/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue",
        sans-serif;
    color: #333;
    line-height: 1.6;
    background-color: #f9f9f9;
}

a {
    text-decoration: none;
    color: #135d8e;
    transition: color 0.3s ease;
}

a:hover {
    color: #0e578f;
}

img {
    width: 100%;
    height: auto;
}

.hidden {
    display: none;
}

/* Layout */
.layout {
    position: relative;
    left: 0;
    padding-left: 0;
    transition: all 0.3s ease;

    /* Push footer to bottom */
    display: flex;
    flex-direction: column;
    min-height: 100vh; /* fallback height */
    min-height: 100svh; /* new small viewport height for modern browsers */
}

/* Header */
.header {
    padding: 1.5em 2em;
    border-bottom: 1px solid #eee;
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.header h1 {
    margin: 0.2em 0;
    font-size: 3em;
    /* font-weight: 300; */
    /* color: #222; */
}

.header h2 {
    /* font-weight: 300; */
    margin: 0;
    /* color: #666; */
}

/* Content */
.content {
    padding: 2em 3em;
    max-width: 800px;
    width: 100%;
    margin: 2em auto;
    background-color: #fff;
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.content h2 {
    color: #222;
    margin: 1em 0 0.5em;
    font-weight: 500;
    border-bottom: 1px solid #eee;
    padding-bottom: 0.3em;
}

.content p {
    margin-bottom: 1em;
}

.content ul,
.content ol {
    margin-left: 2em;
    margin-bottom: 1em;
}

.content .button,
.content .button-default,
.content .button-info {
    border: 2px solid #000;
    border-radius: 5px;
    background-color: #fff;
    color: #000;
    padding: 14px 28px;
    font-size: 16px;
    cursor: pointer;
}

.content .button-default {
    border-color: #e7e7e7;
    color: black;
    text-decoration: none;
}

.content .button-default:hover,
.content .button-default:focus {
    background: #e7e7e7;
    text-decoration: underline;
}

.content .button-info {
    border-color: #0078d5;
    color: #0064ff;
}

.content .button-info:hover {
    background: #0078d5;
    color: white;
}

/* Side Menu */
.menu {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1000;
    width: 280px;
    background-color: #1f3a5f;
    color: #fff;
    overflow-y: auto;
    transform: translateX(-280px);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.15);
}

.menu.active {
    transform: translateX(0);
}

.menu-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
    font-size: 1.2em;
    padding: 1.2em 1em;
    color: #fff;
    background-color: rgba(0, 0, 0, 0.2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.menu-heading small {
    font-size: 0.7em;
    opacity: 0.7;
    text-transform: none;
    font-weight: 400;
}

.menu-list {
    list-style-type: none;
    margin: 0;
    padding: 0;
}

.menu-item {
    display: block;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.menu-item a {
    display: flex;
    align-items: center;
    padding: 0.9em 1em;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 400;
    transition: all 0.2s ease;
}

.menu-item a:hover {
    background-color: rgba(0, 0, 0, 0.2);
    color: #fff;
    text-decoration: none;
}

.menu-item a.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-left: 4px solid #42b8dd;
}

/* Icons for menu items */
.menu-item a i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.menu-item a:hover i {
    opacity: 1;
}

/* Submenu styles */
.has-submenu {
    position: relative;
}

.has-submenu > a {
    position: relative;
}

.has-submenu > a:after {
    content: "›";
    position: absolute;
    right: 15px;
    font-size: 1.2em;
    transition: transform 0.3s ease;
}

.has-submenu.open > a:after {
    transform: rotate(90deg);
}

.submenu {
    max-height: 0;
    overflow: hidden;
    background-color: rgba(0, 0, 0, 0.15);
    transition: max-height 0.3s ease;
}

.submenu a {
    padding-left: 3em;
    font-size: 0.95em;
}

.has-submenu.open .submenu {
    max-height: 1000px;
}

/* Menu toggle button */
.menu-toggle {
    position: fixed;
    top: 15px;
    left: 15px;
    z-index: 1200; /* Higher than menu */
    background-color: rgba(31, 58, 95, 0.9);
    border-radius: 4px;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border: none;
    outline: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.menu-toggle.active {
    left: 295px;
}

.menu-toggle span,
.menu-toggle span:before,
.menu-toggle span:after {
    position: absolute;
    display: block;
    width: 22px;
    height: 2px;
    background-color: #fff;
    border-radius: 1px;
    transition: all 0.3s ease;
}

