:root {
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --text-color: #ffffff;
    --input-bg: rgba(255, 255, 255, 0.2);
    --btn-bg: #ffffff;
    --btn-text: #667eea;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.auth-container {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: 16px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.form-group {
    margin-bottom: 1rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

input {
    width: 100%;
    padding: 0.8rem;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    background: var(--input-bg);
    color: white;
    font-size: 1rem;
    box-sizing: border-box;
    outline: none;
    transition: all 0.3s ease;
}

input:focus {
    border-color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.25);
}

input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.btn-primary {
    width: 100%;
    padding: 0.8rem;
    border: none;
    border-radius: 8px;
    background: var(--btn-bg);
    color: var(--btn-text);
    font-weight: bold;
    cursor: pointer;
    font-size: 1rem;
    transition: transform 0.2s;
}

.btn-primary:hover {
    transform: scale(1.02);
}

.links {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.9rem;
}

.links a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
}

.links a:hover {
    text-decoration: underline;
}

.error-msg {
    background: rgba(255, 0, 0, 0.2);
    border: 1px solid rgba(255, 0, 0, 0.3);
    padding: 0.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    text-align: center;
    font-size: 0.9rem;
}