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

body {
    min-height: 100vh;
    background: linear-gradient(135deg, #1a120b, #2c1e12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

.glass-card {
    width: 400px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: 28px;
    padding: 30px 28px;
    border: 1px solid rgba(255, 215, 140, 0.5);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    transition: all 0.3s;
}

.tabs {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    justify-content: center;
}

.tab-btn {
    background: transparent;
    border: none;
    font-size: 1.3rem;
    font-weight: 600;
    color: #ecd9b4;
    cursor: pointer;
    padding-bottom: 8px;
    transition: 0.2s;
    border-bottom: 2px solid transparent;
}

.tab-btn.active {
    color: #f3c26b;
    border-bottom-color: #e3a72e;
}

input {
    width: 100%;
    padding: 12px 16px;
    margin: 12px 0;
    background: rgba(30, 20, 15, 0.6);
    border: 1px solid rgba(220, 160, 80, 0.6);
    border-radius: 40px;
    color: #fff;
    font-size: 1rem;
    outline: none;
    transition: 0.2s;
}

input:focus {
    border-color: #e3a72e;
    box-shadow: 0 0 8px rgba(227, 167, 46, 0.5);
}

button[type="submit"] {
    width: 100%;
    padding: 12px;
    margin-top: 20px;
    background: linear-gradient(135deg, #d4a373, #b5835a);
    border: none;
    border-radius: 40px;
    color: #1a120b;
    font-weight: bold;
    font-size: 1.1rem;
    cursor: pointer;
    transition: 0.2s;
}

button[type="submit"]:hover {
    transform: scale(1.02);
    background: linear-gradient(135deg, #e3a72e, #c6861f);
    box-shadow: 0 5px 15px rgba(227, 167, 46, 0.4);
}

.message {
    margin-top: 15px;
    text-align: center;
    font-size: 0.9rem;
    color: #ffaa66;
}

@media (max-width: 480px) {
    .glass-card {
        width: 90%;
        padding: 20px;
    }
}