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

body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    background-color: #1a1a1a;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-container {
    background: #2d2d2d;
    border-radius: 0;
    width: 100%;
    max-width: 380px;
    padding: 40px 30px;
    border: 1px solid #404040;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.logout-container {
    background: #2d2d2d;
    border-radius: 0;
    width: 100%;
    max-width: 380px;
    padding: 40px 30px;
    border: 1px solid #404040;
}

h1 {
    color: #e0e0e0;
    margin-bottom: 24px;
    font-size: 24px;
    font-weight: 500;
    text-align: center;
}

.input-group {
    margin-bottom: 16px;
}

label {
    display: block;
    margin-bottom: 6px;
    color: #b0b0b0;
    font-size: 14px;
    font-weight: 500;
}

.top-nav {
    background-color: #1a1a1a;
    color: white;
    padding: 0 20px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 600;
    color: #ffffff;
}

.nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-link {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
    padding: 8px 12px;
    border-radius: 0;
}

.nav-link:hover {
    color: #808080;
    background-color: rgba(255, 255, 255, 0.1);
}

.nav-button {
    background-color: #505050;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 0;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.2s;
}

.nav-button:hover {
    background-color: #606060;
}

/* Adjust main content to account for fixed nav */
.content {
    margin-top: 80px; /* Give space below fixed nav */
    padding: 20px;
}

input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #505050;
    border-radius: 0;
    font-size: 15px;
    background-color: #3d3d3d;
    color: #e0e0e0;
    transition: border-color 0.2s, background-color 0.2s;
}

input::placeholder {
    color: #808080;
}

input:focus {
    border-color: #707070;
    outline: none;
    background-color: #454545;
}

button {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 0;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.login-btn {
    background-color: #505050;
    color: white;
    margin-top: 8px;
    margin-bottom: 16px;
}

.login-btn:hover {
    background-color: #606060;
}

.register-btn {
    background-color: transparent;
    color: #b0b0b0;
    border: 1px solid #505050;
}

.register-btn:hover {
    background-color: #3d3d3d;
    color: #e0e0e0;
}

.error-message {
    color: #ff6b6b;
    font-size: 13px;
    margin-top: 16px;
    text-align: center;
}

.login-container {
    position: relative;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    padding: 40px 30px;
}

.active-form {
    display: block;
    opacity: 1;
    transition: opacity 0.3s ease-in-out;
}

.hidden-form {
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.input-group {
    margin-bottom: 15px;
}

.input-group label {
    display: block;
    margin-bottom: 5px;
}

.input-group input {
    width: 100%;
    padding: 10px 12px;
    box-sizing: border-box;
}

.login-btn, .register-btn {
    width: 100%;
    padding: 10px;
    margin-top: 10px;
    cursor: pointer;
}

.error-message {
    color: #ff6b6b;
    margin-top: 15px;
    text-align: center;
}