog-page.dark-mode section {
    color: #f5f5f5;
    background-color: rgba(40, 40, 60, 0.9);
}

body.blog-page.dark-mode h1,
body.blog-page.dark-mode h2,
body.blog-page.dark-mode h3 {
    color: #f8d66d;
}

body.blog-page.dark-mode p,
body.blog-page.dark-mode li,
body.blog-page.dark-mode td,
body.blog-page.dark-mode th,
body.blog-page.dark-mode footer,
body.blog-page.dark-mode #current-time {
    color: #f0f0f0;
}

body.blog-page.dark-mode nav a {
    color: #f5f5f5;
    background: rgba(255, 255, 255, 0.12);
}

body.blog-page.dark-mode nav a:hover {
    color: #2b2238;
    background: #f8d66d;
}

body.blog-page.dark-mode .post-card {
    background: rgba(60, 60, 85, 0.95);
}

body.blog-page.dark-mode button {
    color: #2b2238;
    background-color: #f8d66d;
}

body.blog-page.dark-mode button:hover {
    background-color: #ffd84d;
}

/* Date page layout */
body.date-page {
    min-height: 100vh;
    padding: 32px;
    background: linear-gradient(135deg, #e8fff0, #f7f0ff);
}

.page {
    max-width: 850px;
    margin: 0 auto;
    padding: 32px;
    border: 6px solid transparent;
    border-radius: 24px;
    background:
        linear-gradient(white, white) padding-box,
        linear-gradient(135deg, #00c853, #b2ff59, #330867) border-box;
    box-shadow: 0 18px 50px rgba(51, 8, 103, 0.15);
}

body.date-page section {
    margin: 16px 0 28px;
    padding: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

body.date-page footer {
    color: #555;
    padding-top: 20px;
    border-top: 3px double rgba(51, 8, 103, 0.35);
}

/* Date page navigation */
.site-nav {
    width: min(100%, 680px);
    margin: 0 auto 28px;
}

.nav-menu {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
    flex-wrap: wrap;
}

.nav-menu a {
    display: block;
    padding: 10px 16px;
    border: 1px solid rgba(51, 8, 103, 0.35);
    border-radius: 999px;
    color: #330867;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.65);
    transition: 0.5s;
    -webkit-transition: 0.5s;
}

.nav-menu a:hover {
    color: white;
    background: #330867;
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(51, 8, 103, 0.18);
}

/* Date page content */
.profile-title {
    margin: 0 auto 24px;
    padding: 12px 18px;
    width: fit-content;
    border: 1px solid #330867;
    border-radius: 999px;
    text-align: center;
}

.topic,
.content {
    width: min(100%, 680px);
    margin: 0 auto;
}

.topic h2 {
    margin-bottom: 8px;
    color: #330867;
}

.content p,
.topic p {
    font-size: 16px;
    line-height: 1.6;
    color: #333;
}

/* Responsive */
@media (max-width: 600px) {
    body.date-page {
        padding: 16px;
    }

    .page {
        padding: 22px;
        border-width: 4px;
    }

    .profile-title {
        font-size: 22px;
    }

    .nav-menu {
        gap: 8px;
    }

    .nav-menu a {
        padding: 9px 12px;
        font-size: 14px;
    }
}