.menu-toggle span {
    top: 19px;
    left: 9px;
}

.menu-toggle span:before {
    content: "";
    top: -7px;
}

.menu-toggle span:after {
    content: "";
    top: 7px;
}

.menu-toggle.active span {
    background-color: transparent;
}

.menu-toggle.active span:before {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:after {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Table */
table {
    width: 100%;
    border-collapse: collapse;
    font-family: Arial, sans-serif;
    margin: 1rem 0;
}

th,
td {
    padding: 10px 14px;
    border: 1px solid #ddd;
    text-align: left;
}

th {
    background: #f5f5f5;
    font-weight: 600;
}

tbody tr:nth-child(even) {
    background: #fafafa;
}

tbody tr:hover {
    background: #f0f7ff;
}

code {
    background: #f4f4f4;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: Consolas, Monaco, monospace;
}

/* Theme switcher */
.theme-switch {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background-color: rgba(0, 0, 0, 0.15);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.theme-switch span {
    font-size: 0.9em;
    font-weight: 300;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: 0.4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: #42b8dd;
}

input:checked + .slider:before {
    transform: translateX(26px);
}

/* Footer */
.footer {
    background-color: #fff;
    padding: 1.5em 2em;
    text-align: center;
    font-size: 0.9em;
    color: #403b3b;
    margin-top: auto; /* Push footer to bottom */
    border-top: 1px solid #eee;
    /* margin-top: 2em; */
}

/* Responsive styles */
@media (min-width: 768px) {
    .layout {
        padding-left: 280px;
    }

    .menu {
        transform: translateX(0);
    }

    .menu-toggle {
        display: none;
    }
}

/* Dark mode */
body.dark-mode {
    background-color: #1a1a1a;
    color: #f5f5f5;
}

body.dark-mode .header,
body.dark-mode .content,
body.dark-mode .footer {
    background-color: #252525;
    border-color: #333;
    box-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

body.dark-mode .header h1,
body.dark-mode .content h2 {
    color: #e1e1e1;
}

/* body.dark-mode .header h2,
body.dark-mode .footer {
    color: #999;
} */

body.dark-mode .content p {
    color: #ccc;
}

body.dark-mode .content h2 {
    border-bottom-color: #333;
}

body.dark-mode .menu {
    background-color: #0a1020;
}

body.dark-mode a {
    color: #78b5ee;
}

body.dark-mode a:hover {
    color: #7fb9f5;
}

/* === Dark Mode Buttons === */
body.dark-mode .content .button,
body.dark-mode .content .button-info {
    background-color: #1e1e1e;
    color: #f0f0f0;
    border: 2px solid #f0f0f0;
}

body.dark-mode .content .button-info {
    border-color: #3399ff;
    color: #3399ff;
}

body.dark-mode .content .button-default {
    color: black;
}

body.dark-mode .footer {
    color: #ead7d7;
}

/* === Dark Mode Tables === */
body.dark-mode table {
    background-color: #252525;
    color: #f5f5f5;
    border-color: #3a3a3a;
}

body.dark-mode th,
body.dark-mode td {
    border: 1px solid #3a3a3a;
}

body.dark-mode th {
    background-color: #303030;
    color: #ffffff;
}

body.dark-mode tbody tr {
    background-color: #252525;
}

body.dark-mode tbody tr:nth-child(even) {
    background-color: #2b2b2b;
}

body.dark-mode tbody tr:hover {
    background-color: #1f3a56; /* subtle blue highlight */
}

/* === Dark Mode Code === */
body.dark-mode code {
    background-color: #303030;
    color: #ffcb6b; /* warm syntax-like color */
    border: 1px solid #444;
    padding: 2px 6px;
    border-radius: 4px;
}

body.dark-mode pre {
    background-color: #1e1e1e;
    color: #f5f5f5;
    border: 1px solid #3a3a3a;
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
}

body.dark-mode pre code {
    background: transparent;
    border: none;
    color: inherit;
    padding: 0;
}

/* Animation for menu items */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.menu.active .menu-item {
    animation: fadeInRight 0.3s ease forwards;
    opacity: 0;
}

.menu.active .menu-item:nth-child(1) {
    animation-delay: 0.05s;
}
.menu.active .menu-item:nth-child(2) {
    animation-delay: 0.1s;
}
.menu.active .menu-item:nth-child(3) {
    animation-delay: 0.15s;
}
.menu.active .menu-item:nth-child(4) {
    animation-delay: 0.2s;
}
.menu.active .menu-item:nth-child(5) {
    animation-delay: 0.25s;
}
.menu.active .menu-item:nth-child(6) {
    animation-delay: 0.3s;
}
.menu.active .menu-item:nth-child(7) {
    animation-delay: 0.35s;
}
.menu.active .menu-item:nth-child(8) {
    animation-delay: 0.4s;
}