/* Theme variables */
:root {
    --background-primary: #ffffff;
    --background-secondary: #f8f9fa;
    --text-primary: #222;
    --text-secondary: #555;
    --border-color: #e0e0e0;
    --shadow-color: rgba(0, 0, 0, 0.05);
    --button-bg: #333;
    --button-hover: #000;
    --cancel-bg: #e74c3c;
    --cancel-hover: #c0392b;
    --teaser-bg: #fefae0;
    --teaser-border: #e0c97f;
    --expired-bg: #fff3f3;
    --expired-border: #ffcccc;
    --progress-bg: #eee;
    --progress-active: #333;
    --navbar-bg: #fff;
}

/* Dark mode variables */
[data-theme="dark"] {
    --background-primary: #1a1a1a;
    --background-secondary: #2d2d2d;
    --text-primary: #e0e0e0;
    --text-secondary: #bbbbbb;
    --border-color: #444;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --button-bg: #555;
    --button-hover: #777;
    --cancel-bg: #a94442;
    --cancel-hover: #8a2e2b;
    --teaser-bg: #2d2d2d; /* Changed to match dark background */
    --teaser-border: #555; /* Darker, neutral border */
    --expired-bg: #2f1a1a;
    --expired-border: #6a2a2a;
    --progress-bg: #666; /* Lighter for visibility */
    --progress-active: #e0e0e0;
    --navbar-bg: #222;
}

/* Apply variables */
body {
    font-family: 'Roboto', sans-serif;
    font-size: 20px;
    line-height: 1.6;
    background-color: var(--background-primary);
    color: var(--text-primary);
}

/* Global link styling */
a {
    text-decoration: none;
    color: var(--text-primary);
}

