* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #000;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

main:has(.policy-container),
main:has(.features-container),
main:has(.feedback-container) {
    align-items: flex-start;
}

.landing {
    text-align: center;
    padding: 40px 20px;
}

.logo-container {
    margin-bottom: 30px;
}

.logo {
    max-width: 400px;
    height: auto;
}

.tagline {
    font-size: 0.75rem;
    color: #fff;
    font-weight: 300;
    letter-spacing: 0.05em;
    opacity: 0.5;
}

.landing-links {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.landing-links a {
    color: #555;
    text-decoration: none;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: color 0.2s ease;
}

.landing-links a:hover {
    color: #fff;
}

footer {
    padding: 20px;
    text-align: center;
    color: #666;
    font-size: 0.875rem;
}

.policy-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
    color: #ccc;
}

.policy-container h1 {
    color: #fff;
    font-size: 2rem;
    margin-bottom: 10px;
}

.policy-container .last-updated {
    color: #666;
    font-size: 0.875rem;
    margin-bottom: 30px;
}

.policy-container section {
    margin-bottom: 30px;
}

.policy-container h2 {
    color: #fff;
    font-size: 1.25rem;
    margin-bottom: 10px;
}

.policy-container h3 {
    color: #ddd;
    font-size: 1rem;
    margin-top: 15px;
    margin-bottom: 8px;
}

.policy-container a {
    color: #6fa8dc;
    text-decoration: none;
}

.policy-container a:hover {
    text-decoration: underline;
}

.policy-container p {
    margin-bottom: 10px;
}

.policy-container ul {
    margin-left: 20px;
    margin-bottom: 10px;
}

.policy-container li {
    margin-bottom: 5px;
}

/* Features Page */
.features-container {
    max-width: 1000px;
    width: 100%;
    margin: 0 auto;
    padding: 40px 20px;
    color: #ccc;
}

.features-container h1 {
    color: #fff;
    font-size: 2rem;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.features-logo {
    height: 45px;
    width: auto;
}

.features-layout {
    display: flex;
    gap: 40px;
    min-height: 400px;
}

.features-list {
    flex: 0 0 200px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.feature-item {
    background: transparent;
    border: 1px solid #333;
    color: #888;
    padding: 12px 16px;
    text-align: left;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: 4px;
}

.feature-item:hover {
    border-color: #555;
    color: #ccc;
}

.feature-item.active {
    background: #1a1a1a;
    border-color: #6fa8dc;
    color: #fff;
}

.features-detail {
    flex: 1;
    position: relative;
}

.feature-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.feature-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.feature-content h2 {
    color: #fff;
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.feature-content p {
    margin-bottom: 20px;
    line-height: 1.7;
}

.feature-content ul {
    margin-left: 20px;
}

.feature-content li {
    margin-bottom: 8px;
    color: #aaa;
}

@media (max-width: 768px) {
    .features-layout {
        flex-direction: column;
        gap: 20px;
    }

    .features-list {
        flex: none;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .feature-item {
        flex: 1 1 calc(50% - 4px);
        text-align: center;
    }
}

/* Feedback Page */
.feedback-container {
    max-width: 600px;
    width: 100%;
    margin: 0 auto;
    padding: 40px 20px;
    color: #ccc;
}

.feedback-container h1 {
    color: #fff;
    font-size: 2rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.feedback-logo {
    height: 45px;
    width: auto;
}

.feedback-intro {
    color: #888;
    margin-bottom: 30px;
}

.feedback-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    color: #aaa;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
    background: #111;
    border: 1px solid #333;
    border-radius: 4px;
    padding: 12px 15px;
    color: #fff;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #6fa8dc;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #555;
}

.form-group select {
    cursor: pointer;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-btn {
    background: #6fa8dc;
    color: #000;
    border: none;
    border-radius: 4px;
    padding: 14px 20px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
    margin-top: 10px;
}

.submit-btn:hover {
    background: #8bbae8;
}