@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;700&display=swap');

:root {
    --primary-color: #4CAF50; /* Green */
    --secondary-color: #2196F3; /* Blue for highlights/toggles */
    --text-color-light: #333;
    --text-color-dark: #f0f0f0;
    --background-light: #f7f9fc;
    --background-dark: #2c3e50; /* Darker background */
    --container-bg-light: #ffffff;
    --container-bg-dark: #34495e; /* Dark container */
    --border-color-light: #e0e0e0;
    --border-color-dark: #4a627a;
    --box-shadow-light: rgba(0, 0, 0, 0.08);
    --box-shadow-dark: rgba(0, 0, 0, 0.3);
    --button-bg-light: var(--primary-color);
    --button-hover-light: #45a049;
    --button-bg-dark: var(--secondary-color);
    --button-hover-dark: #1e88e5;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--background-light);
    color: var(--text-color-light);
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

body.dark-mode {
    background-color: var(--background-dark);
    color: var(--text-color-dark);
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 20px;
    background-color: var(--container-bg-light);
    border-radius: 8px;
    box-shadow: 0 4px 15px var(--box-shadow-light);
    flex-grow: 1; /* Allow container to grow and fill space */
    transition: background-color 0.3s, box-shadow 0.3s;
}

body.dark-mode .container {
    background-color: var(--container-bg-dark);
    box-shadow: 0 4px 15px var(--box-shadow-dark);
}

h1, h2, h3 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 15px;
    line-height: 1.2;
}

body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3 {
    color: var(--secondary-color);
}

h1 {
    font-size: 2.8em;
    font-weight: 700;
}

h2 {
    font-size: 2.2em;
    font-weight: 700;
}

h3 {
    font-size: 1.8em;
    font-weight: 400;
}

p {
    margin-bottom: 1em;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s ease-in-out;
}

body.dark-mode a {
    color: var(--secondary-color);
}

a:hover {
    text-decoration: underline;
    color: var(--button-hover-light);
}

body.dark-mode a:hover {
    color: var(--button-hover-dark);
}

/* --- Theme Switcher Styles --- */
.theme-switch-wrapper {
    display: flex;
    align-items: center;
    justify-content: flex-end; /* Align to the right in the header */
    margin-bottom: 0; /* Remove margin as it's in header now */
    padding: 10px 0;
}

.theme-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color-light); /* Grey for light mode */
    transition: .4s;
    border-radius: 34px;
}

body.dark-mode .slider {
    background-color: #555; /* Darker grey in dark mode */
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--secondary-color);
}

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

/* --- Table Styles for Blog Posts --- */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

th, td {
    border: 1px solid var(--border-color-light);
    padding: 10px;
    text-align: left;
}

body.dark-mode th,
body.dark-mode td {
    border: 1px solid var(--border-color-dark);
}

th {
    background-color: var(--background-light);
    font-weight: 700;
}

body.dark-mode th {
    background-color: #4a627a;
}

/* --- Buttons --- */
button {
    background-color: var(--button-bg-light);
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1em;
    transition: background-color 0.3s;
}

button:hover {
    background-color: var(--button-hover-light);
}

body.dark-mode button {
    background-color: var(--button-bg-dark);
}

body.dark-mode button:hover {
    background-color: var(--button-hover-dark);
}

/* --- Images in Content --- */
main img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 20px auto;
    border-radius: 8px;
    box-shadow: 0 2px 8px var(--box-shadow-light);
}

body.dark-mode main img {
    box-shadow: 0 2px 8px var(--box-shadow-dark);
}

/* --- Intro Text --- */
.intro-text {
    margin-bottom: 40px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color-light);
}

body.dark-mode .intro-text {
    border-bottom-color: var(--border-color-dark);
}

.intro-text h2 {
    color: var(--primary-color);
    font-size: 2em;
}

body.dark-mode .intro-text h2 {
    color: var(--secondary-color);
}