/* Container */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.navbar {
    background-color: var(--navbar-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
    position: relative;
}
.logo h1 a {
    font-family: 'Playfair Display', serif;
    font-size: 36px;
    color: var(--text-primary);
    text-decoration: none;
}
.view {
    width: 100%;
    padding: 40px 0;
}
#app-container {
    min-height: 70vh;
}
.loading-text {
    font-style: italic;
    color: var(--text-secondary);
    text-align: center;
    padding: 40px;
}
.hero {
    background-color: var(--background-secondary);
    text-align: center;
    padding: 80px 0;
}
.hero-title {
    font-size: 52px;
    margin-bottom: 15px;
    font-family: 'Playfair Display', serif;
    color: var(--text-primary);
    letter-spacing: -1px;
}
.hero-subtitle {
    font-size: 22px;
    max-width: 800px;
    margin: 0 auto;
    color: var(--text-secondary);
}
.topics {
    padding: 60px 0;
}
.topics h3, .why-us-section h3 {
    font-size: 36px;
    margin-bottom: 20px;
    font-family: 'Playfair Display', serif;
    text-align: center;
    color: var(--text-primary);
}
.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
.test-grid-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}
.test-box {
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background-color: var(--background-primary);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    overflow: hidden;
}
.test-box:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px var(--shadow-color);
}
.test-box img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}
.test-title {
    font-size: 22px;
    font-weight: 500;
    color: var(--text-primary);
    font-family: 'Playfair Display', serif;
    padding: 20px 15px;
}
.why-us-section {
    background-color: var(--background-primary);
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 40px;
}
.feature-box {
    background-color: var(--background-secondary);
    padding: 30px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}
.feature-box h4 {
    font-family: 'Playfair Display', serif;
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--text-primary);
}
.feature-box p {
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-secondary);
}
.test-wrapper {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px;
    background-color: var(--background-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 10px 25px var(--shadow-color);
}
.question-number-bar {
    display: flex;
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    margin-bottom: 30px;
    gap: 6px;
    padding-bottom: 10px;
    padding-right: 20px;
    -webkit-overflow-scrolling: touch;
    position: relative;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.question-number-bar::-webkit-scrollbar {
    display: none;
}
.question-number-bar::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    width: 30px;
    height: 100%;
    background: linear-gradient(to left, var(--background-primary), transparent);
}
.q-num {
    width: 28px;
    height: 28px;
    text-align: center;
    line-height: 28px;
    border-radius: 50%;
    background-color: var(--progress-bg);
    color: var(--text-primary);
    font-weight: bold;
    transition: all 0.3s ease;
    flex-shrink: 0;
}
.q-num.active {
    background-color: var(--progress-active);
    color: var(--background-primary);
    transform: scale(1.1);
}
.timer {
    font-size: 28px;
    font-weight: bold;
    text-align: center;
    color: var(--cancel-bg);
    margin-bottom: 30px;
    font-family: 'Playfair Display', serif;
}
.question-box h3 {
    font-size: 24px;
    margin-bottom: 25px;
    font-family: 'Playfair Display', serif;
    color: var(--text-primary);
    line-height: 1.4;
}
.answer-option {
    display: block;
    padding: 15px 20px;
    margin-bottom: 15px;
    background-color: var(--background-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}
.answer-option:hover {
    background-color: #3f3f3f; /* Darker hover for dark mode */
    border-color: #666; /* Darker border for contrast */
}
.answer-option:hover:not([data-theme="dark"]) {
    color: #ffffff; /* Lighten text in light mode hover */
}
.answer-option input {
    margin-right: 15px;
    transform: scale(1.3);
    vertical-align: middle;
}
.next-button {
    display: inline-block;
    padding: 14px 28px;
    font-size: 18px;
    font-weight: 500;
    background-color: var(--button-bg);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Roboto', sans-serif;
    transition: background-color 0.3s ease;
}
.next-button:hover {
    background-color: var(--button-hover);
}
.next-button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}
.cancel-button {
    display: inline-block;
    padding: 14px 28px;
    font-size: 18px;
    font-weight: 500;
    background-color: var(--cancel-bg);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Roboto', sans-serif;
    transition: background-color 0.3s ease;
}
.cancel-button:hover {
    background-color: var(--cancel-hover);
}
.cancel-button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}
.test-wrapper .button-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-top: 20px;
}
.expired-box {
    padding: 30px;
    background-color: var(--expired-bg);
    border: 1px solid var(--expired-border);
    border-radius: 10px;
    text-align: center;
    color: var(--cancel-bg);
    font-size: 20px;
}
.expired-box .cancel-button,
.expired-box .next-button {
    margin: 10px 5px;
}
.teaser-box {
    background-color: var(--teaser-bg);
    border: 1px solid var(--teaser-border);
    padding: 30px;
    border-radius: 12px;
    font-size: 22px;
    text-align: center;
    font-family: 'Playfair Display', serif;
    color: var(--text-primary);
}
.footer {
    background-color: var(--background-primary); /* Light mode background */
    text-align: center;
    font-size: 16px;
    padding: 40px 0;
    margin-top: 60px;
    color: var(--text-secondary); /* Light mode text */
}
.footer:not([data-theme="dark"]) {
    background-color: #f1f1f1; /* Custom light background for better contrast */
    color: #333; /* Darker text for readability in light mode */
}
[data-theme="dark"] .footer {
    background-color: var(--button-bg); /* Dark mode background */
    color: var(--text-secondary); /* Light text for dark mode */
}
.footer p {
    margin-bottom: 15px;
}
.footer nav a {
    margin: 0 15px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}
.footer nav a:hover {
    color: #fff;
}

@media (max-width: 768px) {
    .hero-title { font-size: 38px; }
    .hero-subtitle { font-size: 18px; }
    .topics h3, .why-us-section h3 { font-size: 30px; }
    .test-wrapper { padding: 20px; }
    .question-number-bar { gap: 4px; }
    .q-num { width: 24px; height: 24px; line-height: 24px; font-size: 14px; }
}

/* Payment form styling */
#email-form {
    margin-top: 20px;
    text-align: center;
}
#email, #confirm-email {
    width: 100%;
    max-width: 400px; /* Constrain width within test-wrapper */
    padding: 12px;
    font-size: 18px;
    margin-bottom: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: var(--background-primary);
    color: var(--text-primary);
    box-sizing: border-box;
}
#email:focus, #confirm-email:focus {
    outline: none;
    border-color: var(--button-bg);
    box-shadow: 0 0 5px var(--shadow-color);
}

/* PayPal button container */
#paypal-button-container {
    text-align: center;
    margin-top: 20px;
}
#paypal-button-container > * {
    display: inline-block;
    vertical-align: middle;
}

/* Dark mode toggle switch */
.toggle-container {
    position: absolute;
    top: 20px;
    right: 20px;
}
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}
.toggle-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: 34px;
}
.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}
input:checked + .slider {
    background-color: var(--button-bg);
}
input:checked + .slider:before {
    transform: translateX(26px);
}