* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.auth-container {
    background-color: #16213e;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    width: 100%;
    max-width: 420px;
    text-align: center;
}

.auth-container h2 {
    color: #e94560;
    margin-bottom: 1.8rem;
    font-weight: 700;
}

.input-group {
    position: relative;
    margin-bottom: 1.2rem;
}

.input-group input {
    width: 100%;
    padding: 0.9rem 1rem 0.9rem 2.8rem;
    background-color: #0f3460;
    border: none;
    border-radius: 6px;
    color: #fff;
    font-size: 0.95rem;
    outline: none;
    transition: 0.3s;
}

.input-group input:focus {
    box-shadow: 0 0 0 2px #e9456070;
}

.input-group i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #a2a2a2;
}

.btn {
    width: 100%;
    padding: 0.9rem;
    background-color: #e94560;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s;
    margin-top: 0.5rem;
}

.btn:hover {
    background-color: #d13550;
}

.btn:disabled {
    background-color: #882c3b;
    cursor: not-allowed;
}

.switch-page {
    margin-top: 1.2rem;
    font-size: 0.85rem;
    color: #a2a2a2;
}

.switch-page a {
    color: #e94560;
    text-decoration: none;
    font-weight: 500;
}

.otp-section {
    display: none;
    margin-top: 1rem;
}

.alert {
    padding: 0.7rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    display: none;
}

.alert.success {
    background-color: #2e7d32;
}

.alert.error {
    background-color: #c62828;
}