/* Auth Pages - Login & Signup */
.auth-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.auth-body::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 40%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 70% 60%, rgba(59, 130, 246, 0.06) 0%, transparent 50%);
    animation: authBgFloat 20s ease-in-out infinite;
}

@keyframes authBgFloat {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-2%, 2%); }
}

.auth-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
}

.auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    border-radius: 16px;
    font-size: 22px;
    font-weight: 800;
    font-family: var(--font-en);
    color: #fff;
    margin-bottom: 12px;
}

.auth-logo-text {
    display: block;
    font-size: 24px;
    font-weight: 700;
    font-family: var(--font-en);
    background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.7) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    padding: 36px 32px;
    backdrop-filter: blur(20px);
}

.auth-title {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
}

.auth-subtitle {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 28px;
}

.auth-error {
    display: none;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 10px;
    padding: 12px 16px;
    color: #ef4444;
    font-size: 13px;
    margin-bottom: 20px;
}

.auth-field {
    margin-bottom: 20px;
}

.auth-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 6px;
}

.auth-input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    color: #fff;
    font-size: 14px;
    font-family: var(--font-ko);
    transition: all 0.2s;
    outline: none;
    box-sizing: border-box;
}

.auth-input:focus {
    border-color: var(--accent-purple);
    background: rgba(139, 92, 246, 0.05);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.auth-input::placeholder {
    color: rgba(255, 255, 255, 0.25);
}

.auth-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.auth-submit {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    border: none;
    border-radius: 10px;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font-ko);
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 4px;
}

.auth-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.auth-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.auth-footer a {
    color: var(--accent-purple);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0;
    color: rgba(255, 255, 255, 0.2);
    font-size: 12px;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
}

.test-account-btn {
    width: 100%;
    padding: 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 13px;
    font-family: var(--font-ko);
    cursor: pointer;
    transition: all 0.2s;
}

.test-account-btn:hover {
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.8);
}

.auth-bottom-link {
    text-align: center;
    margin-top: 24px;
}

.auth-bottom-link a {
    color: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.2s;
}

.auth-bottom-link a:hover {
    color: rgba(255, 255, 255, 0.7);
}

@media (max-width: 480px) {
    .auth-card {
        padding: 28px 20px;
    }
    .auth-row {
        grid-template-columns: 1fr;
    }
}